gimp remove background color to transparent

GIMP REMOVE BACKGROUND COLOR TO TRANSPARENT HOW TO
GIMP REMOVE BACKGROUND COLOR TO TRANSPARENT FULL

Its not pure linear transparency: The treshold sliders are now quite randomly set. This is the result with your stripes: The next one is a more realistic result - the background is mixed with the target in a complex way.

GIMP REMOVE BACKGROUND COLOR TO TRANSPARENT HOW TO

what's the correct way to get the white (or any color) background pixels to be made transparent - and preserving anti-aliasing in the process? It's easy in GIMP, but I haven't found how to do it in any version of Pixelmator. The process: The green can be turned to transparency by applying Colors > Color to Alpha.

GIMP REMOVE BACKGROUND COLOR TO TRANSPARENT FULL

what is the correct way to change the 'white' (or any color) so it's transparent, and it preserves the full anti-aliasing in the same way as GIMP? How to Make an Image Background Transparent: 7 Different Ways. I usually use the magic wand/fuzzy select (Select contiguous region) tool or the Select regions by color tool. Select the appropriate selection tool from the Tool window or the Tools Selection Tools menu on the Layer window. If I use masks, I can get _some_ anti-aliasing, but it's not the same anti-aliasing as the original, with the difference between the original and the 'mask to transparency' shown below: Select the area you want to make transparent. The gray pixels on top are a problem, because they can be visible if put on a black background, like so: The image below has 'gray' pixels on the top of the text, and the bottom loses all anti-aliasing: As far as I've been able to use it, masks have the same problem too. With Pixelmator, I seem to have to choose between less effective options, where I either end up using the select color tool, which will select too much (or not enough) of the black text - either leaving 'grey' pixels from anti-aliasing, or removing the anti-aliasing altogether.

(If you put a black background behind the layer, it stays all black, because there are no 'white' pixels there - there are only the black and alpha/black pixels: With GIMP, it just works.Įxample: I start with the following (zoomed in) anti-aliased image:Īnd a couple of clicks in GIMP, and I get an image with the White changed to transparent - and the anti-aliasing remains correct. You'll have to zoom in quite a bit to see any of what I am trying to show.Īlso keep in mind, the color may be any solid color - blue, heliotrope, whatever. Gimp has a 'Color to Alpha' option, which is useful to easily remove a colored background from an image, while also preserving anti-aliasing. I'm liking Pixelmator, but there's one feature from GIMP that I'm missing - and I'm not quite sure how to do the same thing in Pixelmator.

Gimp remove background color to transparent