For drawing a text with a custom font on a image using pillow we use truetype function.
But when I use that and I specify the fontsize, the text which is drawn is not really the exact fontsize which it should've been.
For eg:
draw = ImageDraw.Draw(image)
# specified size
font = ImageFont.truetype(r'devangiri.ttf', 20)
text = 'SOMEWORDS'
# drawing text size
draw.text((5, 5), text, font = font)
When I cross check the output image, and calculate the font size, it is not really equal to 20px which it should've been. As font size is merely height of text, when I calculate that height, both are not same by big values.
How to calculate correct font size to write in truetype ?