Is it possible to access or set individual pixels of an image?

[Geoff Canyon Rev]

You should try to do all the updates as one: get the imagedata of the image,
make whatever changes you need to, then set the imagedata of the image
again. There are a few gotchas when setting the imagedata. Make sure the
image is the right size. If you're setting a 10x20 pixel image, you need to
supply exactly 800 bytes of data. That's 4 for each pixel. The first byte is
0, the next three are Red, Green and Blue.

gc

On Wed, Nov 17, 2010 at 12:02 AM, Scott Rossi <scott at tactilemedia.com>wrote:

> Hi Marty:
>
> Maybe this will help -- execute the following in your message box:
> go url "
> http://www.tactilemedia.com/site_files/downloads/pixel_colorize.rev"
>
> See all tutorial stacks (Web link):
> http://www.tactilemedia.com/site_files/software/tutorials.html
>
> Regards,
>
> Scott Rossi
> Creative Director
> Tactile Media, UX Design
>
>
>
> Recently, Marty Billingsley wrote:
>
> > Is it possible to read and set the color of individual pixels in an
> > image?  ImageData is a little incomprehensible.
> >
> > Basically, I'd like to be able to do something like:
> > for each pixel in image "x",  set the color of that pixel to some
> > calculated value (or a value pulled from a pixel of another image)
> >
> > Thanks for any pointers you can give me!
> >
> >   - marty
> >
> > --
> > Marty Billingsley
> > Department of Computer Science
> > The University of Chicago Laboratory Schools
> > _______________________________________________
> > use-revolution mailing list
> > use-revolution at lists.runrev.com
> > Please visit this url to subscribe, unsubscribe and manage your
> subscription
> > preferences:
> > http://lists.runrev.com/mailman/listinfo/use-revolution
> >
>
>
>
>
>
> _______________________________________________
> use-revolution mailing list
> use-revolution at lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your
> subscription preferences:
> http://lists.runrev.com/mailman/listinfo/use-revolution
>