Method and device for automatically removing purple fringing from photos

Abstract

The invention provides a method for automatically removing purple boundaries of photos and relates to the method for automatically removing purple boundaries of photos in the photographing process. According to the method, a function module framework is built, computer program commands are used for controlling a computer system to complete operations, and the computer program commands are stored in a readable storage medium of a computer. Firstly, purple boundary areas where purple boundaries need to be removed in photos are found out, then modification values of corresponding parameters in a parameter lookup table are used for modifying corresponding parameter values of pixels in the purple boundary areas, and the parameter lookup table comprises all possible values of the parameters and modification values in one-to-one correspondence with the possible values. The method is realized through software, hardware of a digital camera does not need to be changed, and the problems that cost is high and development period is long due to hardware changing are avoided.

Description

technical field [0001] The invention relates to a method for automatically removing purple fringes in photographs. The method is completed by establishing a functional module framework and controlling a computer system by computer program instructions, and the computer program instructions are stored in a computer-readable storage medium. Background technique [0002] In the process of taking pictures with a digital camera, if the scene to be photographed has a large brightness contrast, color spots are likely to appear at the junction of the high-light area and the low-light area, and this color spot is usually called purple fringing. The appearance of purple fringing is related to the dispersion of the camera lens, the small imaging area of ​​the CCD, and the signal processing algorithm inside the camera, etc. Even high-end digital cameras cannot completely solve the problem of purple fringing. [0003] Now the usual practice is to avoid purple fringing when taking picture...

AI Technical Summary

Problems solved by technology

The appearance of purple fringing is related to the dispersion of the camera lens, the small imaging area of ​​the CCD, and the signal processing algorithm inside the camera, etc. Even high-end digital cameras cannot completely solve the problem of purple fringing

[0003] Now the usual practice is to avoid purple fringing when taking pictures by changing the structure of the camera or lens, so as to achieve the purpose of removing the purple fringing of the photo. This method of changing the hardware structure is costly and the development cycle is long. At the same time, the actual effect is not certain. it is good

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