Relative text size put text cv2

def get_optimal_font_scale(text, width):
    for scale in reversed(range(0, 60, 1)):
      textSize = cv.getTextSize(text, fontFace=cv.FONT_HERSHEY_DUPLEX, fontScale=scale/10, thickness=1)
      new_width = textSize[0][0]
      #print(new_width)
      if (new_width <= width):
          return scale/10
	return 1

Source: stackoverflow.com

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