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This work presents a technique for digital image processing. The technique consists on splitting the original image with 256 gray levels into its equivalent 8 binary images. The method is extended for true RGB color images by working out each color plane as a gray scale image and applying the same algorithm development for the former case to convert any intensity level into a byte of 8 bits. The results...
In this paper we present an experimental analysis of colour-based texture image classification in order to evaluate whether colour and texture information should be used jointly or separately. Various colour spaces are used for colour information extraction. The complex wavelet transform is used to extract texture information. Results show that colour and texture information should be treated separately...
This paper presents a robust watermarking technique against geometric distortions. The proposed technique is based on the modification of the 2D color histogram. Because the histogram of an image is one of the image geometric invariant representations, if the watermark can be embedded into the histogram, it should survive to most geometric transformations. The difficulty of the watermarking based...
Most of the thresholding procedures involved setting of boundaries based on grey values or intensities of image pixels. In this paper, the thresholding is to be done based on color values in images of Ziehl-Neelsen sputum slides. The color thresholding technique is being carried out based on the adaptation and slight modification of the grey level thresholding algorithm. Multilevel thresholding has...
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