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Fuzzy selecting makes part of picture more transparent..
#7
(12-08-2019, 08:43 PM)rich2005 Wrote: Yes, some of the coffee color is in that brown area and a fuzzy select with a threshold of 90 selects it. Not called fuzzy for nothing Wink

A Gimp 2.10 tip  see:  https://i.imgur.com/qKurxgZ.jpg

1. Bottom of the fuzzy select is a tick box labeled 'Draw Mask' That overlays the selection with a magenta mask, you see that the brown area is also affected.

2. Still in the fuzzy select tool, you can click and drag to adjust the threshold and the change is shown in the mask.  You actually need a threshold round the 50 mark.

3. Let go the mouse, the adjusted selection remains and cuts as shown.

When I put on draw mask and click, the magenta color just seems to highlight the same area as the dotted line selection does. Not sure what difference the mask makes?

(12-08-2019, 09:42 PM)Ofnuts Wrote: Yes, got it... Un-check the "anti-aliasing" in the options... or use a more reasonable threshold.

yes you're right it was the high threshold that was doing it, turning the anti-aliasing off didn't prevent it at 90. It's just weird because the lines doesn't show it going outside the coffee area..seems odd it would do that unpredictably?
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RE: Fuzzy selecting makes part of picture more transparent.. - by marigolden - 12-08-2019, 10:26 PM

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