Blur image adjusting method

摘要

A blur image adjusting method includes the following steps. Firstly, a blur image in YCbCr color space is obtained. The Y component of the blur image is extracted so as to obtain a Y component blur image. A blur area is extracted from the Y component blur image by an edge detection technology. A horizontal shift amount and a vertical shift amount are estimated according to a horizontal shift pixel number distribution and a vertical shift pixel number distribution of the blur area. A point spread function is determined according to the horizontal shift amount and the vertical shift amount. Afterwards, the blur image is adjusted according to the point spread function.