GetImageGradient code error

[zjd1988]

python code as follows: Gradient is compute by AbsoluteMaximum

def AbsoluteMaximum(images): assert(len(images) > 0) output = images[0] for i in range(1,len(images)): output[np.abs(images[i]) > np.abs(output)] = images[i][np.abs(images[i]) > np.abs(output)] return output

cpp code as follows:

std::pair<cv::Mat, cv::Mat> ARDepth::GetImageGradient(const cv::Mat& image){ .... cv::Mat img_grad_x = cv::max(cv::max(rgb_x[0], rgb_x[1]), rgb_x[2]); cv::Mat img_grad_y = cv::max(cv::max(rgb_y[0], rgb_y[1]), rgb_y[2]); ....

cpp without abs operation