From http://docs.opencv.org/2.4/modules/core/doc/drawing_functions.html#puttext:
fontScale – Font scale factor that is multiplied by the font-specific base size.
What is the base size for the hershey fonts? I can't find it anywhere.
What is the OpenCV font base size for cv::HersheyFonts?
Viewed 8247
2 Answers
When I use Python getTextSize, it returned tuple data structure.
For example,
textSize = cv2.getTextSize(text=str(act_class_info[0]), fontFace=cv2.FONT_HERSHEY_DUPLEX, fontScale=1, thickness=1)
print(textSize) # ((61, 22), 10)
It looks like (61, 22) is width of three letters and height of one letter in pixel unit. I don't know what the number 10 is meaning.
Related