Search found 5 matches

by mkeveney
2019-04-23T12:04:26-07:00
Forum: Users
Topic: Edge feature detection on 'noisy', low-contrast images
Replies: 4
Views: 4137

Re: Edge feature detection on 'noisy', low-contrast images

snibgo: > Can you sketch the required result, eg with Gimp? Here's what I had in mind, though I could do with simple outlines, as produced by fmw42's attempt. http://keveney.com/forum-sample-ideal.png > If this is a photo, the lighting is uneven. The first step might be to correct that. The ideal pr...
by mkeveney
2019-04-22T18:05:54-07:00
Forum: Users
Topic: Edge feature detection on 'noisy', low-contrast images
Replies: 4
Views: 4137

Edge feature detection on 'noisy', low-contrast images

I want to isolate the 'wavy line' feature of the attached image. I thought the approach should be to somehow blur or average the pixel colors first; then apply a threshold operation of some sort. I'd ideally like a black & white image when done. The problem seems to be that the background (for b...
by mkeveney
2019-04-19T19:01:33-07:00
Forum: Users
Topic: Resize 'blur' option not working on 'wand' library.
Replies: 6
Views: 4769

Re: Resize 'blur' option not working on 'wand' library.

By the way.. the code in my initial post lost it's indenting so it won't work in Python, in case anyone tries.
by mkeveney
2019-04-19T18:58:47-07:00
Forum: Users
Topic: Resize 'blur' option not working on 'wand' library.
Replies: 6
Views: 4769

Re: Resize 'blur' option not working on 'wand' library.

> The forum to which you posted was not for Python....
Thanks for the links; I'll read up and redirect my questions.
> I think an old interface to IM had "blur" as a parameter to "resize"...
I suspected something like that. Thanks for the info!
by mkeveney
2019-04-19T17:42:27-07:00
Forum: Users
Topic: Resize 'blur' option not working on 'wand' library.
Replies: 6
Views: 4769

Resize 'blur' option not working on 'wand' library.

First of all, i'm not sure I'm in the right place I'm trying to use the Python 'Wand' binding: http://docs.wand-py.org/en/0.5.2/ Is this the right forum? To get my feet wet, I've ported this script to python: http://old.dylanbeattie.net/magick/filters/result.html Unfortunately, the 'blur' parameter ...