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Barcode detection method and barcode detection system for increasing detection efficiency by using gray level flip counts
Barcode detection method and barcode detection system for increasing detection efficiency by using gray level flip counts
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机译:利用灰度翻转计数提高检测效率的条形码检测方法和条形码检测系统
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摘要
A barcode detection method includes acquiring an image by a camera, acquiring a horizontal gradient and a vertical gradient of each pixel of the image within a region, generating a gradient phase and gradient magnitude of each pixel according to the horizontal gradient and the vertical gradient, performing a binarization process to the gradient magnitude of each pixel of the image within the region for generating a binarized image, vertically and horizontally sampling the binarized image for generating the gray level flip count in a vertical direction and a horizontal direction, locating an image region of a barcode according to the gray level flip count in the vertical direction and the horizontal direction, acquiring a plurality of gradient phases of all pixels within the image region for generating a gradient phase distribution, and generating a barcode format detection result according to the gradient phase distribution.
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