POV-Ray : Newsgroups : povray.binaries.images : Another post_process: find_edges - find_edges.jpg (1/1) Server Time
2 Oct 2024 18:22:44 EDT (-0400)
  Another post_process: find_edges - find_edges.jpg (1/1) (Message 25 to 34 of 44)  
<<< Previous 10 Messages Goto Latest 10 Messages Next 10 Messages >>>
From: Chris Huff
Subject: Re: find_edges take two - find_edges2.jpg (1/1) - find_edges2b.jpg (1/1)
Date: 26 Apr 2000 11:35:41
Message: <chrishuff_99-6DC704.10384126042000@news.povray.org>


Post a reply to this message

From: Chris Huff
Subject: Re: Another post_process: find_edges - find_edges.jpg (1/1)
Date: 26 Apr 2000 11:49:06
Message: <chrishuff_99-8BD987.10520726042000@news.povray.org>
In article <jerry-E0257F.08332426042000@news.povray.org>, Jerry 
<jer### [at] acusdedu> wrote:

> Wow! Are these extra post-processors going to be part of the MegaPOV?

That is possible, it depends on Nathan...I will be uploading the source 
code, as soon as I finish a couple final touches.
Here is the current list of working post_process filters I have created:
clip_colors {COLOR}
    Clips the colors in the image so none of the components exceed the 
components in the given color.

invert
    Inverts the image.

find_edges (syntax still in development)
    The "cartoon-like" filter, finds the edges in the image and marks 
them a specified color.

blur_matrix (syntax still in development)
    Takes a matrix of values and applies it to each pixel in the image. 
Hard to explain, but useful for blurring in specific ways.

color_matrix < AA, AB, AC,
               BA, BB, BC,
               CA, CB, CC>
    Transforms the colors of the image with a 3*3 matrix.

-- 
Christopher James Huff - Personal e-mail: chr### [at] yahoocom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://chrishuff.dhs.org/
TAG Web page: http://tag.povray.org/


Post a reply to this message

From: Glen Berry
Subject: Re: find_edges take two - find_edges2.jpg (1/1) - find_edges2b.jpg (1/1)
Date: 26 Apr 2000 11:54:11
Message: <WxAHOaLWjtZWG0pAfKF9IW6Cd8Nl@4ax.com>
On Tue, 25 Apr 2000 22:31:05 -0500, Chris Huff
<chr### [at] yahoocom> wrote:

>And here is the version including color edge detection:

This is looking pretty good. It might also pay to render the file with
a low color depth that used dithering to imitate a printing press's
halftoning? (This assumes you want a comic *book* appearance.)

Then again, how hard would it be to create an actual half-tone pattern
for an image?

Later,
Glen Berry

( Remove the "7" from 7no### [at] ezwvcom to email me. )


Post a reply to this message

From: David Heys
Subject: Blinky. re:Find Edges (67k b/u)
Date: 26 Apr 2000 13:25:38
Message: <39072692@news.povray.org>
Hey Chris,

This feature looks like it's got possibilities. If I gave you the code,
could you try doing this fella with your edging patch? I'd be interested to
see how it compares to the cumbersome process I used in Photoshop to make
the second image.

David


Post a reply to this message


Attachments:
Download 'blinky1.jpg' (27 KB) Download 'blinky2.jpg' (41 KB)

Preview of image 'blinky1.jpg'
blinky1.jpg

Preview of image 'blinky2.jpg'
blinky2.jpg


 

From: TonyB
Subject: Re: find_edges take two - find_edges2.jpg (1/1) - find_edges2b.jpg (1/1)
Date: 26 Apr 2000 13:47:36
Message: <39072bb8@news.povray.org>
I would have to agree with Bob here, that I don't like lines around the
shadows. Leave it in, but allow us to control whether or not they have them.


Post a reply to this message

From: Chris Huff
Subject: Re: find_edges take two - find_edges2.jpg (1/1) - find_edges2b.jpg (1/1) - tree.jpg (1/1)
Date: 26 Apr 2000 14:02:16
Message: <chrishuff_99-53106E.13044026042000@news.povray.org>


Post a reply to this message


Attachments:
Download 'find_edges2b.jpg' (1 KB) Download 'tree.jpg' (51 KB)

Preview of image 'tree.jpg'
tree.jpg


 

From: Chris Huff
Subject: Re: find_edges take two - find_edges2.jpg (1/1) - find_edges2b.jpg (1/1)
Date: 26 Apr 2000 14:05:18
Message: <chrishuff_99-4D7A6F.13081826042000@news.povray.org>


Post a reply to this message

From: Chris Huff
Subject: Re: Blinky. re:Find Edges (67k b/u)
Date: 26 Apr 2000 15:44:50
Message: <chrishuff_99-306E88.14474926042000@news.povray.org>
In article <39072692@news.povray.org>, "David Heys" <sou### [at] gcinet> 
wrote:

> This feature looks like it's got possibilities. If I gave you the 
> code, could you try doing this fella with your edging patch? I'd be 
> interested to see how it compares to the cumbersome process I used in 
> Photoshop to make the second image.

Go ahead and e-mail me the code(or upload it to one of the groups here), 
and I will try it out.

-- 
Christopher James Huff - Personal e-mail: chr### [at] yahoocom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://chrishuff.dhs.org/
TAG Web page: http://tag.povray.org/


Post a reply to this message

From: Chris Huff
Subject: Re: find_edges take two - find_edges2.jpg (1/1) - find_edges2b.jpg (1/1)
Date: 26 Apr 2000 15:46:38
Message: <chrishuff_99-B05AC4.14493826042000@news.povray.org>


Post a reply to this message

From: Mr  Art
Subject: Re: find_edges take two - find_edges2.jpg (1/1) - find_edges2b.jpg (1/1) - tree.jpg (1/1)
Date: 26 Apr 2000 16:20:51
Message: <39074FBC.F8456885@gci.net>
Still too cool. I can see all kinds of stuff
I would want to try this on. Can't wait for
the release.
Mr. Art

Chris Huff wrote:
> 
> In article <39066C1E.84AE671B@gci.net>, "Mr. Art" <mr.### [at] gcinet>
> wrote:
> 
> > This is just too cool. Press on with the work.
> > I would love to see a tree rendered this way.
> 
> Here you go...
> Sorry about the tree, I didn't feel like messing with a full-blown plant
> macro so I just wrote a simple one-use thing...and notice the lines are
> still not anti-aliased. I am working on that.
> 
> --
> Christopher James Huff - Personal e-mail: chr### [at] yahoocom
> TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
> Personal Web page: http://chrishuff.dhs.org/
> TAG Web page: http://tag.povray.org/
> 
>  [Image]


Post a reply to this message

<<< Previous 10 Messages Goto Latest 10 Messages Next 10 Messages >>>

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.