Image processing method and device

An image processing method, comprising:

• performing brightness adjustment on each frame of image in a video;
• performing offset compensation on each frame of the image after the brightness adjustment;
• and
• performing time domain filtering on pixels of each frame of the image after the offset compensation;
• wherein the method further comprises:
• zooming out each whole frame of image after the brightness adjustment automatically;
• obtaining zoomed out image of each frame after multiple processing by matching, second time domain filtering, moving object determining, image fusion, spatial each whole frame of zoomed out image;
• obtaining a difference diagram according to the zoomed out image of each frame after multiple processing and the zoomed out image of each frame after the brightness adjustment automatically;
• obtaining an enlarged difference diagram by zooming in the difference diagram to the same size as the zoomed out image of each frame after the brightness adjustment automatically;
• obtaining a final result by superimposing the enlarged difference diagram on each frame image after the brightness adjustment automatically.