A Batch Truth Code Recognition Method
A recognition method and a technology of true knowledge codes, which are applied in the field of two-dimensional codes, can solve the problems of unrecognizable true knowledge codes, easy to be cracked and imitated, and unable to guarantee the uniqueness of codes, etc., to achieve the effect of reducing workload and high work efficiency
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[0031] Such as figure 2 and image 3 As shown, the present invention discloses a batch truth code identification method, including the following sequential steps:
[0032] Step 1: Obtain images printed with truth codes of equal size in batches, and perform binarization on the images. The specific process includes:
[0033] a. Convert the image to be checked into a grayscale image; b. Set the threshold, set the grayscale value of the point whose grayscale value is less than the threshold value to 0, and set the grayscale value of the point whose grayscale value is greater than the threshold value to 255, and display the binarized image on the display device; c, observe the binarized image, and adjust the threshold in real time until the two-dimensional code image in the binarized image is clear and the noise points are the least.
[0034] Step 2: Identify and locate the "Z"-shaped positioning mark. In this step, first use the image display device to display the binarized im...
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