Image dead pixel detection method, system and device

The invention relates to the technical field of image data processing, in particular to an image dead pixel detection method, system and device. The method comprises the following steps: dividing a detection image into a plurality of image blocks according to preset division information; calculating channel data of a preset channel of each pixel point under the image block, and calculating a plurality of channel average values of the image block; judging whether the pixel point is a dead pixel point or not according to the channel data of the pixel point and the channel average value of the channel corresponding to the image block where the pixel point is located, and marking the dead pixel point; classifying the dead pixel points according to a preset classification condition; and judging whether the image block where the dead pixel point is located is a dead pixel according to a classification result. By adopting the scheme, the dead pixel detection efficiency can be improved, and dead pixels can be accurat