1. An image processing system, comprising: a photography apparatus having a processor and a storage apparatus, wherein the processor is configured to load a plurality of instruction from the storage apparatus to perform: a color channel image generation module generating a plurality of original color channel images according to an original image; a sharpness selection module selecting a sharpest original color channel image from the original color channel images as a deblurred datum color channel image; an calculation module trialing a blur radius value corresponding to an out of focus transform function between the deblurred datum color channel image and the other original color channel images, so as to obtain a plurality of target blur radius values, and respectively performs a deblurring operation on the original color channel image corresponding to each of the target blur radius values according to the target blur radius value, so as to obtain a plurality of deblurred color channel images; an image combination module combining the deblurred datum color channel image and the deblurred color channel images to obtain a blur calibrated image; and an image feature recognition module respectively performing a feature point recognition algorithm on the original color channel images, so as to respectively find out a plurality of feature points in each of the original color channel images, wherein the calculation module further calculates transformation matrixes between every two of the original color channel images according to the feature points, and the calculation module selects a shift datum color channel image from the original color channel images, and according to transformation matrixes corresponding to the shift datum color channel image, the calculation module transforms the other original color channel images, so as to obtain a plurality of shift calibrated color channel images, wherein the original color channel image corresponding to the shift datum color channel image has the minimum distortion.