ADAPTIVE ANALYZER OF SENSITIVITY DIFFERENCE OF SAME COLOR PIXELS AND ADAPTIVE CORRECTOR OF SENSITIVITY DIFFERENCE OF SAME COLOR PIXELS

摘要

According to an embodiment, an adaptive analyzer of sensitivity difference of same color pixels analyzes a sensitivity difference of same color pixels of an image sensor. The same color pixels are divided into first and second groups. The adaptive analyzer includes an accumulator, a calculator, a correction ratio controller and a memory. The accumulator is configured to cumulatively add pixel values of pixels in the first group and pixel values of pixels in the second group per macro block, respectively, on an image captured in the image sensor. The calculator is configured to calculate a ratio between a cumulatively added value of the pixels in the first group and a cumulatively added value of the pixels in the second group in the macro block. The correction ratio controller is configured to set a correction ratio for the sensitivity difference based on the ratio per macro block.