of the same image sensor, and method for operating the image processing system with the same

The image sensor (100) includes a pixel array (110) having a plurality of unit pixels, each unit pixel (120) comprises a single transistor and a photodiode (133), which is connected to a body of the single transistor; a line driver block (160), which is configured to allow a plurality of rows in the pixel array (110) to enter into a read mode, and a read-out block (190) to, which is configured to scan a pixel signal and amplify which is outputted from each of a plurality of unit pixels (120) which is included in the line, which has occurred in the read mode.