如何修复操作既不是Array OP Array＆＃x27;在图像中添加水印时

Question

我是OpenCV和Python的新手。我正在尝试将水印添加到图像中，并遵循此YouTube教程： https://www.youtube.com/watch?v=zbj3ey4s9r8

这是我遇到的错误：

trackback（最近的最新通话）：文件 “ c：\ user \ user \ desktop \ watermark \ watermark3.py”，第27行， 结果= cv2.AddWeighted（ROI，1，徽标，0.3,0）cv2.error：OpenCV（4.5.5） D：\ a \ opencv-python \ opencv-python \ opencv \ modules \ core \ src \ src \ arithm.cpp：650： 错误：（-209：输入参数的大小不匹配）操作是 两者都不是“数组OP数组”（其中数组的大小相同且相同 频道的数量），也不是“ Array OP标量”，也不是“标量OP数组” 函数'cv :: arithm_op'

我认为我遵循视频中相同的指示：

import cv2
import numpy as np
import glob
import os

logo = cv2.imread("images/testlogo2.png")
h_logo, w_logo, _=logo.shape
print(h_logo, w_logo)

images_path = glob.glob("C:/Users/User/Desktop/testimage/*.*")
#deciding the position of the logo
for img_path in images_path:
    img = cv2.imread(img_path)
    h_img, w_img, _=img.shape
    print(h_img, w_img)
    center_x = int(w_img/2)
    center_y = int(h_img/2)
    top_y=center_y+int(h_logo/2)
    left_x=center_x+int(w_logo/2)
    bottom_y=h_logo+top_y
    right_x=w_logo+left_x

    #roi
    roi = img[top_y:bottom_y, left_x:right_x]

    # Add the Logo to the Roi
    result = cv2.addWeighted(roi,1,logo,0.3,0)

    # Replace the ROI on the image
    img[top_y: bottom_y, left_x: right_x] = result

    # Get filename and save the image
    filename = os.path.basename(img_path)
    cv2.imwrite("C:/Users/User/Desktop/testimage/new/logo_"+filename,img)

print("Watermark added to al the images")