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Square with hole.

args[0] (wdg2)

The original image.

args[0] (wdg2hst1)

Intensity histogram of wdg2.

args[0] (wdg2hst2)

An edited (i.e. enlarged to the size of wdg2) version of the intensity histogram of wdg2.

args[0] (wdg2xor1)

Result of XORing wdg2 and wdg2hst2 in a bitwise fashion.

args[0] (wdg2or1)

Result of ORing wdg2 with wdg2hst2.

args[0] (wdg2hst3)

Intensity histogram of wdg2 with the y-axis expanded.

args[0] (wdg2thr2)

Result of thresholding wdg2 at a pixel value of 120.

args[0] (wdg2thr3)

Result of thresholding wdg2 at a pixel value of 120. Inverse of wdg2thr2.

args[0] (wdg2ded1)

Result of applying dilation edge detection with a 3×3 kernel to wdg2thr2.

args[0] (wdg2dil1)

Result of applying dilation twice by a disk of diameter 11 to wdg2thr2.

args[0] (wdg2ero1)

Result of applying erosion four times by a disk of diameter 11 to wdg2thr2.

args[0] (wdg2skl1)

Result of skeletonizing wdg2thr2.

args[0] (wdg2mat1)

Medial axis transform of wdg2thr2.

args[0] (wdg2sob1)

Result of applying the Sobel operator to wdg2.

args[0] (wdg2sob2)

Result of thresholding wdg2sob1 at a pixel value of 60.

args[0] (wdg2thn1)

Result of thinning wdg2sob2.

args[0] (wdg2thn2)

Result of pruning wdg2sob2 using thinning for five iterations.

args[0] (wdg2can1)

Result of applying the Canny edge detector to wdg2.

args[0] (wdg2add2)

Result of adding wdg2can1 to wdg2.

args[0] (wdg2edt1)

Result of breaking up the smoothly tracked edges of wdg2can1 using a paint program.

args[0] (wdg2thr1)

Result of thresholding wdg2can1 at a pixel value of 128.

args[0] (wdg2and1)

Result of inverting wdg2thr1 and then logical ANDing with the original.

args[0] (wdg2add1)

Result of pixel adding wdg2and1 to wdg2can1.

args[0] (wdg2bld1)

Result of blending wdg2 and wdg2can1 with the blending ratio set to X=0.5.

args[0] (wdg2bld2)

Result of blending wdg2 and wdg2can1 with the blending ratio set to X=0.7.

args[0] (wdg2str1)

Result of contrast stretching wdg2 and wdg2can1 and then blending with a blending ratio of X=0.5.

args[0] (wdg2bld3)

Result of blending wdg2can1 and wdg2 with a blending mask made from can1thr1.

args[0] (wdg2hou1)

Hough transform of wdg2can1.

args[0] (wdg2deh1)

Hough transform of wdg2can1 mapped back into cartesian image coordinate space.

args[0] (wdg2deo1)

Result of pixel adding wdg2deh1 and wdg2.

args[0] (wdg2hou3)

Hough transform of wdg2sob2.

args[0] (wdg2deh2)

Hough transform of wdg2sob2 mapped back into cartesian image coordinate space.

args[0] (wdg2hou2)

Hough transform of wdg2edt1.

args[0] (wdg2deh3)

Hough transform of wdg2edt1 mapped back into cartesian image coordinate space.

args[0] (wdg2cmp2)

The normalized graylevel orientation image resulting from applying the Prewitt compass Operator to wdg2.

args[0] (wdg2cmp3)

The color label orientation image resulting from applying the Prewitt compass Operator to wdg2.

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

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