Thickening Operator

Building the Cantata Workspace


To build a workspace to experiment with the thickening operator:
  1. Select and Display the image $MMACH/viff/thinthick.xv using the operators User Defined, Expand and Display Image. Expand is used to make the pixels look larger as the original image is very small.

  2. Build the two Structuring Elements A and B using two 3x3 Str.El. operators.

  3. Use operators Sup-Gen. and Union

Exercises

  1. Repeat the same experiment but thickening pixels in places where exists a top and bottom pixel equal to one.

  2. Repeat the same experiment by thickening pixels in places where exists a pixel at its right side.

  3. Are the thickening operators used in this experiment and in the above exercices homotopic?

  4. Repeat the same experiment to thick pixels in places where exits at least one 4-connected neighbor pixel equal to one. (Hint: use the operator Rotate Str. El.)