On Sun, 23 Jan 2005 20:15:54 +0100 Simon Budig <[EMAIL PROTECTED]> wrote:
> claude bouaziz-viallet ([EMAIL PROTECTED]) wrote: > > I must beg you pardon for misleading you with my English syntax ! > > in fact I WANT to obtain the following changes : > > > > > > - black becomes #993300, > > > > - all the other colors take a shade lighter till... > > > > - white is changed to something approaching #efdfd7 ! > > Oh, sorry for jumping on the perceived FAQ... :-) > > For what you *really* want to do you can use the curves tool > (Layers->Colors->Curves). When the curves dialog pops up you can select > the three RGB-Channels individually. Then in each channel you can drag > the control points to get the desired color. In your example this would > be: > > Red channel: Control points at 0, 153 (=#99) and 255, 239 (=#ef). > Green channel: 0, 51 and 255, 223 > Blue channel: 0, 0 and 255, 215 > > This modifies each channel independantly and might result in some > unexpected colors, you need to look if this is what you expect. > > As an alternative you can select #993300 and #efdfd7 as > foreground/background colors and select Filters->Colors->Map->Gradient Map. > Select the "FG->BG" Gradient and apply the filter. This however maps the > colors of the gradient to the image according to the gray value of the > pixels, so this is perfect for grayscale images, but might lose wanted > information for color images. > > Hope this helps. > > Bye, > Simon > > -- > [EMAIL PROTECTED] http://simon.budig.de/ > _______________________________________________ > Gimp-user mailing list > Gimp-user@lists.xcf.berkeley.edu > http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user Hi all, After some time (indeed!) trying all your suggestions (thanks for them all !) I have obtained what I really wanted. The issue was to get from a multiple color photo banniere a two color banniere. In fact, the method I found best was Simon's second method and some steps I added after. Here you go : ...select #993300 and #efdfd7 as > foreground/background colors and select Filters->Colors->Map->Gradient Map. > Select the "FG->BG" Gradient and apply the filter. This however maps the > colors of the gradient to the image according to the gray value of the > pixels, so this is perfect for grayscale images, but might lose wanted > information for color images. The thing I added was suggested by "this is perfect for grayscale images" . Indeed, I changed the banniere to a greyscale picture first (Image > Mode > greyscale) ; then I did what Simon suggested (see above) ; doing so I got a shade lighter of grey ; then, I changed the banniere back to a RGB picture (Image > Mode > RGB) ; then I created a "home Gradiant" - which was for me from #993300 to #efdfd7 - (File > Dialogue > Gradiant > edit > New gradiant > right clik in the color > "extreme left color" : left click held from my selected foreground color (in "The Gimp" tool table) > right clik held in the color > select "extreme right color" : left click held from my selected background color (in "The Gimp" tool table again) ) ; from that, I went back to my banniere to apply that gradiant to it (ie. go back to Simon's method : Filters->Colors->Map->Gradient Map. Select the "FG->BG" Gradient and apply the filter). All this must sound a bit easy to most of you, I believe, but as I first said, I am a total beginner and I must say I am quite proud of my little achievement (hum!hum!!) Thanks again for your patience and HELP. bye, Claude _______________________________________________ Gimp-user mailing list Gimp-user@lists.xcf.berkeley.edu http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
