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No new colours

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No new colours drwr 15 Dec 12:02
  No new colours Bob Meetin 15 Dec 13:37
   No new colours drwr 15 Dec 13:45
    No new colours Sven Neumann 15 Dec 19:18
     No new colours drwr 16 Dec 12:23
      No new colours Torsten Neuer 16 Dec 12:40
No new colours jernej|s-gmane at eternallybored.org (Jernej Simončič 16 Dec 19:25
2010-12-15 12:02:45 UTC (about 14 years ago)
postings
3

No new colours

Hi,

I have saved a gif file with one additional colour (blue).

When I go to edit this file and draw a line in yellow (a new colour) GIMP draws the line in white! When I go to Colours > Map > Rearrange ColourMap... I see black, white and blue.

How do I force GIMP to let me change the foreground colour? I have tried dbl clicking the foreground colour and selecting yellow. Yellow appears as the foreground colour in the toolbox, but when I try to use the Pen tool with yellow selected as the foreground colour GIMP draws the line in WHITE!!!!

BTW I am using 2.6.6 on Win Vista.

Many thanks

Bob Meetin
2010-12-15 13:37:58 UTC (about 14 years ago)

No new colours

drwr wrote:

Hi,

I have saved a gif file with one additional colour (blue).

When I go to edit this file and draw a line in yellow (a new colour) GIMP draws the line in white! When I go to Colours > Map > Rearrange ColourMap... I see black, white and blue.

How do I force GIMP to let me change the foreground colour? I have tried dbl clicking the foreground colour and selecting yellow. Yellow appears as the foreground colour in the toolbox, but when I try to use the Pen tool with yellow selected as the foreground colour GIMP draws the line in WHITE!!!!

BTW I am using 2.6.6 on Win Vista.

Many thanks

This may not be the problem, but make sure it's in RGB mode ( Image --> Mode --> RGB). Maybe put the image up on a website and send out a link to it to the email group.

2010-12-15 13:45:40 UTC (about 14 years ago)
postings
3

No new colours

drwr wrote:

Hi,

I have saved a gif file with one additional colour (blue).

When I go to edit this file and draw a line in yellow (a new colour) GIMP draws the line in white! When I go to Colours > Map > Rearrange ColourMap... I see black, white and blue.

How do I force GIMP to let me change the foreground colour? I have tried dbl clicking the foreground colour and selecting yellow. Yellow appears as the foreground colour in the toolbox, but when I try to use the Pen tool with yellow selected as the foreground colour GIMP draws the line in WHITE!!!!

BTW I am using 2.6.6 on Win Vista.

Many thanks

This may not be the problem, but make sure it's in RGB mode ( Image --> Mode --> RGB). Maybe put the image up on a website and send out a link to it to the email group.

Hi Bob,

This seems to be the problem. Gimp will only save as either indexed or greyscale. I can change the mode whenever I need to edit.

Thanks for the quick and insightful response.

Sven Neumann
2010-12-15 19:18:21 UTC (about 14 years ago)

No new colours

On Wed, 2010-12-15 at 14:45 +0100, drwr wrote:

This seems to be the problem. Gimp will only save as either indexed or greyscale. I can change the mode whenever I need to edit.

It's not GIMP who makes this decision. The file format you have chosen (GIF) only supports grayscale or up to 256 indexed colors. Unless you have a very good reason to use GIF, you should consider switching to PNG instead.

Sven

2010-12-16 12:23:43 UTC (about 14 years ago)
postings
3

No new colours

On Wed, 2010-12-15 at 14:45 +0100, drwr wrote:

This seems to be the problem. Gimp will only save as either indexed or greyscale. I can change the mode whenever I need to edit.

It's not GIMP who makes this decision. The file format you have chosen (GIF) only supports grayscale or up to 256 indexed colors. Unless you have a very good reason to use GIF, you should consider switching to PNG instead.

Sven

Thanks for this Sven. The image is animated, so I am stuck with GIF.

Torsten Neuer
2010-12-16 12:40:25 UTC (about 14 years ago)

No new colours

Am 16.12.2010 13:23, schrieb drwr:

On Wed, 2010-12-15 at 14:45 +0100, drwr wrote:

This seems to be the problem. Gimp will only save as either indexed or greyscale. I can change the mode whenever I need to edit.

It's not GIMP who makes this decision. The file format you have chosen (GIF) only supports grayscale or up to 256 indexed colors. Unless you have a very good reason to use GIF, you should consider switching to PNG instead.

Sven

Thanks for this Sven. The image is animated, so I am stuck with GIF.

Not quite. The animated pendant to PNG is MNG and also supported by Gimp. It depends, however, whether the target application, i.e. the application that should display the image, supports this image format, as support for MNG is not yet as wide-spread as for PNG.

Torsten

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jernej|s-gmane at eternallybored.org (Jernej Simončič
2010-12-16 19:25:18 UTC (about 14 years ago)

No new colours

On Thu, 16 Dec 2010 13:40:25 +0100, Torsten Neuer wrote:

Not quite. The animated pendant to PNG is MNG and also supported by Gimp. It depends, however, whether the target application, i.e. the application that should display the image, supports this image format, as support for MNG is not yet as wide-spread as for PNG.

I'm pretty sure that APNG is more widely supported than MNG - but neither are as ubiquitous as animated GIF.