Load TrueType Font to OpenCV

Question

Can we load a custom TrueType font and use it with cv2.putText function ?

font = cv2.FONT_HERSHEY_SIMPLEX
cv2.putText(img,\'OpenCV\',(10,500), f         


        

Answer 1

You can also use the library PILasOPENCV to be found at https://github.com/bunkahle/PILasOPENCV to use truetype fonts in combination with Python OpenCV. PIL or Pillow are not needed. The module depends on the library freetype-py. Fonts would be imported like this:

from __future__ import print_function
import PILasOPENCV as Image
import PILasOPENCV as ImageDraw
import PILasOPENCV as ImageFont
import cv2
# was: from PIL import Image, ImageDraw, ImageFont

font = ImageFont.truetype("arial.ttf", 18)
print(font)
im = Image.open("lena.jpg")
draw = ImageDraw.Draw(im)
text = "Lena's image"
draw.text((249,455), text, font=font, fill=(0, 0, 0))
# in PIL:
# print(font.getsize(text))
# mask = font.getmask(text)
print(ImageFont.getsize(text, font))
mask = ImageFont.getmask(text, font)
print(type(mask))
cv2.imshow("mask", mask)
im.show()

This library is a wrapper around the common used PIL functions but works internally with OpenCV.