: How can I stop GIMP's Fuzzy Select tool from over-selecting? I don't have a good way to explain this just using words, so here's a partial screenshot: Even when I set the threshold to

@Samaraweera207

I think the problem is because you have different areas of transparency - but the Fuzzy select tool works by comparing differences in colour.

Here's a workaround that might solve it for you.


Create a white background layer below the image layer/s, and enable its visibility.
Set the fuzzy select tool options to Select by: Composite and Sample Merged
Try to make your selection again.
When you have finished, you can hide the background layer visibility, or just delete it.

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@Dunderdale640

Because it selects by color, and the difference between the black area and the near-black area is not color but opacity (you can use the Pointer dialog to check this). To achieve what you want:


Layer>Transparency>Alpha to selection to generate a selection based on transparency
Select>Selection editor to open the selection editor. You will get a "negative" of your image (white is what is fully selected, and the "Alpha to selection" selects pixels according to their opacity).
Click on the white part (this acts as a "Select by color" on the selection values) and this should restrict your selection to the fully opaque bits.


Alternative method:


Layer>Transparency>Alpha to selection to generate a selection base don transparency
Select>Save to channel to save the selection. At that point the saved channel is the "active drawable" and so the Paint tools will act on it.
Use the Threshold tool to remove the gray band.
In the Channels list, right click and Channel to selection to make a selection from the result.

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