Patent ID: 8521230

Claim:
A mobile telephone comprising a portable casing including an image display surface of an image display apparatus arranged on a front surface thereof and an image pickup apparatus arranged on a rear surface thereof, comprising: a state detecting unit that detects that the casing is becoming closer to an object and that the casing has been placed on the object; a photographing control unit that operates the image pickup apparatus at least once after it is detected that the casing is becoming closer to the object and before it is detected that the casing has been placed on the object; a color conversion processing unit that performs a color conversion process for converting a color of each of a part or all pixels forming an image signal obtained from the image pickup apparatus before it is determined that the casing has been placed on the object in accordance with a predetermined conversion rule on the image signal; an image signal storing unit that stores one or a plurality of color-converted image signals obtained from the color conversion processing unit; and a call/mail reception image display processing unit that, when an incoming call or mail is received after it is detected that the casing has been placed on the object, outputs one of the one or plurality of color-converted image signals stored in the image signal storing unit to the image display apparatus to display a color-converted image on the image display surface of the image display apparatus.