draw text with background // opencv

draw_text_with_background_opencv.py

import cv2

class DrawText:
	def __init__(self, img, text, font_scale = 1, posX = 10, posY = 10, font = cv2.FONT_HERSHEY_PLAIN, bgColor = (255, 255, 255), textColor = (0, 0, 0), fontThickness = 1, padding = 2):
		self.font_scale = font_scale
		self.font = font
		rectangle_bgr = bgColor
		# set some text
		self.text = text
		# get the width and height of the text box
		(text_width, text_height) = cv2.getTextSize(text, font, fontScale=font_scale, thickness=fontThickness)[0]
		# set the text start position
		text_offset_x = posX
		text_offset_y = img.shape[0] - posY
		# make the coords of the box with a small padding of two pixels
		box_coords = ((text_offset_x, text_offset_y), (text_offset_x + text_width - padding, text_offset_y - text_height - padding))
		cv2.rectangle(img, box_coords[0], box_coords[1], rectangle_bgr, cv2.FILLED)
		cv2.putText(img, text, (text_offset_x, text_offset_y), font, fontScale=font_scale, color=textColor, thickness=fontThickness)