On 12/11/2013 09:51 PM, scl wrote:
Select by color (and its brother the fuzzy select tool) don't work for
this because they always fully select the pixels or completely ignore
them. And the text is surrounded by anti-aliasing pixels that are a
blend of the two colors and should be only partly repainted, Otherwise
you obtain a faint red rim (anti-aliasing pixels not selected and not
repainted) or a jagged text ((anti-aliasing pixels selected and
completely obliterated with the new color).
the Color Exchange tool doesn't work well for me, too.
But there's an easier way:
1. Use the Select by Color tool to select the red areas.
If not everything is selected at the first click, increase
the Threshold value in the dialog.
2. Fill the selected area with plain black either with
the Bucket Fill tool or by dragging it from the
Foreground/Background color swatch in the toolbox.
(If your foreground or background color is not black,
then press 'd' first).
The right way to do it is to make the background transparent with either
color-2-alpha or painting in "color erase" mode (this will make the
anti-aliasing pixels partially transparent as needed), then give the new
color to the background either by adding a layer filled with the
background color below the current layer, or by painting the current
layer in "behind" mode.
This said this image had a formed life as a badly compressed JPEG, so
it's not really worth editing.You'll find much better versions of that
image using Google images.
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