Method for quickly positioning damaged QR code according to image redundancy information
A redundant information, QR code technology, applied in image enhancement, image analysis, image data processing and other directions, can solve problems such as inability to transplant algorithms and slow down the speed of positioning.
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[0087] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.
[0088] like figure 1 As shown, the method for quickly locating damaged QR codes according to image redundancy information disclosed by the present invention includes the following steps:
[0089] The method for quickly locating the damaged QR code according to image redundancy information comprises the following steps:
[0090] Step 1, grayscale processing is performed on the picture containing the QR code to obtain the grayscale picture;
[0091] Step 2, evaluate the sharpness of the grayscale image by random sampling;
[0092] Step 3, filter and edge detect the grayscale image through an adaptive threshold;
[0093] Step 4, determine the width of the stripe by the detected edge, and determine the three positioning patterns of the QR code according to ...
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