An Image Correction Method Applicable to Bending and Deformed Two-Dimensional Codes
A two-dimensional code, deformation technology, applied in the field of image processing, to achieve the effect of accurate positioning
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[0048] The image correction method suitable for bending and deforming two-dimensional codes disclosed in the embodiments of the present invention can be divided into two steps: two-dimensional code region extraction and bending deformation correction. Two-dimensional code extraction and bending deformation correction each include three small steps. There are six small steps in total. as attached Figure 8As shown, the two-dimensional code area extraction step includes two-dimensional code image preprocessing, two-dimensional code position detection graphic positioning and two-dimensional code closure extraction. Two-dimensional code image preprocessing is to obtain a binary image that is easier to process without destroying the two-dimensional code information. The steps include: graying the two-dimensional code RGB format image by weighted Noise, Otsu binarization. The location of the two-dimensional code position detection pattern is firstly determined according to the bla...
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