Patent ID: 8385682

Claim:
An electronic device comprising: a CMOS type image sensor; a plurality of light emitting elements; a circuit; a shutter; and operation keys, wherein the CMOS type image sensor is formed on a single crystal substrate, wherein the CMOS type image sensor comprises a pixel portion comprising a pixel, wherein the pixel comprises a photoelectric conversion element, a first transistor, and a second transistor, wherein the photoelectric conversion element is electrically connected to a gate of the first transistor, wherein the gate of the first transistor is electrically connected to one of source and drain of the second transistor, wherein the CMOS type image sensor is configured to obtain a first image through the photoelectric conversion element, wherein the circuit is configured to calculate a histogram of the first image, wherein the circuit is configured to calculate a variance of the first image, wherein the circuit is configured to calculate a standard deviation of the first image, wherein the circuit is configured to change the first image to a second image, and wherein the plurality of light emitting elements are configured to display the second image.