An image processing method and device

Abstract

An embodiment of the present invention provides an image processing method and device, the method comprising: dividing the input current image frame into a plurality of pixel blocks; for each divided pixel block, according to the set sequence and preset conditions, Determine whether the pixel block is located on the false-color edge of the moving object in the current image frame in turn, and whether it is located in the ring area; if it is judged that the pixel block is located on the false-color edge and not in the ring area, then according to the pixel block The pixel information of the pixel block that is adjacent to the block and has been judged, the color component of the pixel point where the false color is located in the pixel block is repaired, and the next pixel block is judged after the repair, until all the pixel blocks are judged, and the repaired image frame. The embodiment of the present invention processes wide dynamic image frames including moving objects through preset conditions, and uses a restoration algorithm to suppress false color phenomenon on the edges of moving objects in the image frames. This processing method is simple and easy, and the difficulty is relatively small.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to an image processing method and device. Background technique [0002] With the continuous improvement of people's requirements for cameras, wide dynamic technology has become one of the indispensable technologies in video surveillance. Whether it is a digital camera used in daily life or a monitoring device used in the security field, wide dynamic technology has received special attention. [0003] The so-called wide dynamic technology is a technology used to allow the camera to see more features of the image under very strong contrast. Specifically, when high-brightness areas illuminated by strong light sources (sunlight, lamps, or reflections, etc.) and relatively low-brightness areas such as shadows and backlights exist in the image at the same time, the output image of the camera will appear bright areas due to overexposure It appears white, and dark areas appear blac...

AI Technical Summary

Problems solved by technology

[0009] The embodiment of the present invention provides an image processing method and device to solve the problem that it is difficult to suppress the false color phenomenon on the edge of the moving object in the existing image frame

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