extract edges from this image ?

[diegomage]

Im trying with lat filter but not works well ; how i could do this

convert rose_bg_blur_fail.png -lat 3x3+15% jx8MPc9_kuw2_lat10-0.png





Please help me

[fmw42]

try this

Code: Select all

convert u45Uw.png -alpha extract -morphology edgein diamond:1 \
\( -clone 0 -fill black -colorize 100  \) \
+swap -alpha off -compose copy_opacity -composite \
 result.png

see
http://www.imagemagick.org/Usage/morphology/#difference

[diegomage]

I obtain the same result

[diegomage]

the problem is because a crop too near of the edge causing problems for adaptative threeshold

[fmw42]

Sorry, I do not understand your problem

[diegomage]

not problem I solved it

[diegomage]

the problem was that i cropped the image wrong

[diegomage]

now I not have problem with this