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Texture parameters
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Calculation formulas
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Angular second moment
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\(Asm = \sum\limits_{i = 0}^{L - 1} {\sum\limits_{j = 0}^{L - 1} {[p(i,j)]^{2} } }\)
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Contrast
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\(Con = \sum\limits_{i = 0}^{L - 1} {\sum\limits_{j = 0}^{L - 1} {p(i,j)(i - j)^{2} } }\)
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Entropy
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\(Ent = - \sum\limits_{i = 0}^{L - 1} {\sum\limits_{j = 0}^{L - 1} {p(i,j)\log p(i,j)} }\)
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Inverse differential moment
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\(Idm = \sum\limits_{i = 0}^{L - 1} {\sum\limits_{j = 0}^{L - 1} {\frac{p(i,j)}{{1 + (i - j)^{2} }}} }\)
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Correlation
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\(Cor = \frac{1}{{\sigma_{x} \sigma_{y} }}\sum\limits_{i = 0}^{L - 1} {\sum\limits_{j = 0}^{L - 1} {[p(i,j)ij]} - \mu_{x} \mu_{y} }\) where \(\mu_{x} = \sum\limits_{i = 0}^{L - 1} {\sum\limits_{j = 0}^{L - 1} {ip(i,j)} }\), \(\mu_{y} = \sum\limits_{i = 0}^{L - 1} {\sum\limits_{j = 0}^{L - 1} {jp(i,j)} }\) \(\sigma_{x} = \sum\limits_{i = 0}^{L - 1} {\sum\limits_{j = 0}^{L - 1} {(i - \mu_{x} )^{2} p(i,j)} }\),\(\sigma_{y} = \sum\limits_{i = 0}^{L - 1} {\sum\limits_{j = 0}^{L - 1} {(j - \mu_{y} )^{2} p(i,j)} }\)
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