Binarization image and gray level image efficient denoising method based on pixel continuity judgment
A technology of binarizing images and grayscale images, which is applied in the field of image processing, can solve problems such as large amount of calculation and complex methods, and achieve the effects of simple algorithm, simple noise removal, and high execution efficiency
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[0026] The basic idea, judgment method and de-noising process of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0027] For a binarized image, there are only two kinds of pixel brightness, namely white and black. According to the relatively scattered and isolated characteristics of the noise distribution, the number N of consecutive pixels with the same brightness is calculated and compared with the set threshold N1 to determine whether the pixel is a noise point. First, analyze a certain pixel to determine whether it is black or white. Assuming that the result of the determination is black, then follow figure 1 Expand it in eight areas in the manner shown, figure 1 The pixel numbered 0 is the analyzed pixel, that is, the pixel to be expanded, and the pixel numbered 1-8 is the eight area pixels obtained by expansion (if the analyzed pixel is the most edge pixel of the image, it will be appropriately Five areas or three area...
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