From: Dennis Borree
Subject: reading gray levels
Date: 27 May 2002 12:28:16
Message: <3cf25ea0$1@news.povray.org>
Is there an easier way to read the gray levels of the pixels in a gray level
bit mapped image other than using the eyedropper in in an imaging software
program? I am trying to use the gray level data to manipulate my images in
POV.
Is there a reader that will give me the levels or change them to another
format that I can manipulate?
Thanks for any help in advance,
Dennis Borree
From: Christoph Hormann
Subject: Re: reading gray levels
Date: 27 May 2002 12:38:29
Message: <3CF26105.A4D2C312@gmx.de>
Dennis Borree wrote:
> > Is there an easier way to read the gray levels of the pixels in a gray level> bit mapped image other than using the eyedropper in in an imaging software> program? I am trying to use the gray level data to manipulate my images in> POV.> Is there a reader that will give me the levels or change them to another> format that I can manipulate?
I'm not sure what you want to do, but you can find out the color of a
pigment (including image_maps) in POV-Ray using the eval_pigment() macro
from functions.inc. If you want to write image data from inside a
POV-Script you can use an ASCII based file format like PGM/PBM and the
#write function.
If this is not what you meant please clarify your question.
Christoph
--
POV-Ray tutorials, IsoWood include,
TransSkin and more: http://www.tu-bs.de/~y0013390/
Last updated 05 May. 2002 _____./\/^>_*_<^\/\.______
From: Dennis Borree
Subject: Re: reading gray levels
Date: 27 May 2002 13:25:25
Message: <3cf26c05$1@news.povray.org>
"Christoph Hormann" <chr### [at] gmxde> wrote in message
news:3CF26105.A4D2C312@gmx.de...
>>> Dennis Borree wrote:> >> > Is there an easier way to read the gray levels of the pixels in a gray
level
> > bit mapped image other than using the eyedropper in in an imaging
software
> > program? I am trying to use the gray level data to manipulate my images
in
> > POV.> > Is there a reader that will give me the levels or change them to another> > format that I can manipulate?>> I'm not sure what you want to do, but you can find out the color of a> pigment (including image_maps) in POV-Ray using the eval_pigment() macro> from functions.inc. If you want to write image data from inside a> POV-Script you can use an ASCII based file format like PGM/PBM and the> #write function.>> If this is not what you meant please clarify your question.>> Christoph>> --> POV-Ray tutorials, IsoWood include,> TransSkin and more: http://www.tu-bs.de/~y0013390/> Last updated 05 May. 2002 _____./\/^>_*_<^\/\.______
Thank you , Christoph !
That is what I am looking for.
Many thanks,
Dennis Borree
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