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High precision color picker

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mailman.25.1578571207.24695... 09 Jan 18:23
  High precision color picker Elliott Balsley 09 Jan 18:22
   High precision color picker Alexandre Prokoudine via gimp-user-list 10 Jan 16:13
    High precision color picker Elliott Balsley 10 Jan 17:30
Elliott Balsley
2020-01-09 18:22:59 UTC (18 days ago)

High precision color picker

On Thu, Jan 9, 2020 at 3:45 AM Ofnuts wrote: I would strongly advise using the Pixel option instead. It gives exactly the precision of the actual pixel data.

So if the image is 16-bit float, this will yield (0,014557;0,053680;0,827148) for what is (32;66;235) in RGB. That should be precise enough :)

Hi. This sounds promising. Can you please explain what you mean by "the pixel option" ? How can I enter values like this? I would actually prefer 16-bit integer, but float could work too.

Alexandre Prokoudine via gimp-user-list
2020-01-10 16:13:05 UTC (18 days ago)

High precision color picker

On Thu, Jan 9, 2020 at 9:23 PM Elliott Balsley wrote:

I would strongly advise using the Pixel option instead. It gives exactly the precision of the actual pixel data.

So if the image is 16-bit float, this will yield (0,014557;0,053680;0,827148) for what is (32;66;235) in RGB. That should be precise enough :)

Hi. This sounds promising. Can you please explain what you mean by "the pixel option" ? How can I enter values like this? I would actually prefer 16-bit integer, but float could work too.

Wait, are we talking about color picker which is a tool for picking colors from images or a color selector dialog when you tell GIMP what color to use for foreground and/or background?

If it's color picker, you can choose the Pixel option in the drop-down list that's in the top right corner of the canvas. In that case, channel values will be displayed in whatever pixel format your image is in: 8-bit int, 16-bit int/float, or 32-bit int/float.

If it's color selection dialog (e.g. what you get when you double-click on the foreground color in the toolbox), then your only option to get better precision right now is to switch from 0.255 to 0..100 at the top of the dialog. That will yield a 0..100 range with one decimal. Not nearly as precise as a full 16-bit int range, I know.

Alex

Elliott Balsley
2020-01-10 17:30:17 UTC (17 days ago)

High precision color picker

On Fri, Jan 10, 2020 at 8:13 AM Alexandre Prokoudine via gimp-user-list < gimp-user-list@gnome.org> wrote:

If it's color selection dialog (e.g. what you get when you double-click on the foreground color in the toolbox), then your only option to get better precision right now is to switch from 0.255 to 0..100 at the top of the dialog. That will yield a 0..100 range with one decimal. Not nearly as precise as a full 16-bit int range, I know.

I'm talking about selecting colors in the toolbox. So I have my answer now, thank you. I'll have to check out the Python scripting.