The filter is meant to prevent the incidence of infrared light onto the image sensor. In order to avoid unwanted side-effects caused by infrared light (as part of the natural ambient light) during image capturing in daylight mode, an IR Cut Filter is installed in front of the sensor. The Infrared Cut Removal or IR Cut Filter is a color filter blocking the infrared light. However, most of the time the pink image in security cameras is caused by the IR Cut Filter malfunctioning or getting stuck. There are many factors that contribute to this error such as bad firmware, bad software, settings done wrong, an extremely cold environment, etc. The camera’s picture may be fine but suddenly it gets a pink hue (in a few cases can be green) and the overall picture quality degrades. Is your security camera’s image pinkish? Is the live view of your camera colored pink? Or is green/greenish? It’s a common issue for CCTV security cameras to have the pink image issue.
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