图像的行筛选

Question

我正在编写图像的行过滤过程，并收到以下错误。

OpenCV(3.4.1) Error: Assertion failed ((unsigned)pt.y < (unsigned)size.p[0]) in cv::Mat::at, file c:opencv3.4.1buildinstallincludeopencv2coremat.inl.hpp, line 1128

我使用 opencv 中的 copyMakeBorder 函数 include 为图像添加填充。

int filter_size = 7;
int h = filter_size / 2;
int top, bottom, left, right;
top = bottom = left = right = h;
Scalar value(0, 0, 0);
        copyMakeBorder(double_src, rowPaddedImage, 0, 0, left, right, BORDER_CONSTANT, value);
//Row filter
        for (int i = 0; i < rowPaddedImage.rows; i++) //For img
        {
            for (int j = h; j < rowPaddedImage.cols - h; j++) //For img
            {
                b = g = r = 0.0;
                for (int l = 0; l < f_size; l++) 
                {
                    colPaddedImage.at<Vec3d>(Point(i + h, j - h))[0] += rowPaddedImage.at<Vec3d>(Point(i, j - h + l))[0] * filter[l];
                    colPaddedImage.at<Vec3d>(Point(i + h, j - h))[1] += rowPaddedImage.at<Vec3d>(Point(i, j - h + l))[1] * filter[l];
                    colPaddedImage.at<Vec3d>(Point(i + h, j - h))[2] += rowPaddedImage.at<Vec3d>(Point(i, j - h + l))[2] * filter[l];
                }//Kernel loop end
            }
        }

预期成果：想要获取与原始图像大小相同的行过滤图像。

实际结果：我在编译时收到以下错误消息。

OpenCV(3.4.1) Error: Assertion failed ((unsigned)pt.y < (unsigned)size.p[0]) in cv::Mat::at, file c:opencv3.4.1buildinstallincludeopencv2coremat.inl.hpp, line 1128

Answer 1

我删除了 Point((，只写了 colPaddedImage.at(i+h， j-h([0]，这就解决了我的问题。