Profile/Element(Histogram)

• P_rk：is the grayscale of pixels grade；

• n： is the number of rows of gray matrix；

• m：is the number of columns in the grayscale matrix ；

Polynomial Function

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The exponential function (in blue), and the sum of the first n+1 terms of its Maclaurin power series (in red)

Correlation Analysis

• i=(1,2,.....n)

• Linear regression curve transformation

• The coefficient range -1 to 1, 1 has a good correlation, 0 has no linear correlation, -1 inverse correlation;

Gauss-Siedal Method