Mr. Belal Khaldi Profile

Belal Khaldi

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SPIE Journal Paper | 9 September 2016

Modified integrative color intensity co-occurrence matrix for texture image representation

Belal Khaldi, Mohammed Lamine Kherfi

JEI, Vol. 25, Issue 05, 053007, (September 2016) https://doi.org/10.1117/12.10.1117/1.JEI.25.5.053007

KEYWORDS: Feature extraction, Image retrieval, Associative arrays, RGB color model, Image processing, Volume rendering, Matrices, Visualization, Information fusion, Quantization

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Gray-level co-occurrence matrix (GLCM) is one of the most used methods for texture representation. As it can be computed only from gray-level images, a significant amount of information that could be provided by color is totally ignored. We propose a generalization of GLCM from gray level to hue saturation value color space, which we refer to as modified integrative color intensity co-occurrence matrix (MICICM). To reach such a generalization, a mapping function, which determines for each pixel value the bin it falls into, is needed. In many previous studies, this function uses a hard mapping where all pixel values that fall in a bin are considered as the same, regardless of their values. This presents a number of drawbacks. To fix them, we introduce a color and gray-level mapping scheme based on a set of weight assignment functions we propose. In our scheme, each pixel is mapped to more than one possible color (and gray-level) bin, to avoid the drawbacks of hard mapping. Although a fuzzy-based scheme has been recently proposed, our MICICM has successfully outperformed it and those of the state of the art. Our findings make several noteworthy contributions to image representation.

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