On 2018-12-21 12:01, Daumail Alain via gimp-user-list wrote:
The png image is in indexed color mode.
I presume that white or black is not one of the colors in the original
image.
Setting Image in RGB mode ( Image > mode > RGB ) permits the usage of
all colors.
Great. That's it. After that, I could do Layer > "New Layer" >
"Fill with: White", and actually get white!
Thanks. Spencer
yours, Alain
Le 21/12/2018 à 18:35, Spencer Graves a écrit :
On 2018-12-21 11:01, Alexandre Prokoudine wrote:
Spencer,
I tried replicating the issue you ran into and didn't manage to. If
you can share your PNG file, that might help (if there's a bug in
GIMP).
See
"https://www.dropbox.com/sh/uwxubmh4lcoxx3n/AABUbehkTYfKd0InpenoyEZXa?dl=0";.
This contains "CCL-Logo-H2.png" and "CCL-Logo1_6.xcf". I imported
the png file, did Image > "Canvas size" > [Height = 251, y = 96] >
Resize, then saved the result as the xcf file.
If the dropbox link doesn't work for you, please suggest how I
can get around this problem. My initial post had the png file
attached, but the mailman software stripped it.
Thanks,
Spencer
Alex
On Fri, Dec 21, 2018 at 7:58 PM Spencer Graves
<spencer.gra...@effectivedefense.org> wrote:
I solved this problem following a post "Re: frustrated" by
Alexandre Prokoudine via gimp-user-list <gimp-user-list@gnome.org>.
Prokoudine suggested starting File > New. I did that, specifying
width
and height to match the image for which I wanted white (not
transparent)
background. I also clicked "Advanced Options" > "Fill with" White,
then
"OK". Then I copied the image for which I needed a white
background and
pasted it onto the new file. File > "Export as" png confirmed that I
had fixed the problem.
Someone else could probably provide an easier, more direct
way to
do this, but this worked.
Thanks,
Spencer Graves
On 2018-12-21 03:20, Spencer Graves wrote:
How can I control background color?
I've done File > Open > [a png file with a transparent
background].
This gives me an image with a transparent background. I
need a
white background. I try Layer > "New Layer" > White, and the
layer is
NOT white but a teal green that matches one of the colors in the
image
I opened. Layer > "New Layer" > "Background color" gives me the same
teal green, which the computer seems to think is white. Layer > "New
Layer" > "Foreground color" gives me black, which matches another of
the colors in the image. I've tried using the "Bucket Fill" tool
with
the new layer, so far without success.
The image I'm trying to modify is the logo for the Citizens'
Climate Lobby, "CCL-Logo-H2.png", which I found by downloading the
entire web page from their web site (attached, in case your email
system will support this). I'm using it in a place with a black
background, and all the lettering disappears. See
"www.kkfi.org/program-episodes/citizens-climate-lobby-carbon-fee-dividend".
I've tried this with both GIMP 2.10.8 and 2.8.22 under macOS
10.14.2.
The capability surely exists. Sadly, my web search efforts
and
experimentation have so far failed to find how to fix this.
Suggestions?
Thanks,
Spencer Graves
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