Abstract:
An image processing apparatus includes a pick-up for picking-up a subject, temporal storage for temporarily storing sets of image information picked up by the pick-up during predetermined time periods, and a display for displaying the stored sets of image information and image information from the pick-up. A subject views the display during image pick-up. Also included is a control that causes temporal storage to store the sets of image information corresponding to the same subject picked up by the pick-up during the predetermined time periods, and causes display of the sets of image information corresponding to the same subject and stored in temporal storage discriminatively from the image information from the pick-up. At least one of the sets of image information is selected corresponding to the same subject in temporal storage.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a divisional of Ser. No. 08/958,742, filed Oct. 27, 1997, now U.S. Pat. No. 6,147,704, which was a continuation of Ser. No. 08/732,915, filed Oct. 17, 1996, now abandoned, which was a divisional of Ser. No. 08/339,880, filed Nov. 14, 1994, now U.S. Pat. No. 5,617,138, which was a continuation of Ser. No. 08/026,181, filed Mar. 1, 1993, now abandoned, which was a divisional of Ser. No. 07/788,302, filed Nov. 5, 1991, now abandoned. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to an image processing system for photographing an object and printing a photographed image. 
     2. Related Background Art 
     Conventionally, photo booth apparatuses have been provided for automatically taking a picture for the identification card or passport with the input of a coin, in which the apparatus comprises a camera, a photo developing unit and a flash with the optical silver salt photography. 
     However, with such apparatuses, due to pollution problems resulting from the use of chemicals to develop the photo, some limitations were imposed on the installing location, or great labors were taken for the maintenance of apparatus. 
     Also, it took some time to perform the chemical processing for development, so that the user had to wait for a picture to be completed for about five minutes, after the picture was taken. 
     Furthermore, there was a drawback that a photographed result was not seen until it was developed, and if the photographing might fail, the sheet was wasted or the fee was charged irrespective of the failure because the picture had been already printed on the sheet. 
     Also, it was impossible to take a plurality of photographs and print only the best photographed picture among them. 
     Furthermore, there was a drawback that when supplies were used up or the apparatus might fail, the service was only inhibited, and an abnormal condition of the apparatus could be first detected by a service man in the round inspection, so that the user could not use the apparatus for a long term, which was inconvenient for the user and unprofitable for the dealer. 
     Also, since the black-and-white apparatus and the color apparatus were separately provided, it was necessary to search about for an apparatus which allows a desired picture to be taken. 
     Furthermore, there was a drawback that if various functions were installed, the cost would be raised. 
     Furthermore, it was impossible to print images other than those photographed with the same apparatus. 
     SUMMARY OF THE INVENTION 
     The present invention was achieved in view of the above-mentioned respects, and its object is to provide an improved image processing apparatus. 
     Further, it is an object of the present invention to provide an image processing system without anxieties of the pollution. 
     Further, it is an object of the present invention to provide an image processing system with a simple construction and of an easy maintenance. 
     Further, it is an object of the present invention to provide an image processing system which is always available to the user, and capable of rapid processing. 
     Further, it is an object of the present invention to provide an image processing apparatus which allows a photographed result desired by the user to be printed. 
     Further, it is an object of the present invention to provide an image processing apparatus which allows a failure of the apparatus to be detected at early time. 
     Further, it is an object of the present invention to provide an image processing system capable of printing both the color and black-and-white pictures. 
     Further, it is an object of the present invention to provide an image processing system which allows various functions to be implemented at low cost. 
     Further, it is an object of the present invention to provide an image processing system which allows various images to be printed. 
    
    
     Other objects and features of the present invention will be apparent from the following description and the drawings. 
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a block diagram of an image processing system in an example of the present invention. 
     FIG. 2 is an external view of the image processing system in the example. 
     FIG. 3 is a flowchart of the operation in a system control unit  16  as shown in FIG.  1 . 
     FIG. 4 is a flowchart of another operation in the system control unit  16  as shown in FIG.  1 . 
     FIG. 5 is a block diagram of an image processing system in another example. 
     FIG. 6 is a block diagram of a centralized supervisory system for making the centralized supervision of a plurality of image processing system. 
     FIG. 7 is a flowchart of the operation in a system control unit  16  as shown in FIG.  5 . 
     FIG. 8 is a table showing the signals indicating the states of a printer  18  as shown in FIG.  5 . 
     FIG. 9 is a specific circuit diagram of a communication unit  31  as shown in FIG.  5 . 
     FIG. 10 is a block diagram of an image processing system in another example. 
     FIG. 11 is a flowchart of the operation in a system control unit  16  as shown in FIG.  10 . 
     FIG. 12 is a view showing a mark indicating a print region displayed on a monitor  14 . 
     FIG. 13 is a flowchart of the printing as shown in FIG.  10 . 
     FIG. 14 is a view showing a result printed with a region specification as shown in FIG.  12 . 
     FIG. 15 is a block diagram of an image processing system in another example. 
     FIG. 16 is a flowchart of the operation in a system control unit  16  as shown in FIG.  15 . 
     FIG. 17 is a view showing a display screen on a monitor  14 . 
     FIG. 18 is a block diagram of an image processing system in another example. 
     FIG. 19 is a flowchart of the operation in a system control unit  16  as shown in FIG.  18 . 
     FIG. 20 is a block diagram of an image processing system in another example. 
     FIG. 21 is a block diagram of an image processing system in another example. 
     FIG. 22 is a configuration view of a rotation filter  75  as shown in FIG.  21 . 
     FIG. 23 is a flowchart of the image pick-up as shown in FIG.  21 . 
     FIG. 24 is a block diagram of an image processing system in another example. 
     FIG. 25 is a flowchart of the operation in a system control unit  16  as shown in FIG.  24 . 
     FIG. 26 is a block diagram of an image processing system in another embodiment. 
     FIG. 27 is a block diagram of an image processing system in another embodiment. 
     FIG. 28 is a view showing the movement of an image in the time direction. 
     FIG. 29 is a view showing a blurred image displayed on the monitor  14 . 
     FIG. 30 is a view showing the blurred image printed by a printer  18 . 
     FIG. 31 is a view showing the image stored in a first field of image storage unit  12 . 
     FIG. 32 is a view showing the image stored in a second field of image storage unit  12 . 
     FIG. 33 is a flowchart of the operation in a system control unit  16  as shown in FIG.  27 . 
     FIG. 34 is a flowchart of the operation in the system control unit  16  as shown in FIG.  27 . 
     FIG. 35 is a view showing detected movement vectors. 
     FIG. 36 is a view showing the image in the first field after the correction for the blurring. 
     FIG. 37 is a view showing the image in the second field after correction for the blurring. 
     FIG. 38 is a view showing a printed image image after the correction for the blurring. 
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
     The preferred embodiments will be described below in detail with reference to the drawings. 
     FIG. 1 is a block diagram of an image processing system in one example of the present invention.  11  is an image pick-up unit consisting of a video camera,  12  is an image storage unit constituted of a semiconductor memory, for example, for storing the image information from the video camera  11 ,  13  is a monitor output screen changeover switch,  14  is a monitor, and  15  is a power supply unit for supplying the power to each unit.  16  is a system control unit for controlling the operation of each unit, which is constituted of CPU, RAM, and ROM (not shown). The RAM is used as a work area for the CPU, and the ROM has written the contents of control operation or the message data to be displayed on the monitor.  17  is an operation unit for operating the system control unit, comprising a shutter button  17   a  for starting the storage of image, a print button  17   b  for starting the print of stored image, and a cancel button  17   c  for cancelling the stored image to reset the system to a photographing wait state.  18  is a video printer such as a thermal printer, or a bubble jet printer for discharging the ink by the use of the pressure of bubbles generated by the heat.  19  is a detector for detecting the input of a coin. 
     FIG. 2 is an external view of this example.  20  is a lighting for lighting an object, such as a fluorescent lamp.  21  is a coin slot. 
     A flowchart of the operation in the system control unit  16  of an electronic photo system having the above configuration is shown in FIG.  3 . If the coin detector  19  detects a coin, a coin insertion signal is sent to the system control unit  16  (step S 1 ). The system control unit  16  which has received the coin insertion signal sends a signal to the power supply unit  15  to start the supply of the electric power to each unit (step S 2 ). Next, the switch  13  is changed to the camera side to display an image being currently picked up directly on the monitor  14  (step S 3 ). If the shutter button  17   a  of the operation unit  17  is depressed (step S 4 ), the image being picked up at that time is stored as a still image into the image storage unit  12  (step S 5 ). 
     Next, the switch  13  is changed to the storage unit side to display the stored image on the monitor  14 , so that the user can confirm the image to be printed (step S 6 ). If the print button  17   b  of the operation unit  17  is depressed (step S 7 ), the stored image is printed with the video printer  18  (step S 8 ). After the completion of the print, a print termination signal is sent from the video printer  18  to the system control unit  17 , and further a signal is sent to the power supply unit  15  to turn off the supply of the power to each unit (step S 9 ). Then the operation is terminated. At step S 7 , if the cancel button  17   c , rather than the print button  17   b , is depressed, the operation proceeds to step S 10  to be placed in a storing wait state, while if the cancel button  17   c  is not depressed, the operation proceeds to step S 6  to be placed in a printing wait state (step S 10 ). 
     It will be appreciated that a photograph can be taken in a correct attitude such that if the shutter button  17   a  of the operation unit  17  is depressed in photographing, an image being currently picked up is stored under the control of the system control unit  16  when a predetermined count value is reached by counting up with a counter contained within the system control unit  16 . 
     It will be also appreciated that a photograph can be taken in a correct attitude such that the shutter button  17   a  of the operation unit  17  is disposed at the foot of the photographer to depress the shutter button  17   a  with his foot. Further, the flash photography can be implemented by the use of a flash lamp as the lighting  20 . 
     Thereby, it is possible to obtain a more favorable picture because of the effective measures against the pollution, the easy maintenance, a shortened time for the completion of a picture, and the savings of print cost and print sheets. 
     Another example will be described below. 
     FIG. 4 is a flowchart showing the operation of an image processing system in another example of the present invention. The block diagram of this example is the same as in FIG.  1 . This example allows the same picture to be printed on plural sheets. The steps S 1  to S 10  are the same as in FIG. 3, and the explanation will be omitted. After the stored image has been printed at step S 8 , a timer within the system control unit  16  is turned on (step S 11 ), and a message notifying whether or not the currently stored image should be further printed (e.g., “Insert a coin if one more sheet is printed”) is displayed on the monitor  14  (step S 12 ). If the coin is detected, the operation proceeds to step S 6  to be placed in a printing wait state (step S 13 ). If the coin is not detected at step S 13 , it is examined whether or not a predetermined time has passed with the timer of the system control unit  16  (step S 14 ). If the predetermined time has not passed at step S 14 , the operation proceeds to step S 12  to wait for the input of a coin, while if the predetermined time has passed, a signal is sent from the system control unit  17  to the power supply unit  15  to turn off the power supply for each unit (step S 15 ). Then the operation is terminated. 
     If the inserted coin is detected at step S 13 , the stored image is displayed on the monitor  14  (step S 6 ), and the operation is placed in a wait state for a print instruction signal of stored image (step S 7 ). 
     With this configuration, it is possible to print a plurality of pictures for a favorable image which has been once stored. 
     It will be appreciated that a plurality of pictures for a favorable image can be obtained in such a way that if the print button  17   b  of the operation unit  17  is depressed after photographing, the system control unit  16   a  makes the control so that a predetermined number of sheets are printed. 
     Next, another example of the present invention will be described. 
     FIG. 5 is a block diagram of an image processing system showing another example of the present invention.  11  to  19  are the same as in FIG.  1 . 
       30  is a sheet-fed unit,  31  is a communication unit for communicating with a control center via a telephone line when the accident occurs, and  32  is the telephone line. 
     FIG. 6 is a block diagram of a centralized supervisory system which makes the centralized supervision over a plurality of image processing systems.  40  is a communication unit for communicating with a plurality of image processing systems via the telephone line  32 , and  41  is a control unit for controlling the centralized supervisory system.  42  is a storage unit for storing the status of each image processing system, or map data indicating the location of the nearest available image processing system when the accident may occur in the image processing system.  43  is a monitor for displaying the status of each image processing system under the control of the control unit  41 . 
     A flowchart of the operation in the control unit  16  of the image processing system with the above configuration is shown in FIG.  7 . If the coin detector  19  detects a coin, a coin insertion signal is sent to the control unit  16  (step S 1 ). The control unit  16  which has received the coin insertion signal sends a signal to the power supply unit  15  to start the supply of the electric power to each unit (step S 2 ). The control unit  16  receives a status signal as shown in FIG. 8 from the printer  18  at predetermined intervals to determine whether or not the printer  18  is normally operating (step S 2 ). If there is no abnormality such as a shortage or jamming of paper at step S 20 , the normal control is continued, and the abnormality is checked at predetermined intervals. At the normal condition, the image picked up with the video camera  11  is displayed on the monitor  14  (step S 3 ), and if the shutter button  17   a  is depressed (step S 4 ), a picked up image upon depressing is stored as a still image (step S 5 ). And the stored image is displayed on the monitor  14  (step S 6 ). If the print button  17   b  of the operation unit  17  is depressed (step S 7 ), the stored image is printed by the video printer  18  (step S 8 ). After the completion of the print, a print termination signal is sent from the video printer  18  to the system control unit  17 , and further a signal is sent to the power supply unit  15  to turn off the supply of the power to each unit (step S 9 ). Then the operation is terminated. If the cancel button  17   c , rather than the print button  17   b , is depressed at step S 7 , the operation proceeds to step S 20  to be placed in a storing wait state, while if the cancel button  17   c  is not depressed, the operation proceeds to step S 6  to be placed in a printing wait state (step S 10 ). If there is any abnormality such as a shortage or jamming of paper at step S 20 , the inserted coin is repaid (step S 21 ), in which a proper code, a place code and an accident code for the image processing system are sent from the communication unit  31  to the centralized supervisory system (FIG. 3) within the control center (step S 22 ). 
     The control unit  41  of the centralized supervisory system, which has received the accident contents displays the proper code, the place name and the accident contents for the abnormal image processing system on the monitor  43 . And the status content of the image processing system within the storage unit  42  is rewritten into a disenabled state to retrieve the nearest available image processing system. Based on a retrieved result, map data indicating the location of installed image processing system which has been prestored within the storage unit  42  is sent through the communication unit  40  to the image processing system which has caused the accident. 
     A schematic circuit configuration of the communication unit  31  is shown in FIG. 9. 55 is an accident informing control signal, in which if this signal is turned on, the CPU  53  turns on a line connection control signal  54  to instruct a network control unit (NCU)  50  to connect the line. Next, the CPU  53  reads a telephone number of the control center prewritten in a nonvolatile memory such as EEPROM  56 , and instructs a DTMF generator  54  to output a DTMF (dual tone multi frequency) code corresponding to its number in sequence by the number in accordance with the specification of the line. If the line is connected to the control center, the centralized supervisory system automatically responds thereto so that a sinusoidal wave signal of 1 KHz is sent to the transmission side. A band pass filter (BPF)  58  of the communication unit  31  extracts the sinusoidal wave of 1 KHz, and an A/D converter  59  converts the detected level into the digital form. The CPU  53  judges that the line is connected to the control center if the digital value is equal to or more than a predetermined value, so that the proper code, the place code of installation, and the code of accident contents for the image processing system are read out in sequence from the EEPROM  56 , and the DTMF code is sent along with an error correction code added at the last. If they are normally received in the control center, the centralized supervisory system generates a sinusoidal wave signal of 1 KHz to notify the transmission side of the normal reception. The communication unit  31  turns off the line if the 1 KHz signal is received. The centralized supervisory system displays a booth number, an installation place name, and the accident contents on the monitor  43  to be notified to the supervisor. 
     The communication unit  16  of the image processing system receives map data of the nearest available image processing system from the centralized supervisory system and stores them into the image storage unit  12  (step S 23 ). The map is displayed on the monitor  14  (step S 24 ), and if the print button of the operation unit  17  is depressed (step S 25 ), it is checked whether or not there is any print sheet (step S 26 ), where if there is any print sheet, the received data is printed (step S 27 ). The control operation at steps S 24  to S 27  is continued if the image processing system is abnormal, and upon returning to the normal condition, the operation is reset to perform the control from step S 1 . 
     Note that the available image processing systems can be output with the expression of words. 
     In this way, as the system can inform the control center of the abnormality occurring in the image processing system, if any, the periodic round inspection for the image processing system can be dispensed with. As the maps for other available image processing systems can be displayed, the user can find out the available image processing system without searching about. As the coin is repaid even if any abnormality may occur during the control, there is no loss in spending the money. 
     Next, another example will be described. 
     FIG. 10 is a block diagram of an image processing system in another example of the present invention.  11  is a pick-up unit consisting of a video camera,  12  is an image storage unit constituted of a semiconductor memory, for example, capable of reading and writing the object information from the video camera  11 , the image storage unit being capable of storing the 640 pixels in the x direction and the 480 pixels in the y direction. The read area for the print can be represented by a rectangle formed by S point (XS, YS) and E point (XE, YE) as the diagonal. XS, YS, XE, YE represent the addresses in the image storage unit, respectively.  13  to  19  are the same as in FIG. 1. 17 d  is a region shift button for shifting the print region in the image. By depressing the region button, XS, YS, XE, YE as above described will be increased or decreased. XS, YS, XE, YE are initialized when the power is turned on. XS, XE are incremented by one if the region shift button  17   d  of the right direction is depressed, while they are decremented by one if the region shift button  17   d  of the left direction is depressed. YS, YE are decremented by one if the region shift button  17   d  of the upper direction is depressed, while they are incremented by one if the region shift button  17   d  of the lower direction is depressed. 
       61  is a mark generator for generating a mark indicating the print region, in which along with that mark, the image is displayed on the monitor  14 . 
     A flowchart of the operation in the system control unit  16  of an electronic photo system with the above configuration is shown in FIG.  11 . If the coin detector  19  detects a coin, a coin insertion signal is sent to the control unit  16  (step S 1 ). The system control unit  16  which has received the coin insertion signal sends a signal to the power supply unit  15  to start the supply of the electric power to each unit (step S 2 ). If the supply of the electric power is started, the switch  13  is changed to the camera side to display a compounded image of an image being currently picked up with the video camera  11  and a mark  62  generated by the mark generator  61  on the monitor  14  (step S 30 ). At this time, the mark generator receives data (XS, YS, XE, YE) representing the print region from the system control unit  16  as previously described, and generates the mark  62  indicating the region as shown in FIG.  12 . The position of the mark at the start-up of the power supply can be determined by the initial value which the ROM of the system control unit  16  has stored. The photographer shifts the mark  62  to a position of preferred picture composition by operating the region shift button  17   d  while seeing the monitor  14 . If the region shift button  17   d  is depressed (step S 31 ), the system control unit  16  increments or decrements the position data (XS, YS, XE, YE) in accordance with its direction and amount (step S 32 ). The data changed at step S 32  is sent to the mark generator  61  to generate the mark in accordance with its data, and the operation proceeds to step S 30 , where a compounded image of an image being currently picked up with the video camera  11  and a mark  62  generated by the mark generator  61  is displayed on the monitor  14 . If the region shift button  17   d  is not depressed at step S 31 , the operation proceeds to the next step. If the shutter button  17   a  of the operation unit  17  is depressed (step S 4 ), the image being picked up at that time is stored in the image storage unit  12  (step S 5 ). Then the switch  13  is changed to the storage unit side, and the stored image is displayed on the monitor  14  to allow the photographer to confirm the image to be printed (step S 6 ). If the print button  17   b  of the operation unit  17  is depressed (step S 7 ), the image within the print region is printed (step S 8 ). 
     The print at step S 8  will be described in detail with reference to FIG. 13. x, y represents the address for reading the image data from the image storage unit  12 . To begin with, x is set to XS and y is set to YS (steps S 41 , S 42 ). Next, the image data at the address (x,y) is sent to the video printer  18  and printed (step S 43 ). And x is incremented by one (step S 44 ), and it is checked whether or not x&gt;XE is true (step S 45 ). If x≦XE at step S 45 , the operation proceeds to step S 43  to increment x. If x&gt;XE, a line feed signal is sent to the video printer  18  (step S 46 ) to increment y by one (step S 47 ). And it is checked whether or not y&gt;YE is true (step S 48 ). If y≦YE at step S 48 , the operation proceeds to step S 41 , where x is reset to XS, and the print operation is continued. If y&gt;YE, a print termination signal is sent to the video printer  18  to terminate the print. As a result of the print, the image as shown in FIG. 14 can be obtained. 
     After the completion of the print, a print termination signal is sent from the video printer  18  to the system control unit  17 , and further a signal is sent to the power supply unit  15  to turn off the supply of the power to each unit (step S 9 ). Then the operation is terminated. If the cancel button  17   c , rather than the print button  17   b , is depressed at step S 7 , the operation proceeds to step S 30 , where a compounded image of the image from the video camera  11  and the mark  62  is displayed, while if the cancel button  17   c  is not depressed, the operation proceeds to step S 6  to be placed in a printing wait state (step S 10 ). 
     It should be noted that the picture composition can be confirmed with a simple configuration in which a fixed mark indicating the print region of respective print size is displayed on the screen of the monitor  14 , without using the mark generator  61  and the region movement button  17   d , and with the position data of print region fixed. 
     It will be appreciated that a photograph can be taken in a correct attitude in such a way that if the shutter button  17   a  of the operation unit  17  is depressed in photographing, the image being currently picked up is stored under the control of the system control unit  16  when a predetermined count value is reached by counting up with a counter contained within the system control unit  16 . 
     It is also possible to change the print size by inputting the size data in addition to the position data of the print region. 
     In this way, as the user can confirm the photographed result before the picture is printed, a more favorable picture can be obtained while eliminating the wastes of photographing fee or print sheet. Furthermore, as a movable print region mark is displayed on the monitor, the composition of picture can be confirmed so as to be changed without moving the picture. 
     Next, another example of the present invention will be described. 
     FIG. 15 is a block diagram of an electronic photo system in one example of the present invention.  11  is an image pick-up unit consisting of a video camera, and  12  is an image storage unit constituted of a semiconductor memory, for example, for storing the image information from the video camera  11 .  13  is a monitor output screen changeover switch,  14  is a monitor, and  15  is a power supply unit for supplying the power to each unit.  16  is a system control unit for controlling the operation of each unit, which is constituted of CPU, RAM, and ROM (not shown). The RAM is used as a work area for the CPU, and the ROM has written the contents of control operation or the message data for displaying on the monitor.  17  is an operation unit for operating the system control unit  16 , comprising a shutter button  17   a  for starting the storage of image, and a print image select button  17   e  for specifying a stored image to be printed among four stored images which have been stored in the image storage unit  12 .  18  is a video printer such as a thermal printer, or a bubble jet printer for discharging the ink by the use of the pressure of bubbles generated by the heat.  19  is a detector for detecting the input of a coin. 
     A flowchart of the operation in the system control unit  16  of the electronic photo system having the above configuration is shown in FIG.  16 . If the coin detector  19  detects a coin, a coin insertion signal is sent to the system control unit  16  (step S 1 ). The system control unit  16  which has received the coin insertion signal sends a signal to the power supply unit  15  to start the supply of the electric power to each unit (step S 2 ). Next, the switch  13  is changed to the camera side to display an image being currently picked up by the video camera  11  directly on the monitor  14  (step S 3 ). If the shutter button  17   a  of the operation unit  17  is depressed (step S 4 ), the image being picked up by the video camera  11  is displayed for a predetermined time (steps S 50 , S 51 ), and the picked up image is stored into the image storage unit  12  (step S 52 ). Next, the switch  13  is changed to the storage unit side to cause the stored image to be displayed on the monitor  14  for a predetermined time, so that the photographer can confirm the image (steps S 53 , S 54 ). The count-up is made every time the system control unit  16  stores the image, in which it is checked whether or not the count-up has been made four times, or four images have been stored (step S 55 ). At step S 55 , the counter is below four, the operation proceeds to step S 50  to store the image, while if the counter is equal to 4, the monitor is divided into four display sections as shown in FIG. 17 to display collectively four images stored in the image storage unit  12  on the monitor (step S 56 ). By seeing a collectively displayed monitor screen, the photographer selects the image to be printed and then depresses the print image select button  17   b  of the operation unit  17 . If the print image select button  17   b  is depressed to specify the image to be printed, its specified image is printed (step S 57 ). After the completion of the print, a print termination signal is sent from the video printer  18  to the system control unit  17 . The system control unit  17  which has received the print termination signal sends a signal to the power supply unit  15  to turn off the supply of the power to each unit (step S 9 ). Then the operation is terminated. 
     The image storage unit  12  can store four images in this example, but the present invention is not limited to four images. It may be sufficient to store a plurality of images. 
     It will be appreciated that the print image can be specified by depressing the print button while the stored image is being displayed in a repetitive operation of image pick-up, storage and display in series. 
     In this way, by storing a picked-up image of the camera and displaying the stored image in succession, the user can correct for his pose to be more excellent. Furthermore, as a plurality of images are stored and collectively displayed, and the image specified by the user is printed, the user can select a more favorable picture by the comparison between a plurality of images while eliminating the wastes of photographing fee or print sheet. 
     Next, another example of the present invention will be described below. 
     FIG. 18 is a block diagram of an image processing system in another example of the present invention.  11  is a video camera (for picking up a color image and outputting a color image signal),  12  is an image storage unit constituted of a semiconductor memory, for example, for storing the image information from the video camera  11 ,  13  is a monitor output screen changeover switch,  14  is a monitor, and  15  is a power supply unit for supplying the power to each unit.  16  is a system control unit for controlling the operation of each unit, which is constituted of CPU, RAM, and ROM (not shown). The RAM is used as a work area for the CPU, and the ROM has written the contents of control operation or the message data to be displayed on the monitor.  17  is an operation unit for operating the system control unit  16 , comprising a shutter button  17   a  for starting the storage of image, a print button  17   b  for starting the print of stored image, a cancel button  17   c  for canceling the stored image to reset the system to a photographing wait state, and a white-and-black/color select button  17   f  for selecting the white-and-black print or the color print.  18  is a video printer such as a thermal printer, or a bubble jet printer for discharging the ink by the use of the pressure of bubbles generated by the heat.  19  is a detector for detecting the input of a coin. 
       70  is an image convertor for converting the color image information read out from the image storage unit  12  into the white-and-black image information, and  71  is a print image changeover switch for changing the video printer  18  to print the color or white-and-black image. 
     A flowchart of the operation in the system control unit  16  of an electronic photo system having the above configuration is shown in FIG.  19 . If the coin detector  19  detects a coin, a coin insertion signal is sent to the system control unit  16  (step S 1 ). The system control unit  16  which has received the coin insertion signal sends a signal to the power supply unit  15  which starts the supply of the electric power to each unit (step S 2 ). Next, the switch  13  is changed to the camera side to display an image being currently picked up by the video camera  11  directly on the monitor  14  (step S 3 ). If the shutter button  17   a  of the operation unit  17  is depressed (step S 4 ), the image being picked up at that time is stored as a still image into the image storage unit  12  (step S 5 ). 
     Next, the switch  13  is changed to the storage unit side to cause the stored image to be displayed on the monitor  14 , so that the photographer can confirm the image to be printed (step S 6 ). If the print button  17   b  of the operation unit  17  is depressed, a determination is made whether the instruction is for a white-and-black print or color print (step S 60 ). If the white-and-black is selected with the white-and-black/color select button  17   f , the system control unit  16  changes the print image changeover switch  71  to the side of the image converter  70 , which converts the color image information from the image storage unit  12  into the white-and-black image information which is then output to the video printer  18  (step S 61 ). If the color is selected with the white-and-black/color select button  17   f  at step S 60 , the system control unit  16  changes the print image changeover switch  71  to the opposite side of the image converter  70 , so that the image storage unit  12  and the video printer  18  are directly connected, whereby the color image information from the image storage unit  12  is directly output to the video printer  18  (step S 62 ). Based on the image information sent therein, the color or white-and-black image is printed with the video printer  18  (step S 8 ). 
     After the completion of the print, a print termination signal is sent from the video printer  18  to the system control unit  17 , and further a signal is sent to the power supply unit  15  to turn off the supply of the power to each unit (step S 9 ). Then the operation is terminated. If the cancel button  17   c , rather than the print button  17   b , is depressed at step S 7 , the operation proceeds to step S 3  to be placed in a storing wait state, while if the cancel button  17   c  is not depressed, the operation proceeds to step S 6  to be placed in a printing wait state (step S 10 ). 
     FIG. 20 is a block diagram of an improved system of FIG. 18. A different point from FIG. 18 is that the image converter  70  and the print image changeover switch  71  are connected at the front stage of the switch  13 . Thus, if the white-and-black is selected with the white-and-black/color select button  17   f , the white-and-black image is displayed on the monitor  14 , while if the color is selected, the color image is displayed on the monitor  14 . Hence, both the color and white-and-black images can be printed to allow the user to obtain a picture in accordance with his desire. Further, the white-and-black or color image to be printed can be confirmed on the monitor. 
     Next, another example of the present invention will be described below. 
     FIG. 21 is a block diagram of an image processing system in another example of the present invention.  11  is a monochrome video camera which issues a synchronizing signal in synchronism with the read out of an image.  12  to  19  are the same as in FIG. 1. 75 is a rotation filter,  76  is a motor control unit, and  77  is a stepping motor. FIG. 22 shows a profile of the rotation filter. 
     R, G and B are windows having red, green and blue transmission filters mounted, respectively, and T is an achromatic transparent window. The video camera  11  picks up an image through those windows. 
     With such a configuration, if the white-and-black is selected with the white-and-black/color select button on the operation unit  17 , the system control unit  16  outputs a signal indicating its selection to the motor control unit  76 , which controls the driving of the motor  77  so that the T window of the rotation filter  75  is positioned in front of the video camera  11 , in which the image is picked up through the T window with the rotation filter held in its state (steps S 71 , S 72 ). On the other hand, if the color is selected with the white-and-color select button on the operation unit  17 , the system control unit  16  outputs a signal indicating its selection to the motor control unit  76 . The motor control unit  76  controls the driving of the motor  77  in synchronism with the synchronizing signal output from the video camera  11 , so that R, G and B windows of the rotation filter are positioned in front of the video camera  11  in sequence. As a result, the image passing through the R, G and B filters from the video camera  11  is read out in sequence (steps S 73 , S 74 , S 75 ), in which the system control unit  16  operates on the color image information by composing the color images passing through respective filters to obtain a color image. Thereby, the white-and-black and color image can be printed to provide a picture in accordance with a desire of the user. As the white-and-black video camera is used, a low cost image processing system can be implemented. 
     Another example of the present invention will be described below. 
     FIG. 25 is a block diagram showing another example of the present invention.  11  is an image pick-up unit consisting of a video camera,  80  is an external video input terminal,  81  is a video input select changeover switch,  82  is an external input terminal connection detector unit,  12  is an image storage unit constituted of a semiconductor memory, for example, for storing the information of an object from the video camera  11 ,  13  is a monitor output screen changeover switch,  14  is a monitor,  15  is a power supply unit for supplying the electric power to each unit,  16  is a system control unit for controlling the operation of each unit,  17  is an operation unit for operating the system control unit  16 ,  18  is a video printer which is a print output unit, and  19  is a detector for detecting the input of a coin. 
     A flowchart of the operation in the system control unit  16  of an electronic photo system having the above configuration is shown in FIG.  25 . If the coin detector  19  detects a coin, a coin insertion signal is sent to the system control unit  16  (step S 1 ). The system control unit  16  which has received the coin insertion signal sends a signal to the power supply unit  15  to start the supply of the electric power to each unit (step S 2 ). Next, the external terminal connection detector unit  22  detects whether or not the video input is connected to the external video input terminal. If the external terminal is connected (step S 81 ), the video input select changeover switch  81  is changed to the side of the external video input terminal  80  to input an image signal from the external video input terminal  80  (step S 82 ). If the external terminal is not connected at step S 81 , the video input select changeover switch  81  is changed to the side of the video camera  11  to input an image signal from the video camera  11  (step S 83 ). And the input image selected at steps S 81  to S 83  is displayed (step S 3 ). If the shutter button  17   a  of the operation unit  17  is depressed (step S 4 ), the image being picked up at that time is stored as a still image into the image storage unit  12  (step S 5 ). 
     Next, the switch  13  is changed to the storage unit side to cause the stored image to be displayed on the monitor  14  so that the photographer can confirm the image to be printed (step S 6 ). If the print button  17   b  of the operation unit  17  is depressed (step S 7 ), the stored image is printed by the video printer  18  (step S 8 ). After the completion of the print, a print termination signal is sent from the video printer  18  to the system control unit  17 , and further a signal is sent to the power supply unit  15  to turn off the supply of the power to each unit (step S 9 ). Then the operation is terminated. If the cancel button  17   c , rather than the print button  17   b , is depressed at step S 7 , the operation proceeds to step S 3  to be placed in a storing wait state, while if the cancel button  17   c  is not depressed, the operation proceeds to step S 6  to be placed in a printing wait state (step S 10 ). 
     It will be appreciated that as shown in FIG. 26, by providing a synchronizing signal detector to issue a detection signal if it detects a synchronizing signal for the input video signal at the external video input terminal  80 , the system control unit  16  can control the video input select switch  81  to be changed to the side of the external video input terminal  80  upon receiving the detection signal from the synchronizing signal detector  83 . 
     It will be also appreciated that the image recorded on a video tape can be printed by providing a video tape deck, instead of the external video input terminal  80 . 
     In this way, since images other than those picked up by a photo booth system can be printed, the utilization range for the user can be extended. 
     Next, another example of the present invention will be described below. FIG. 27 is a block diagram of an image processing system in another example of the present invention.  11  to  19  are the same as in FIG. 1. 85 is a decision circuit for deciding whether or not the image stored in the image storage unit  12  is blurred,  86  is a character generating circuit for generating the character for use in displaying a message on the monitor  14 ,  87  is a signal amplifier for amplifying a voice signal for the message output from the system control unit  16 , and  88  is a speaker for outputting the voice signal amplified by the signal amplifier as the voice. 
     Referring now to FIGS. 28 to  32 , a detection method with the blurring detector  85  will be described below. The system control unit  16  performs the control so that if the shutter button  17   a  is depressed, the image from the video camera  11  at the times t 1 , t 2  are stored in a first field A and a second field B of the image storage unit  12 , respectively. 
     If the shutter button  17   a  is depressed while an object is moving right upward, the image stored in the second field memory is equal to an image to which the object of the image stored in the first field memory has moved right upward, as shown in FIG.  28 . Here, if the image stored in the image storage unit  12  is directly output to the monitor  14 , a blurred image is displayed as shown in FIG.  29 . If the image stored in the image storage unit  12  is output to the printer  18 , the blurred image is also printed as shown in FIG.  30 . 
     Since the print of blurred image is not useful, as shown, a determination is made whether or not the blurred image may be printed by detecting the movement vector based on the images stored in the first and second field memories. First, a block composed of m=n×n pixels is set in the image of the first and second fields A and B as shown in FIGS. 31 and 32. The value representing the correlation between the block of interest A and the block of interest B can be obtained from the values of pixel Ai within a block of interest A in the first field A and the values of pixel Bi within a block of interest B in the second field B, by using the following expression (see Japanese Patent Publication Gazette No. 2-52914).        C   =       ∑   1   m               Ai   -   Bi                                   
     Note that            ∑     i   =   1     m          x   i       =       x   1     +     x   2     +     x   3     +     …                   x     m   -   1         +     x   m                              
     With the above expression, the correlation value C between the block of interest A, and the block of interest B at the position corresponding to the block of interest A with the eight blocks around the block of interest B can be obtained for each block, in which the position of the block having the least correlation value C is stored, and it is decided that the blurring occurred in photographing if the correlation value C between the blocks other than the block of interest among the nine blocks in the second field and the block of interest A is least, whereby a blurring detection signal is output to the system control unit  16 . Also, when the correlation value C between the block of interest B and the block of interest A is least, the correlation value C and a preset constant value C B  are compared, in which if C&gt;C B , the blurring detection signal is output to the system control unit  16 . The operation of detecting the blurring by obtaining the correlation value C between the block of interest A and each block among the nine blocks in the second field is performed for all blocks in the first field by changing the block of interest A from A( 0 ,  0 ) block to A( 1 ,k) block. 
     Note that it is possible to shorten the calculation time by limiting the block to be operated for detecting the movement vector only to the print range of printer. On the contrary, the unwasteful printing is enabled by aligning the print range with an integral multiple of the operation block for the movement vector. 
     Next, a flowchart of the operation in the system control unit  16  of an electronic photo system with the above configuration is shown in FIGS. 33 and 34. The steps S 1  to S 7  and S 10  are the same as in FIG.  3 . If the print button  17   b  is depressed at step S 7 , the detection of the blurring for the stored image as previously described is performed by the blurring detector  85 . At step S 85 , if the blurring detector  85  detects the blurring of stored image and the system control unit  16  receives a blurring detection signal from the blurring detector  85 , a message such as “Blurring” from the character generating circuit  86  is output to the monitor  14  to inform the user of the blurring. At the same time, the chime sound or the voice such as “Blurring” is output via the signal amplifier  87  from the speaker  88  (step S 87 ). If the print button  17   b  is depressed (step S 88 ), after informing the user of the blurring, the stored image is printed by the video printer  18  (step S 8 ). After the completion of the print, a print termination signal is sent from the video printer  18  to the system control unit  17 , and further a signal is sent to the power supply unit  15  to turn off the supply of the power to each unit (step S 9 ). Then the operation is terminated. 
     At step S 88 , if the print button  17   b  is not depressed, the operation proceeds to step S 3 , where a further photograph is taken again without printing of the blurred image. 
     At step S 86 , if there is no blurring, the operation proceeds to step S 8 , where the normal print operation is performed. 
     In this way, if there is any blurring in photographing, the user is alarmed before the image is printed, so that the false picture in photographing is never printed. 
     Next, another example of the present invention will be described below. 
     This example is one of correcting for the blurring of stored image, if any, by further developing the method of detecting the movement vector as shown in FIGS. 31 and 32. 
     As previously described with the image processing system of FIG. 27, if the movement vector is detected for each block in the first field, the movement vector for each block is as shown in FIG. 35 so that the blurred block can be detected. The blurring detector  85  writes the image information of block having the blurring dsetected in the first field to the position corresponding to the block of the first field in the second field, as shown in FIGS. 36 and 37 (in the figure,  1  indicates the first field image, and  2  indicates the second field image). As a result, the image in the first field remains unchanged and the image in the second field is the first field image for blurred image or the second field image for unblurred block, as shown in FIG. 38, so that the image without blurring can be printed. 
     In this way, if the blurring may occur in photographing, the blurring can be corrected, and the picture without blurring can be obtained.