Abstract:
A method for updating pictures asynchronously is provided. The method comprises: extracting parameter values of a selected picture; defining extracted parameter values as standard parameter values; and adjusting parameter values of other pictures according to the standard parameter values.

Description:
TECHNICAL FIELD 
       [0001]    The disclosure relates to a digital photo frame for adjusting picture parameter values and method thereof. 
       DESCRIPTION OF RELATED ART 
       [0002]    Digital photo frames are configured for displaying digital images without having to print them, thereby playing an important role in our everyday lives. As advances in microprocessor and other technologies continue to improve the performance of various electronic components, digital photo frames become more compact and powerful, thereby gradually replacing traditional picture frames. Therefore, digital photo frames have become increasingly popular in recent years. Digital photo frames adjust picture parameter values in order to display pictures with a better effect. However, it is inconvenient for users to configure each parameter value of each picture in order to obtain a better display effect. Therefore, what is needed is a digital photo frame capable of adjusting picture parameter values easily and method thereof. 
       SUMMARY 
       [0003]    A digital photo frame for adjusting picture parameter values is provided. The digital photo frame includes a memory and a processor, wherein the memory is configured for storing pictures and parameter values of each of the pictures. The processor is connected with the memory and includes a parameter extracting module, a reading module, and a parameter adjusting module. The reading module is configured for obtaining pictures from the memory. The parameter extracting module is configured for extracting parameter values of a selected picture and defining the extracted parameter values as standard parameter values. The parameter adjusting module is configured for adjusting parameter values of other pictures according to the standard parameter values. 
         [0004]    Other advantages and novel features will be drawn from the following detailed description of the preferred embodiment with references to the attached drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0005]    The components of the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of a digital photo frame. Moreover, in the drawings, like reference numerals designate corresponding parts throughout several views. 
           [0006]      FIG. 1  is a block diagram of a digital photo frame in accordance with an exemplary embodiment. 
           [0007]      FIG. 2  is a flowchart for a method of adjusting picture parameter values in accordance with an exemplary embodiment. 
       
    
    
     DETAILED DESCRIPTION OF EMBODIMENTS 
       [0008]      FIG.1  is a block diagram of a hardware infrastructure of a digital photo frame in accordance with an exemplary embodiment. The digital photo frame includes at least one input unit  11 , a processor  12 , a memory  13 , and a screen  14 . 
         [0009]    The memory  13  is configured for storing pictures and parameter values of each of the pictures. The input unit  11  is configured for selecting pictures. For example, when the screen  14  displays a picture that a user likes, the user can select the picture via the input unit  11 . The processor  12  is electrically connected with the input unit  11 , the memory  13 , and the screen  14 . The processor  12  includes a parameter extracting module  121 , a reading module  122 , and a parameter adjusting module  123 . The parameter extracting module  121  is configured for extracting parameter values of a selected picture and defining the extracted parameter values as standard parameter values. The parameter values include, but are not limited to, at least one of a proportion value, a brightness value, a contrast value, a color value, or a display angle value. In addition, if the memory  13  does not store the standard parameter values, the parameter extracting module  121  stores the extracted parameter values in the memory  13  as the standard parameter values. If the standard parameter values exist in the memory  13 , the parameter extracting module  121  substitutes the extracted parameter values for the existing standard parameter values. The reading module  122  is configured for obtaining the picture from the memory  13 . The parameter adjusting module  123  is configured for adjusting parameter values of other pictures according to the standard parameter values. The other pictures can either be pictures to be displayed or all pictures stored in the memory  13 . Therefore, in an exemplary embodiment, the parameter adjusting module  123  adjusts parameter values of the pictures to be displayed automatically according to the standard parameter values. In another exemplary embodiment, the parameter adjusting module  123  adjusts parameter values of all the pictures stored in the memory  13  automatically according to the standard parameter values. When the parameter extracting module  121  extracts new parameter values, the parameter extracting module  121  further generates a prompt to remind the user whether to define the extracted parameter as the standard parameter values. If the parameter extracting module  121  does not receive a response to the prompt in a predetermined time period, the parameter extracting module  121  does not alter the standard parameter values. If the parameter extracting module  121  receives the response in the predetermined time period, the parameter extracting module  121  defines the extracted parameter values as the standard parameter values. The parameter adjusting module  123  adjusts parameter values of other pictures according to the defined standard parameter values. 
         [0010]    The digital photo frame further provides a special key for activating the digital photo frame to enter a picture parameter value adjustment mode. The digital photo frame can also provide a menu item for activating the digital photo frame to enter the picture parameter value adjustment mode. 
         [0011]      FIG. 2  is a flowchart illustrating a method of adjusting picture parameter values applied in the digital photo frame of  FIG. 1  in accordance with an exemplary embodiment. 
         [0012]    In step S 201 , after the digital photo frame enters the picture parameter value adjustment mode though the special key or the menu item, the user selects the picture to be displayed on the screen  14  via the input unit  11 . 
         [0013]    In step S 202 , the parameter extracting module  121  extracts the parameter values of the selected picture. 
         [0014]    In step S 203 , the parameter extracting module  121  defines the extracted parameter values as the standard parameter values. 
         [0015]    In step S 204 , the parameter adjusting module  123  adjusts the parameter values of other pictures according to the defined standard parameter values. The other pictures can be pictures to be displayed or all pictures stored in the memory  13 . 
         [0016]    Furthermore, in step S 203 , the parameter extracting module  121  can further display the prompt to remind the user whether to define the extracted parameter values as the standard parameter values. If the parameter extracting module  121  receives the response to the prompt, the parameter extracting module  121  defines the extracted parameter values as the standard parameter values. If the parameter extracting module  121  does not receive the response to the prompt, the parameter extracting does not alter the standard parameter values. 
         [0017]    Although the present invention has been specifically described on the basis of the exemplary embodiment thereof, the invention is not to be construed as being limited thereto. Various changes or modifications may be made to the embodiment without departing from the scope and spirit of the invention.