Compensation method for removing image noise

A compensation method for removing an image noise, adapted to compensate for noises generated by Bayer pattern color interpolation, the compensation method comprising:

• selecting a partial region in the Bayer pattern to set a selection region;
• selecting a plurality of color units from the selection region one by one, wherein each of the color units at least comprises a green pixel, a red pixel, and a blue pixel;
• performing a first color weight adjustment on the green pixel, so as to generate a recovered green filter parameter;
• performing a second color weight adjustment on the red pixel by using the recovered green filter parameter, so as to generate a recovered red filter parameter;
• performing a third color weight adjustment on the blue pixel by using the recovered green filter parameter and the recovered red filter parameter, so as to generate a recovered blue filter parameter;
• and
• performing a color compensation method on a pixel at a corresponding position according to the recovered green filter parameter, the recovered red filter parameter, and the recovered blue filter parameter.