opencv 求图像梯度值,该怎么处理

opencv 求图像梯度值,该怎么处理

求助！！不甚感激！！
------解决方案--------------------------------------------------------
你得到的dst不就是算过的包含梯度信息的图像吗，实在不行你就自己写代码来取梯度也行，就几行代码而已
另外，附上我的一份不完整的代码，仅供参考啊
IplImage *pSrc = cvLoadImage(图片路径,..,..);//参数不说了
int nWidth = pSrc-width;
int nHeight = pSrc-height;
int nLineBytes = pSrc-widthStep;
uchar *uData = reinterpret_cast<uchar *(pSrc-imageData);
uchar uNeighbourPixel[8];//对于Sobel算子，计算的是8领域
for(int j = 1; j < nHeight - 1; j++)
for(int i = 1; i < nWidth - 1; i++){{uNeighbourPixel[0] = uDataY[(j - 1) * nLineBytesY + i - 1];
uNeighbourPixel[1] = uDataY[(j - 1) * nLineBytesY + i];
uNeighbourPixel[2] = uDataY[(j - 1) * nLineBytesY + i + 1];
uNeighbourPixel[3] = uDataY[j * nLineBytesY + i - 1];
uNeighbourPixel[4] = uDataY[j * nLineBytesY + i + 1];
uNeighbourPixel[5] = uDataY[(j + 1) * nLineBytesY + i - 1];
uNeighbourPixel[6] = uDataY[(j + 1) * nLineBytesY + i];
uNeighbourPixel[7] = uDataY[(j + 1) * nLineBytesY + i + 1];
uData[j * nLineBytes + i] = abs((1 * uNeighbourPixel[0] + 2 * uNeighbourPixel[1] + 1 * uNeighbourPixel[0]) - (1 * uNeighbourPixel[5] + 2 * uNeighbourPixel[6] + 1 * uNeighbourPixel[7]));}}最终uData数组里保存的就是Sobel算子计算的梯度信息了。
希望能帮到您！