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Many applications of histogram-based techniques for the purposes of image enhancement are well known. However, these techniques often fail to produce satisfactory results for a broad variety of low-contrast images (e.g., X-ray images). In this paper, we propose a new form of histogram for image contrast enhancement. The input image is first divided into several equal-sized regions according to the...
Histogram-based techniques are useful for image enhancement. However, these techniques often fail to produce satisfactory results for some low-contrast images. In this paper, we propose a new form of histogram for image contrast enhancement. The input image is first divided into several equal-sized regions according to the intensities of the gradients, their corresponding statistical values of gray...
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