/*可以通过改变imPmin、imPmax以及rePmin与rePmax的值来对图像的局部细节进行放大，从而可以观察到更加精美复杂的图像，领悟分形图像的神韵。 float reP,rePmin=-1.5,rePmax=0.75 float imP,imPmin=-1.5,imPmax=1.5 */

This is the inverse of ImToPolar. imP is the polar image with M rows and N columns of data (double data between 0 and 1). M is the number of samples along the radius from rMin to rMax (which are between 0 and 1 and rMax > rMin). Mr and Nr are t