phitormiss

Synopsis

Description

phitormiss finds location of one shape among a set of shapes. The shape is defined by two structuring elements: im_se1 is a structuring element that specifies the object part, and im_se2 specified the background part. The transformation can be summarised by the question: "does im_se1 fits the objet part while im_se2 fits the objet background?."

[UHMT(f)](x) = [erod_se1(f)](x) - [dil_se2](x) if [erod_se1(f)](x) > [dil_se2](x)
               0 otherwise

Inputs

• im_se1: an image of bytes.
• im_se2: an image of bytes.
• im_in: an image.

Outputs

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

Result

Returns SUCCESS or FAILURE.

Examples

• Detect straight lines in the gradient image:

  cat > se1.txt << EOF
  255 0 3
  255 1 3
  255 2 3
  255 3 3
  255 4 3
  EOF
  cat > se2.txt<<EOF
  255 2 0
  255 2 1
  255 2 5
  255 2 6
  EOF
  ptxt2pan 0 5 7 0 se1.txt se1.pan
  ptxt2pan 0 5 7 0 se2.txt se2.pan
  pgradient 1 examples/tangram.pan a.pan b.pan
  phitormiss se1.pan se2.pan a.pan c.pan
  

See also

C++ prototype