Results 1 to 8 of 8

Thread: Edge detect problem

  1. #1
    Guild Apprentice
    Join Date
    Apr 2010
    Location
    Denmark
    Posts
    35

    Default Edge detect problem

    I have been following the tutorial here: http://forums.getpaint.net/index.php...ographers-way/ and it has been working fine. However, when I get to the edge detect part, it misses a lot of them and seems incomplete. The result is something like that shown in the attachment.

    Am I going something wrong? I want to have all the outlines.

    Thanks in advance. Legiazus out
    Attached Images Attached Images

  2. #2
    Administrator waldronate's Avatar
    Join Date
    Mar 2007
    Location
    The High Desert
    Posts
    3,605

    Default

    Your edge detector isn't symmetrical. I would guess that you're defining your own convolution matrix and are missing a sign. Or you're using the edge detect filter rather than Mexican Hat edge detect. The difference between the two is that Mexican Hat detects edges in all directions and edge detect only in a particular direction.

  3. #3
    Guild Apprentice
    Join Date
    Apr 2010
    Location
    Denmark
    Posts
    35

    Default

    Aah, that makes sense. And now I come off as a real newbie - where do I find the Mexican Hat detect?

  4. #4
    Administrator waldronate's Avatar
    Join Date
    Mar 2007
    Location
    The High Desert
    Posts
    3,605

    Default

    http://www.google.com/#hl=en&source=...fd76fcf5f723ec - the first link should have it. It looks to be a user-devised plugin.

  5. #5
    Guild Apprentice
    Join Date
    Apr 2010
    Location
    Denmark
    Posts
    35

    Default

    Thanks for the link! Again, newbie question - how do I install the plugin to Paint.NET?

  6. #6
    Administrator waldronate's Avatar
    Join Date
    Mar 2007
    Location
    The High Desert
    Posts
    3,605

    Default

    No idea, unfortunately. I'm not a Paint.NET user. However, http://www.ehow.com/how_5013787_add-...-paintnet.html has some suggestions.

  7. #7
    Guild Apprentice
    Join Date
    Apr 2010
    Location
    Denmark
    Posts
    35

    Default

    Yup, found a tutorial and now it works just fine. Thanks for the help

  8. #8
    Guild Artisan su_liam's Avatar
    Join Date
    Aug 2007
    Location
    Port Alberta, Regina(IRL: Eugene, OR)
    Posts
    798

    Default

    I prefer the nice omnidirectional edge-finder in photoshop, but that asymetrical edge-find looks really nice as an option.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •