plinearinterpolation

Synopsis

Description

The operator plinearinterpolation replaces the pixel of the image permet im_in that are masked in the image im_msk with linear interpolation of the neighboring pixels. The neighborhood is defined as a window of size window_depth x window_height x window_width centered in the pixel.

The output image im_out is built as follows:

if im_msk(y,x) = 0 then im_out(y,x) = im_in(y,x)
                   else im_out(y,x) = mean(im_in, (x, y)), window)

where mean(im_in, (y,x), window) is the mean value of the unmasked pixels in the window.

Parameters

• window_width, window_height, window_depth define the size of the neighboring window.

Inputs

• im_in: an image.
• im_in: a binary image.

Outputs

• im_out: an image of the same type as the input image.

Result

Returns SUCCESS or FAILURE.

Examples

Build a mask image with a round inside and apply the linear interpolation inside the round:

  pshapedesign 205 244 0 1 20 0 a.pan
  plinearinterpolation 20 20 0 examples/butterfly.pan a.pan b.pan

See also

C++ prototype