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Commit 6aaf3467 authored by Davis King's avatar Davis King
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updated spec

parent 6df0f975
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dlib/image_transforms/edge_detector_abstract.h
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...@@ -90,7 +90,8 @@ namespace dlib ...@@ -90,7 +90,8 @@ namespace dlib
ensures ensures
- #out_img.nr() = horz.nr() - #out_img.nr() = horz.nr()
- #out_img.nc() = horz.nc() - #out_img.nc() = horz.nc()
- let edge_strength(r,c) == abs(horz[r][c]) + abs(vert[r][c]) - let edge_strength(r,c) == sqrt(pow(horz[r][c],2) + pow(vert[r][c],2))
(i.e. The Euclidean norm of the gradient)
- for all valid r and c: - for all valid r and c:
- if (edge_strength(r,c) is at a maximum with respect to its 2 neighboring - if (edge_strength(r,c) is at a maximum with respect to its 2 neighboring
pixels along the line given by edge_orientation(vert[r][c],horz[r][c])) then pixels along the line given by edge_orientation(vert[r][c],horz[r][c])) then
......
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