QR two-dimensional bar code recognition method based on pickup head for chatting
A fast-response, matrix code technology, applied in the direction of sensing record carriers, instruments, computer components, etc., can solve the problems of strong randomness of the initial central value of the group, entering an infinite loop, and failing to obtain results. It is easy to select the threshold value , the effect of simple model and less calculation
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[0036] (1) Grayscale
[0037]Because the quick response matrix code image is composed of black and white modules of 0 or 1, and the image collected by the camera is a color image. Color images contain a large amount of information, which not only costs a lot in storage, but also reduces the execution speed of the system in processing. Since each pixel of the image has three different color components, there is a lot of information irrelevant to the recognition, which is not convenient for further recognition work. Therefore, in the processing of image recognition, the color image is often converted into a grayscale image. Speed up processing. The process of converting a color image to a grayscale image is called grayscale processing. A grayscale image is an image with only intensity information but no color information. Since the human eye has the highest sensitivity to green, followed by red, and the lowest sensitivity to blue, after a lot of practical experience, it is ...
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