12-13-2017, 04:43 PM
(12-13-2017, 10:17 AM)rich2005 Wrote: IMHO the OP has answered his own question. An indexed BMP is not RGB and that advanced dialogue is disabled.
What you get as an indexed bmp is an 8 bit image with no transparency.
No details of requirements given, but if transparency is needed, either an indexed png (8 bit) can be used or a gif.
(12-13-2017, 01:48 PM)rich2005 Wrote:(12-13-2017, 01:28 PM)eduardolucioac Wrote: @rich2005 Just to reinforce what my problem is... For bmp images in "Indexed" mode ( https://i.imgur.com/UMPqBcJ.png ) the dialog was displayed exactly as in the image https://i.imgur.com/w321vo9.png . This has changed in the latest version of Gimp (GIMP 2.8.22 in my case). I need these options for compatibility reasons with legacy applications.
How can I access these options again?
Thanks!
Nope.
Even if you are still using Gimp 2.6 If the image is indexed then the RGB options are not available.
see: https://i.imgur.com/XKZRU4A.jpg
Nothing has changed.
Do you understand the difference between an Indexed image and a RGB image? A quick search and this is as good as any: http://www.drububu.com/tutorial/image-types.html
Sorry, but I can assure you with 101% certainty that the options I cite were accessible for Indexed mode. I'm not crazy.
My solution at the moment is this:
- Install "imagemagick" and "xcftools".
- Run the command below in the folder where your "xcf" (gimp native) file is replacing "my_filename" with the name of your file...
Code:
FL_NAME="my_filename" && xcf2png $FL_NAME.xcf -o $FL_NAME.png && convert $FL_NAME.png -background black -alpha remove -alpha off -colors 256 -compress none BMP3:$FL_NAME.bmpDone!
Thanks!