Easy way to make text semitransparent?

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Jared 2013-1-23

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评论： Giovanni Barbarino 2023-2-20

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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Answer 1

Walter Roberson 2013-1-23

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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 2022-3-19

It is crazy to see that this is still an issue in 2022... :(

Voss 2022-3-19

Lots of things are crazy.

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Answer 2

Matthias Luh 2019-5-3

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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)));