RSS News FeedChanging Black to White in a GIF File
Message-ID:<b97a0e42-b54f-4f4e-b7df-3f2e90881828@r38g2000prr.googlegroups.com>
Subject:
Changing Black to White in a GIF File
Date:Tue, 21 Oct 2008 20:10:02 +0100
All, I have an image: http://msenux.redwoods.edu/mse/ScienceNight/DAVID.GIF I need an easy way to change all of the black pixels to white so ink won't be wasted when the children print this image at Science Night at our college. I've tried "exchange colors", but that did not work very well. Can anyone give me a good idea? Thanks. David Arnold College of the Redwoods
Message-ID:<1ip6wui.15hznms1xml4i8N%usenet@oakseed.demon.co.uk.invalid>
Subject:
Re: Changing Black to White in a GIF File
Date:Tue, 21 Oct 2008 20:18:26 +0100
David <dwarnold45@suddenlink.net> wrote: > I need an easy way to change all of the black pixels to white so ink > won't be wasted when the children print this image at Science Night at > our college. You need the "Select by Colours" tool (Shift+O). Click on the black background to select all black pixels, then drag the white colour swatch from just below the toolbox to the image and the selected pixels will be filled with white. There's probably an alternative and cleverer way by editing the palette entry for black, but I'll have to leave someone else to explain how. -- James Taylor
Message-ID:<c7f2db25-f1ed-4644-bbea-8966239e2f30@c36g2000prc.googlegroups.com>
Subject:
Re: Changing Black to White in a GIF File
Date:Fri, 24 Oct 2008 18:14:52 +0100
On Oct 21, 4:54=A0pm, use...@oakseed.demon.co.uk.invalid (James Taylor) wrote: > David <dwarnol...@suddenlink.net> wrote: > > James Taylor wrote: > > > > The method is actually simple. Just open the "Colormap" dialogue from > > > the Dialogue menu, select the entry that is black, then press the edi= t > > > button (in the bottom left), and choose white in the normal way, clic= k I did note that, but that might have occurred because of a menu popup and poor screen refresh. Fractal designer is a very old DOS program (that works remarkably well with young budding scientists). http://archives.math.utk.edu/software/msdos/fractals/fdesign/.html Wish us luck tonight. http://msenux.redwoods.edu/mse/ScienceNight/ D. > > > ok, and resave your image. > > > Thank you very much. This worked perfectly with a minimum of fuss. > > > Lots of kids will be happy on Scienc Night. > > Now that *is* a warming thought. :-) > > PS. Did you notice that there seems to be a small patch missing from the > fractal just above the central point? > > -- > James Taylor
Message-ID:<gdlalt$er3$02$1@news.t-online.com>
Subject:
Re: Changing Black to White in a GIF File
Date:Tue, 21 Oct 2008 20:31:09 +0100
Hi, when you load the image with GIMP, first change Picture->Mode to RGB (indtead of indexed). Then select (by color) the all black color and fill the selection with white color (fill entire selection). After this, change the mode back to indexed and save as .GIF good luck Kai Dehrmann David schrieb: > All, > > I have an image: > > http://msenux.redwoods.edu/mse/ScienceNight/DAVID.GIF > > I need an easy way to change all of the black pixels to white so ink > won't be wasted when the children print this image at Science Night at > our college. > > I've tried "exchange colors", but that did not work very well. > > Can anyone give me a good idea? > > Thanks. > > David Arnold > College of the Redwoods
Message-ID:<b97a0e42-b54f-4f4e-b7df-3f2e90881828@r38g2000prr.googlegroups.com>
Subject:
Changing Black to White in a GIF File
Date:Tue, 21 Oct 2008 20:10:02 +0100
All, I have an image: http://msenux.redwoods.edu/mse/ScienceNight/DAVID.GIF I need an easy way to change all of the black pixels to white so ink won't be wasted when the children print this image at Science Night at our college. I've tried "exchange colors", but that did not work very well. Can anyone give me a good idea? Thanks. David Arnold College of the Redwoods
Message-ID:<1ip6wui.15hznms1xml4i8N%usenet@oakseed.demon.co.uk.invalid>
Subject:
Re: Changing Black to White in a GIF File
Date:Tue, 21 Oct 2008 20:18:26 +0100
David <dwarnold45@suddenlink.net> wrote: > I need an easy way to change all of the black pixels to white so ink > won't be wasted when the children print this image at Science Night at > our college. You need the "Select by Colours" tool (Shift+O). Click on the black background to select all black pixels, then drag the white colour swatch from just below the toolbox to the image and the selected pixels will be filled with white. There's probably an alternative and cleverer way by editing the palette entry for black, but I'll have to leave someone else to explain how. -- James Taylor
Message-ID:<c7f2db25-f1ed-4644-bbea-8966239e2f30@c36g2000prc.googlegroups.com>
Subject:
Re: Changing Black to White in a GIF File
Date:Fri, 24 Oct 2008 18:14:52 +0100
On Oct 21, 4:54=A0pm, use...@oakseed.demon.co.uk.invalid (James Taylor) wrote: > David <dwarnol...@suddenlink.net> wrote: > > James Taylor wrote: > > > > The method is actually simple. Just open the "Colormap" dialogue from > > > the Dialogue menu, select the entry that is black, then press the edi= t > > > button (in the bottom left), and choose white in the normal way, clic= k I did note that, but that might have occurred because of a menu popup and poor screen refresh. Fractal designer is a very old DOS program (that works remarkably well with young budding scientists). http://archives.math.utk.edu/software/msdos/fractals/fdesign/.html Wish us luck tonight. http://msenux.redwoods.edu/mse/ScienceNight/ D. > > > ok, and resave your image. > > > Thank you very much. This worked perfectly with a minimum of fuss. > > > Lots of kids will be happy on Scienc Night. > > Now that *is* a warming thought. :-) > > PS. Did you notice that there seems to be a small patch missing from the > fractal just above the central point? > > -- > James Taylor
Message-ID:<gdlalt$er3$02$1@news.t-online.com>
Subject:
Re: Changing Black to White in a GIF File
Date:Tue, 21 Oct 2008 20:31:09 +0100
Hi, when you load the image with GIMP, first change Picture->Mode to RGB (indtead of indexed). Then select (by color) the all black color and fill the selection with white color (fill entire selection). After this, change the mode back to indexed and save as .GIF good luck Kai Dehrmann David schrieb: > All, > > I have an image: > > http://msenux.redwoods.edu/mse/ScienceNight/DAVID.GIF > > I need an easy way to change all of the black pixels to white so ink > won't be wasted when the children print this image at Science Night at > our college. > > I've tried "exchange colors", but that did not work very well. > > Can anyone give me a good idea? > > Thanks. > > David Arnold > College of the Redwoods
Message-ID:<b97a0e42-b54f-4f4e-b7df-3f2e90881828@r38g2000prr.googlegroups.com>
Subject:
Changing Black to White in a GIF File
Date:Tue, 21 Oct 2008 20:10:02 +0100
All, I have an image: http://msenux.redwoods.edu/mse/ScienceNight/DAVID.GIF I need an easy way to change all of the black pixels to white so ink won't be wasted when the children print this image at Science Night at our college. I've tried "exchange colors", but that did not work very well. Can anyone give me a good idea? Thanks. David Arnold College of the Redwoods
Message-ID:<1ip6wui.15hznms1xml4i8N%usenet@oakseed.demon.co.uk.invalid>
Subject:
Re: Changing Black to White in a GIF File
Date:Tue, 21 Oct 2008 20:18:26 +0100
David <dwarnold45@suddenlink.net> wrote: > I need an easy way to change all of the black pixels to white so ink > won't be wasted when the children print this image at Science Night at > our college. You need the "Select by Colours" tool (Shift+O). Click on the black background to select all black pixels, then drag the white colour swatch from just below the toolbox to the image and the selected pixels will be filled with white. There's probably an alternative and cleverer way by editing the palette entry for black, but I'll have to leave someone else to explain how. -- James Taylor
Message-ID:<c7f2db25-f1ed-4644-bbea-8966239e2f30@c36g2000prc.googlegroups.com>
Subject:
Re: Changing Black to White in a GIF File
Date:Fri, 24 Oct 2008 18:14:52 +0100
On Oct 21, 4:54=A0pm, use...@oakseed.demon.co.uk.invalid (James Taylor) wrote: > David <dwarnol...@suddenlink.net> wrote: > > James Taylor wrote: > > > > The method is actually simple. Just open the "Colormap" dialogue from > > > the Dialogue menu, select the entry that is black, then press the edi= t > > > button (in the bottom left), and choose white in the normal way, clic= k I did note that, but that might have occurred because of a menu popup and poor screen refresh. Fractal designer is a very old DOS program (that works remarkably well with young budding scientists). http://archives.math.utk.edu/software/msdos/fractals/fdesign/.html Wish us luck tonight. http://msenux.redwoods.edu/mse/ScienceNight/ D. > > > ok, and resave your image. > > > Thank you very much. This worked perfectly with a minimum of fuss. > > > Lots of kids will be happy on Scienc Night. > > Now that *is* a warming thought. :-) > > PS. Did you notice that there seems to be a small patch missing from the > fractal just above the central point? > > -- > James Taylor
Message-ID:<gdlalt$er3$02$1@news.t-online.com>
Subject:
Re: Changing Black to White in a GIF File
Date:Tue, 21 Oct 2008 20:31:09 +0100
Hi, when you load the image with GIMP, first change Picture->Mode to RGB (indtead of indexed). Then select (by color) the all black color and fill the selection with white color (fill entire selection). After this, change the mode back to indexed and save as .GIF good luck Kai Dehrmann David schrieb: > All, > > I have an image: > > http://msenux.redwoods.edu/mse/ScienceNight/DAVID.GIF > > I need an easy way to change all of the black pixels to white so ink > won't be wasted when the children print this image at Science Night at > our college. > > I've tried "exchange colors", but that did not work very well. > > Can anyone give me a good idea? > > Thanks. > > David Arnold > College of the Redwoods