Cris-cross lines.

(art2)

The original image.

(art2trn1)

Result of translating art2 by 110 pixels in the x-direction and 120 pixels in the y-direction, and wrapping the result.

(art2sub1)

Result of translating art2 by 1 pixel in the x-direction and y-direction, and then subtracting this from the original.

(art2trn2)

Result of rotating art2 by 180 degrees about its center, displacing it by 1 pixel in the x and y-directions and then subtracting this result from the original.

(art2opn1)

Result of opening art2 with a 3×9 structuring element.

(art2opn2)

Result of opening art2 with a 9×3 structuring element.

(art2ldh1)

Normalized result of horizontal line detecting art2.

(art2crp1)

Cropped and zoomed version of art2.

(art2crp2)

Cropped and zoomed version of art2ldh1.

(art2skl1)

Skeletonized version of art2.

(art2ldh2)

Normalized result of horizontal line detecting art2skl1.

(art2ldh3)

Result of thresholding art2ldh2.

(art2ldh4)

Result of applying the same thresh to art2ldh1.

(art2crp3)

Cropped and zoomed version of art2ldh1.

(art2crp4)

Cropped and zoomed version of art2ldh2.

(art2ldv2)

Normalized result of vertical line detecting art2skl1.

(art2ldv1)

Result of thresholding art2ldv2.

(art2ldp2)

Normalized result of line detecting the oblique 45 degree lines in art2skl1.

(art2ldp1)

Result of thresholding art2ldp2.

(art2ldn2)

Normalized result of line detecting the oblique 135 degree lines in art2skl1.

(art2ldn1)

Result of thresholding art2ldn2.

(art2add1)

Result of pixel adding art2ldh3 art2ldv1 art2ldp1 and art2ldn1.

©2003 R. Fisher, S. Perkins, A. Walker and E. Wolfart.