...

View Full Version : Dif. image on selection



Membie
04-04-2003, 10:04 AM
How is this done... (http://www.rawplaster.com/poo8.gif)
On image selection a different image is visuable. Just code or how it is done curious ;)

chrismiceli
04-04-2003, 02:25 PM
it has to be how the gif was coded, that is just a picture file.

arnyinc
04-04-2003, 02:27 PM
That's purely an image editing trick done in Photoshop or PSP (or something equivalent). Here's a tutorial for Photoshop. I didn't understand what the tutorial was referring to in some of the steps, so my results were poor.



First get both your source pics on different layers. Make sure they're cropped to the same size.

1. Click the Channels tab, make a new channel, zoom in a lot (until you can see the individual pixels) and use the pencil tool to make 2 white points diagonal to eachother. Use the rectangle marquee tool to select those 4 pixels (2 dark and 2 white pixels like a checkerboard with only 4 squares). Click Edit on the menu and go down to Define Pattern.

2. Use the paintbucket tool and change the Fill: from foreground to pattern, then select the new pattern. Fille the whole alpha 1 channel with the pattern and ctrl+click to select it.

3. Click the color box and type "00007f" (without the quotes) into the big box at the bottom. It should come out as dark blue. Make a new layer and fill the selected area with the blue. Deselect.

4. Make a new layer and fill with white. Change the filter (under the Layers/Channels/Paths tab) to saturate. Move it so its above the to-be-hidden source pic and click ctrl+e.

5. Ctrl+click the blue grid layer. Go to the hidden source pic and delete the selected area.

Make sure the regular pic is at the bottom, hidden is above that, and the blue is above that. Tweak the fill% of the hidden pic until it's hidden sufficiently, but you can still see it well with the blue layer visible.

Membie
04-04-2003, 05:43 PM
By now / more awake, I know: It is "purely image editting".... ;) so, if any of you mods would be so kind to move this thread to the graphic section... ;)

Thanks 'arnyinc' but, I do understand all steps, and this isn't going to work....
Refrase: which version Photoshop was / is this tut related to?

Better yet (or is it: jet?): .. is this tut online? Url?

Thanks in adv. ;)

arnyinc
04-07-2003, 04:46 PM
Originally posted by Membie
I do understand all steps, and this isn't going to work....

Ok. I've seen some people get some nice results using this tutorial though.


Originally posted by Membie
which version Photoshop was / is this tut related to?


I used an older version, specifically 5.0. It was likely created with a more recent version in mind though.


Originally posted by Membie
Better yet (or is it: jet?): .. is this tut online? Url?


http://www.codingforums.com/showthread.php?s=&threadid=17687



EZ Archive Ads Plugin for vBulletin Copyright 2006 Computer Help Forum