An image processing method for converting a color block image into a first imitating image, wherein the color block image comprises a plurality of image-pixel-groups arranged in a predetermined color array pattern, wherein each of the plurality of image-pixel-groups comprises a plurality of original pixels having a same color and being adjacent to each other; wherein the first imitating image comprises a plurality of imitating pixels arranged in the predetermined color array pattern; and wherein for each of the plurality of imitating pixels, the plurality of original pixels of a first image-pixel-group of the plurality of image-pixel-groups comprise a related pixel corresponding to a position of each of the plurality of imitating pixels; wherein the image processing method comprises: for each of the plurality of imitating pixels as a current pixel (R3'3' or R5'5'), determining whether a color of the current pixel (R3'3' or R5'5') is same as a color of the related pixel (R33 or B55); when the color of the current pixel (R3'3') is same as the color of the related pixel, using a pixel value of the related pixel as a pixel value of the current pixel (R3'3'); and when the color of the current pixel (R5'5') is different from the color of the related pixel, using pixel values of a related-pixel-group comprising a plurality of pixels (R44, R74, R47, and R77) to calculate the pixel value of the current pixel (R5'5') through interpolation, wherein a color of the plurality of pixels (R44, R74, R47, and R77) of the related-pixel-group is same as the current pixel (R5'5'), and the plurality of pixels (R44, R74, R47, and R77) of the related-pixel-group are located in a first set of image-pixel-groups in the plurality of image-pixel-groups, wherein the image-pixel-groups in the first set of image-pixel-groups neighbor the first image-pixel-group, characterized in that before using the pixel values of the related-pixel-group comprising the plurality of pixels (R44, R74, R47, and R77) to calculate the pixel value of the current pixel (R5'5') through interpolation, the image processing method further comprises: performing white balance compensation on the color block image; and wherein after using the pixel values of the related-pixel-group comprising the plurality of pixels (R44, R74, R47, and R77) to calculate the pixel value of the current pixel (R5'5') through interpolation, the image processing method further comprises: performing white balance compensation restoration on the first imitating image. determining whether a color of the current pixel (R3'3' or R5'5') is same as a color of the related pixel (R33 or B55); when the color of the current pixel (R3'3') is same as the color of the related pixel, using a pixel value of the related pixel as a pixel value of the current pixel (R3'3'); and when the color of the current pixel (R5'5') is different from the color of the related pixel, using pixel values of a related-pixel-group comprising a plurality of pixels (R44, R74, R47, and R77) to calculate the pixel value of the current pixel (R5'5') through interpolation, wherein a color of the plurality of pixels (R44, R74, R47, and R77) of the related-pixel-group is same as the current pixel (R5'5'), and the plurality of pixels (R44, R74, R47, and R77) of the related-pixel-group are located in a first set of image-pixel-groups in the plurality of image-pixel-groups, wherein the image-pixel-groups in the first set of image-pixel-groups neighbor the first image-pixel-group, characterized in that before using the pixel values of the related-pixel-group comprising the plurality of pixels (R44, R74, R47, and R77) to calculate the pixel value of the current pixel (R5'5') through interpolation, the image processing method further comprises: performing white balance compensation on the color block image; and wherein after using the pixel values of the related-pixel-group comprising the plurality of pixels (R44, R74, R47, and R77) to calculate the pixel value of the current pixel (R5'5') through interpolation, the image processing method further comprises: performing white balance compensation restoration on the first imitating image. performing white balance compensation on the color block image; and wherein after using the pixel values of the related-pixel-group comprising the plurality of pixels (R44, R74, R47, and R77) to calculate the pixel value of the current pixel (R5'5') through interpolation, the image processing method further comprises: performing white balance compensation restoration on the first imitating image.