pdilationreconstruction

Synopsis

Description

pdilationreconstruction performs a geodesic reconstruction by dilation of the markers image im_in1 in the mask image im_in2.

The two images must be of the same type, and the image of markers im_in1 must be lower or equal in intensity to the image of mask im_in2.

The reconstruction by dilation according to the connexity consists in the following operation applied until idempotence:

   im1=MIN(im_in1, im_in2)
   imdilat=dilation(im1, connexity)
   im1=MIN(imdilat, im_in2) 

For the color images, it is the lexicographic order which is used: initially by using band X, in the event of equality by using the band Y then band Z.

Parameters

• connexity specifies the relationship between a pixel and its neighbors. It is an integer from: 2 for 1D, 2 or 8 for 2D or 6 or 26 for 3D.

Inputs

• im_in1: an image.
• im_in2: an image of the same type as im_in1.

Outputs

• im_out: an image of the same type as im_in1.

Result

Returns SUCCESS or FAILURE.

Examples

• Perform white geodesic Top Hat with small 17x17 square structuring element:

     perosion 1 8 tangram.pan i1.pan
     pdilationreconstruction 8 i1.pan tangram.pan i2.pan
     pdif tangram.pan i2.pan out.pan
  

See also

C++ prototype