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

?

  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