System information (version)

• OpenCV => 4.5.5
• Operating System / Platform => Ubuntu 64 Bit
• Compiler => clang 14.0.6

Detailed description

cv::filter2D throws if input is CV_32F and output is CV_64F, while in the documentation it says that it should be supported.

Steps to reproduce

auto input = ::cv::Mat(5, 5, CV_32F, 2);
auto kernel = ::cv::Mat(3, 3, CV_32F, 1);
auto output = ::cv::Mat(5, 5, CV_64F, 2);
::cv::filter2D(input, output, output.depth(), kernel);

It throws the following exception:

OpenCV(4.5.5) Error: The function/feature is not implemented (Unsupported combination of source format (=5), and destination format (=6)) in getLinearFilter, file /path_to_opencv/modules/imgproc/src/filter.simd.hpp, line 3297