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Home/ Questions/Q 9129013
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Editorial Team
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Editorial Team
Asked: June 17, 20262026-06-17T07:39:04+00:00 2026-06-17T07:39:04+00:00

I want to write to an image a formatted text. OpenCV offers only a

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I want to write to an image a formatted text. OpenCV offers only a limited set of default fonts. Is it possible to use others? For example to read them from the *.ttf file (in Ubuntu)?

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  1. Editorial Team
    Editorial Team
    2026-06-17T07:39:05+00:00Added an answer on June 17, 2026 at 7:39 am

    It’s possible to use other fonts but you need to link the Qt library to OpenCV and use the cvAddText function with a cvFontQt

    http://docs.opencv.org/modules/highgui/doc/qt_new_functions.html#addtext

    http://docs.opencv.org/modules/highgui/doc/qt_new_functions.html#fontqt

    There are other solutions you might try, with more or less the same performance as OpenCV. For instance, you can use CAIRO to write fonts into the image.

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