Blocking effect analysis method and system

The invention discloses a blocking effect analysis method. The method comprises the following steps: inputting a decoded image; calculating brightness differences on boundaries among pixel blocks; utilizing a blocking effect visibility function to process the brightness differences on the boundaries among the pixel blocks; utilizing a Weber-Fick inner law to calculate the subjective sensation of a human vision system to visible blocking effects; and integrating the blocking effects on all the boundaries in the image to obtain the blocking effect evaluation analysis results of the whole image.The blocking effect analysis method and the system can accurately realize the blocking effect evaluation so that results can more suit the subjective sensation of the eyes.