图像细化多用于机器人视觉，OCR字符识别等领域，细化后的图像经过去毛刺就成为了我们常说的图像的骨架。
该图像细化代码依据论文： T. Y. ZHANG and C. Y. SUEN A Fast Parallel Algorithm for Thinning Digital Patterns
代码如下：
void ThinSubiteration1(Mat & pSrc, Mat & pDst) {
int rows = pSrc.rows;
int cols = pSrc.cols;
pSrc.copyTo(pDst);
for(int i = 0; i < rows; i++) {
for(int j = 0; j < cols; j++) {
if(pSrc.at<float>(i, j) == 1.0f) {
/// get 8 neighbors
/// calculate C(p)
int neighbor0 = (int) pSrc.at<float>( i-1, j-1);
int neighbor1 = (int) pSrc.at<float>( i-1, j);
int neighbor2 = (int) pSrc.at<float>( i-1, j+1);
int neighbor3 = (int) pSrc.at<float>( i, j+1);
int neighbor4 = (int) pSrc.at<float>( i+1, j+1);
int neighbor5 = (int) pSrc.at<float>( i+1, j);
int neighbor6 = (int) pSrc.at<float>( i+1, j-1);
int neighbor7 = (int) pSrc.at<float>( i, j-1);
int C = int(~neighbor1 & ( neighbor2 | neighbor3)) +
int(~neighbor3 & ( neighbor4 | neighbor5)) +
int(~neighbor5 & ( neighbor6 | neighbor7)) +
int(~neighbor7 & ( neighbor0 | neighbor1));
if(C == 1) {
/// calculate N
int N1 = int(neighbor0 | neigh