Function convert_from_image 

pub unsafe fn convert_from_image(
    cl_mem_image: *mut c_void,
    dst: &mut impl UMatTrait,
) -> Result<()>

Convert OpenCL image2d_t to UMat

Note: OpenCL image2d_t (cl_mem_image), should be compatible with OpenCV UMat formats. Memory content is copied from image to UMat with clEnqueueCopyImageToBuffer function.

Parameters

• cl_mem_image: source image2d_t handle
• dst: destination UMat