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

pub fn build_pyramid(
    src: &dyn ToInputArray, 
    dst: &mut dyn ToOutputArray, 
    maxlevel: i32, 
    border_type: i32
) -> Result<()>

Constructs the Gaussian pyramid for an image.

The function constructs a vector of images and builds the Gaussian pyramid by recursively applying pyrDown to the previously built pyramid layers, starting from dst[0]==src.

Parameters

  • src: Source image. Check pyrDown for the list of supported types.
  • dst: Destination vector of maxlevel+1 images of the same type as src. dst[0] will be the same as src. dst[1] is the next pyramid layer, a smoothed and down-sized src, and so on.
  • maxlevel: 0-based index of the last (the smallest) pyramid layer. It must be non-negative.
  • borderType: Pixel extrapolation method, see #BorderTypes (#BORDER_CONSTANT isn't supported)

C++ default parameters

  • border_type: BORDER_DEFAULT