Gimp-Forum.net
Indexed bmp - Export options gone - Printable Version

+- Gimp-Forum.net (https://www.gimp-forum.net)
+-- Forum: GIMP (https://www.gimp-forum.net/Forum-GIMP)
+--- Forum: General questions (https://www.gimp-forum.net/Forum-General-questions)
+--- Thread: Indexed bmp - Export options gone (/Thread-Indexed-bmp-Export-options-gone)



Indexed bmp - Export options gone - eduardolucioac - 12-12-2017

I'm using GIMP 2.8.22.

When I try to export an image to bmp format in indexed mode...

[Image: UMPqBcJ.png]

... the export options dialog no longer appears...

[Image: YHUntD9.png]

... after hit "Export"!

The options dialog only appears when the bmp image is in RGB mode...

[Image: cGuE2EN.png]

This is the expected old behavior...

[Image: w321vo9.png]

---------------------------------------------------

How can I solve this?  Huh


RE: Indexed bmp - Export options gone - Ofnuts - 12-12-2017

Whex I try to export a color indexed image as BMP I  get this:

[attachment=1102]

If I remove the alpha-channel (Image>Flatten image), I do get the dialog but the advanced options are grayed out:

[attachment=1103]



RE: Indexed bmp - Export options gone - rich2005 - 12-13-2017

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.


RE: Indexed bmp - Export options gone - eduardolucioac - 12-13-2017

@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!


RE: Indexed bmp - Export options gone - rich2005 - 12-13-2017

(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


RE: Indexed bmp - Export options gone - eduardolucioac - 12-13-2017

(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.bmp

Done!

Thanks!