White balance processing method and processing device thereof

Abstract

The invention provides a white balance processing method and a processing device thereof. The white balance processing method comprises the following steps that after an input image is divided into a plurality of divided block images, white dot identification is conducted on each divided block image, and white dot identification results are generated; according to the position of each divided block image on the input image and the continuity of each divided block image and a plurality of surrounding divided block images, the weight of the white dot identification results corresponding to all divided blocked images is determined; the white balance estimated value of the input image is calculated according to the white dot identification results of the divided block images and the weight, and white balance process is conducted on the input image. According to the white balance processing method and the processing device thereof, through weight analysis of added input image luminous source sorts and the continuous calculation to the positions of the divided block images and the positions of surrounding divided blocks, white balance process is conducted, and under the premise that specific scene color generation is highlighted, the color generation of the input image can be precisely obtained.

Description

technical field [0001] The present invention relates to a white balance processing method and a processing device thereof, in particular to a method for dividing an image into a plurality of divided blocks, and analyzing the image data of each divided block individually, so as to reduce white point errors in the image scene. A white balance processing method and processing device for judging situations. Background technique [0002] With the successive introduction of digital cameras, image sensors such as charge-coupled devices (Charge-coupled devices, CCD) or complementary metal-oxide-semiconductor sensors (CMOS sensors) are increasingly important, because image sensors cannot distinguish The color of the external ambient light, so digital cameras usually need to perform white balance processing. [0003] Generally speaking, the color of the light reflected by an object depends on the color of the light source. The human brain can detect and correct such color changes. Th...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the existing white balance technology, further analysis of the overall composition content and image light source is ignored, and the continuity of the images of each segmented block is not analyzed, so as to accurately judge the scene content at the time, and it is easy to misjudge the image content of the segmented blocks , and the problem of deviation of the white balance correction result, the object of the present invention is to provide a white balance processing method and device

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