Pixel mixing apparatus and operation control method thereof

Image before pixel mixing is to find whether the high-frequency ones. In partial image 11 obtained from the imaging element of the Bayer array, and Gr pixels representing a green component of the row of the R pixels representing a red component, a distinction is made between the Gb pixels representing green components of the row of B pixels representing blue components that. A distinguished Gr pixels to the Gb between pixels are brought separately to pixel mixing. As long as the image before the pixel mixing of the high-frequency component, it is different from the level of the level and Gb pixels Gr pixel after the pixel mixture. And a level of level and Gb pixels Gr pixel after the pixel mixture, seen whether the image before the pixel mixing of the high frequency components.