C++简单实现膨胀腐蚀开闭运算

项目需要用到闭运算对结果做形态学处理，简单实现一个仅供参考。

void Erosion(BYTE* image, BYTE* res, int nHeight, int nWidth)//二值图像膨胀{for (int i = 1; i < nHeight - 1; i++){for (int j = 1; j < nWidth - 1; j++){int pos = i*nWidth + j;int up = pos - nWidth;int upleft = pos - nWidth - 1;int upright = pos - nWidth + 1;int left = pos - 1;int right = pos + 1;int downleft = pos + nWidth - 1;int down = pos + nWidth;int downright = pos + nWidth + 1;(image[pos] || image[up] || image[upleft] || image[upright] || image[left] || image[right] || image[downleft] || image[down] || image[downright]) ? res[pos] = 255 : res[pos] = 0;}}for (int i = 0; i < 1; i++){for (int j = 0; j < nWidth; j++){int tmppos = i*nWidth + j;res[tmppos] = image[tmppos];}}for (int i = 1; i < nHeight - 1; i++){int tmppos1 = i*nWidth;res[tmppos1] = image[tmppos1];int tmppos2 = (i + 1)*nWidth - 1;res[tmppos2] = image[tmppos2];}for (int i = nHeight - 1; i < nHeight; i++){for (int j = 0; j < nWidth; j++){int tmppos = i*nWidth + j;res[tmppos] = image[tmppos];}}}void Dilation(BYTE* image, BYTE* res, int nHeight, int nWidth)//二值图像腐蚀{for (int i = 1; i < nHeight - 1; i++){for (int j = 1; j < nWidth - 1; j++){int pos = i*nWidth + j;int up = pos - nWidth;int upleft = pos - nWidth - 1;int upright = pos - nWidth + 1;int left = pos - 1;int right = pos + 1;int downleft = pos + nWidth - 1;int down = pos + nWidth;int downright = pos + nWidth + 1;(image[pos] && image[up] && image[upleft] && image[upright] && image[left] && image[right] && image[downleft] && image[down] && image[downright]) ? res[pos] = 255 : res[pos] = 0;}}for (int i = 0; i < 1; i++){for (int j = 0; j < nWidth; j++){int tmppos = i*nWidth + j;res[tmppos] = image[tmppos];}}for (int i = 1; i < nHeight - 1; i++){int tmppos1 = i*nWidth;res[tmppos1] = image[tmppos1];int tmppos2 = (i + 1)*nWidth - 1;res[tmppos2] = image[tmppos2];}for (int i = nHeight - 1; i < nHeight; i++){for (int j = 0; j < nWidth; j++){int tmppos = i*nWidth + j;res[tmppos] = image[tmppos];}}}void Closeoperations(BYTE* image, BYTE* res, int nHeight, int nWidth)//形态学闭操作{BYTE* transition = new BYTE[nHeight*nWidth];Erosion(image, transition, nHeight, nWidth);Dilation(transition, res, nHeight, nWidth);delete[]transition;}void Openoperations(BYTE* image, BYTE* res, int nHeight, int nWidth)//形态学开操作{BYTE* transition = new BYTE[nHeight*nWidth];Dilation(image, transition, nHeight, nWidth);Erosion(transition, res, nHeight, nWidth);delete[]transition;}