A kind of dirty test method of wide-angle camera module
A technology of wide-angle camera and testing method, which is applied in the field of wide-angle camera module dirt testing, can solve the problems such as the difficulty of wide-angle camera dirty detection, and achieve the effect of preventing detection influence
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[0034] A kind of dirty test method of wide-angle camera module of this embodiment, such as figure 1 shown, including the following steps:
[0035] S1. The template is photographed with a camera; the template adopts a white background.
[0036] S2. Distinguish the normal part and the dark part of the captured image, and extract the position information of the lens imaging boundary; the specific steps include:
[0037] S21. Set the threshold of the captured image; the threshold is 60-70.
[0038] S22. Binarize the captured image according to the threshold;
[0039] S23. Extracting the black and white boundary position information, and forming the lens imaging boundary position information.
[0040] S3. Perform median filtering and binarization processing on the captured image to obtain an image with dirty spots; the specific process includes:
[0041] S31. Read the photographed image in grayscale format;
[0042] S32. Perform the first contrast enhancement process on the im...
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