How to solve the problem of color cast of color camera image

[ Pacific Security Network News ]
It is easy to malfunction when using surveillance cameras. The most common problem is the color cast of color camera images. It is well known that black and white cameras in surveillance cameras are all infrared light. In the visible light condition, infrared light is a kind of stray light for color cameras, which will reduce the sharpness and color reproduction of color cameras. The camera uses a CCD to sense all the light (visible light, infrared light, ultraviolet light, etc.), which causes the image taken during the day to be very different from the image produced by our naked eye only by visible light. Since the CCD senses infrared light, it interferes. The operation to the DSP results in a color cast.
A large number of technologies have been developed in the industry for the color cast of infrared camera surveillance images. Currently, there are three main ways to solve this problem. The first is to debug the RGB color on the CCD for DSP processing. This method does not cure the problem, and not every manufacturer has the chip processing capability; the second is to switch through the filter, use all the filters during the day. In addition to the infrared filter, the ordinary quartz piece is used to trim the light at night; the third is to replace the IRCUT camera with a dual CCD infrared camera through the change of the model, and the infrared camera can be grown while ensuring no color cast during the day. Service life.

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