[−][src]Function opencv::imgproc::get_rect_sub_pix

pub fn get_rect_sub_pix(
    image: &dyn ToInputArray, 
    patch_size: Size, 
    center: Point2f, 
    patch: &mut dyn ToOutputArray, 
    patch_type: i32
) -> Result<()>

Retrieves a pixel rectangle from an image with sub-pixel accuracy.

The function getRectSubPix extracts pixels from src:

block formula

where the values of the pixels at non-integer coordinates are retrieved using bilinear interpolation. Every channel of multi-channel images is processed independently. Also the image should be a single channel or three channel image. While the center of the rectangle must be inside the image, parts of the rectangle may be outside.

Parameters

  • image: Source image.
  • patchSize: Size of the extracted patch.
  • center: Floating point coordinates of the center of the extracted rectangle within the source image. The center must be inside the image.
  • patch: Extracted patch that has the size patchSize and the same number of channels as src .
  • patchType: Depth of the extracted pixels. By default, they have the same depth as src .

See also

warpAffine, warpPerspective

C++ default parameters

  • patch_type: -1