animation/fourcell/notes/generate_text.py

import cv2
import numpy as np

w=10200
dpi = round(w/8.5)
fontSize = round((dpi / 96) / 2)

#(label_width, label_height), baseline = cv2.getTextSize(label, FONT, FONT_SCALE, FONT_THICKNESS)
#label_patch = np.zeros((label_height + baseline, label_width, 3), np.uint8)
#label_patch[:,:] = bg_color

def generate_text (text, fontSize, rotation) :
	rgb_color=(255,255,255)
	color = tuple(reversed(rgb_color))
	
	print(rotation)
	print(fontSize)
	print(text)
	print(len(text))
	(w, h), baseline = cv2.getTextSize(text, cv2.FONT_HERSHEY_PLAIN, fontSize, 2)
	print(f'{w}x{h}')
	image = np.zeros((h + baseline, w, 3), np.uint8)
	image[:] = color
	image = cv2.cvtColor(image, cv2.COLOR_BGR2BGRA)
	image = cv2.putText(image, text, (0, h + round(baseline/2)), cv2.FONT_HERSHEY_PLAIN, fontSize, [0, 0, 0], 1, cv2.LINE_AA)

	if rotation == 90 :
		image = cv2.rotate(image, cv2.ROTATE_90_CLOCKWISE)
	elif rotation == -90 :
		image = cv2.rotate(image, cv2.ROTATE_90_COUNTERCLOCKWISE)

	cv2.imwrite('test.png', image)

generate_text("example", fontSize, 90)