Backside illumination image sensor, operating method thereof, image processing system and method of processing image using the same

A backside illumination image sensor comprising:

• an image signal generator, the image signal generator including,
• a plurality of pixels, each pixel being one of a plurality of pixel types and including a photodiode configured to accumulate photogenerated charges corresponding to light incident on a semiconductor substrate, an amount of the accumulated photogenerated charges varying based on an effective capacitance of the respective photodiode, and
• a plurality of transfer lines, each transfer line configured to transfer a transfer control signal to a gate of the transfer transistor of a respective one of the pixels, the transfer controls signal for each pixel type producing an effective integration time in the respective pixel;
• and
• an image signal processor configured to control the image signal generator to generate the transfer control signals.