another stencil related question

is there a filter or a script that "decomposes" an indexed image into several layers ?
not sure if im using the correct words....
decompose seems to relate to black and white

to clarify: in case of the tiger i made with saulgoode's quantize script



what if i want to have each colour on a seperate layer ?
the manual way would be to use the 'Select by Colour Tool' and fill layers, one at a time with the colour

is there a script that does this automatically for me ?

lol, thanks again saulgoode

this is great !

there is something strange going on with this script
after i applied the script and made the original layer invisible, everything is gone
i can see the individual layers in the layer-folder, but they are not displayed

once i drag every layer out of the folder, they are visible

Maybe they are linked, see if the chain looking icon is selected.

I'm not seeing anything amiss.

Here is the XCF file that resulted from running the filter:

http://barn.kerosenecow.net/u/saul/m/tiger-xcf/

i tried it again - same result

here is the xcf

EDIT: sorry, wrong file
now with correct one

It seems OK to me. Just to make sure that I understand what you're saying...



After running the script, you are hiding the layer named "[G'MIC] Smooth [anisotropic] : -gimp_anisotropic_smoothing 100,0.28,1,0.6,1.1,0.8,30,2,0,1,2,0,1,0,0" and then the entire image becomes transparent (and all you see is a checkerboard)?

no, sorry i uploaded the wrong file
i re-attached the correct one

your xcf is still downloading...
i dont know how to measure the exact dl-speed
i had a tool for that but i cant find it anymore
i think it took about 13min

i installed a tool, it says dl-speed is 950kbit/s

Apparently GIMP is not designed to handle Indexed mode images that contain layer groups. I hesitate to call it a bug because if you add a layer group to an RGB image, the "Image->Mode->Indexed" option becomes inaccessible. And as you noted, dragging every layer out of the folder causes them to become visible. My guess is that the developers are quite aware of this limitation.

I could modify my script to correct for this, but I wish to investigate a little further.

To "fix" your image, first convert it to RGB then add a transparent layer to the layer group (this seems to be the only way to trigger an update of the image). Afterward, you can delete the transparent layer. Note that since your RGB image has a layer group, converting it back to Indexed is no longer an option.

thanks for looking into that !
will do as you say

About what I was expecting. I guess it will have to do for now.

I have substituted a smaller image for the one that was 90Mb so nobody else has to waste 13 minutes downloading it. Thank you for checking it for me.