March 2019
Intermediate to advanced
532 pages
13h 2m
English
Content preview from Mastering OpenCV 4 with Python
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Using all OpenCV text fonts
All the available fonts in OpenCV are as follows:
- FONT_HERSHEY_SIMPLEX = 0
- FONT_HERSHEY_PLAIN = 1
- FONT_HERSHEY_DUPLEX = 2
- FONT_HERSHEY_COMPLEX = 3
- FONT_HERSHEY_TRIPLEX = 4
- FONT_HERSHEY_COMPLEX_SMALL = 5
- FONT_HERSHEY_SCRIPT_SIMPLEX = 6
- FONT_HERSHEY_SCRIPT_COMPLEX = 7
In connection with this, we have coded the text_drawing_fonts.py script, which plots all the available fonts. As all these fonts are in the (0-7) range, we can iterate and call the cv2.putText() function, varying the color, fontFace, and org parameters. We have also plotted lowercase and uppercase versions of these fonts. The key piece of code to perform this functionality is as follows:
position = (10, 30)for i in range(0, 8): cv2.putText(image
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