Easy way to make text semitransparent?
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Hi all,
Is there an easy way to make text semitransparent in MATLAB? For instance, if I wanted a textbox label on a graph to be only partially transparent, is there any property to adjust, similar to 'AlphaData' for images?
Thanks!
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Sebastian
2017-11-27
You could change the color of the text by 'color',[0.8,0.8,0.8]
It's not transparent but assuming that you have a white background it is slightly grey to white and looks transparent.
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Walter Roberson
2013-1-23
Unfortunately No. You have to convert the text to a bitmap and display it as an image (or surface) with appropriate transparency.
There are contributions in the FEX to assist with converting text to image.
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Matthias Luh
2019-5-3
Well, not exactly transparent I guess. But if your plot window is white, you could brighten the font up, so it looks transparent...
my_color = [0 0 1]; % [r g b] => blue
text(2, 1, 'normal text', 'Color', my_color);
opacity = 0.4; % 40 percent visible = mainly transparent
text(2, 1.5, 'kinda transparent text', 'Color', (1 - opacity * (1 - my_color)));
I'm sure someone will also find a way for non-white backgrounds...
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Giovanni Barbarino
2023-2-20
for non white bachground you can just take the color of the background and do a convex combination with the text color.
probably something like
f_color = get(gcf,'Color')
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