python-3.x - 如何正确使用 `cv2.putText` 在图像上绘制阿拉伯文字？ (Python+OpenCV)

Question

我使用 python cv2(window10, python3.6) 在图像中写入文本，当文本为英文时它可以工作，但是当我使用阿拉伯文本时它会在图像中写入乱码。

下面是我的代码:

import cv2 
import numpy as np
blank_image = np.zeros((100,300,3), np.uint8)
font = cv2.FONT_HERSHEY_SIMPLEX 
org = (10, 50) 
fontScale = .5
color = (255, 0, 0)  
thickness = 1
blank_image = cv2.putText(blank_image, "اللغة العربية", org, font,  
                   fontScale, color, thickness, cv2.LINE_AA)
window_name = 'Image'
cv2.imshow(window_name, blank_image) 
cv2.waitKey(0)
cv2.destroyAllWindows()

问题在这里 blank_image = cv2.putText(blank_image, "اللغ٩ العربيو", org, font,
fontScale, color, thickness, cv2.LINE_AA)

Answer 1

fontpath = "arial.ttf" # <== download font
font = ImageFont.truetype(fontpath, 32)
img_pil = Image.fromarray(frame)
draw = ImageDraw.Draw(img_pil)
draw.text((50, 80),'عربي', font = font)
img = np.array(img_pil)
cv2.imshow(window_name, img) 

import cv2 
import arabic_reshaper
from bidi.algorithm import get_display
import numpy as np
from PIL import ImageFont, ImageDraw, Image


cap = cv2.VideoCapture(0)

while(True):
    # Capture frame-by-frame
    ret, frame = cap.read()
    text = "ذهب الطالب الى المدرسة"
    reshaped_text = arabic_reshaper.reshape(text)
    bidi_text = get_display(reshaped_text) 
    fontpath = "arial.ttf" # <== https://www.freefontspro.com/14454/arial.ttf  
    font = ImageFont.truetype(fontpath, 32)
    img_pil = Image.fromarray(frame)
    draw = ImageDraw.Draw(img_pil)
    draw.text((50, 80),bidi_text, font = font)
    img = np.array(img_pil)

    cv2.imshow('window_name', img) 


    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# When everything done, release the capture
cap.release()
cv2.destroyAllWindows()