cv2.resize用法

casanava

输入图片，按(800,600)等比例放大，
提示错误：'cv::copyMakeBorder'
哪位大侠可以指点一下？
不胜感激。

import cv2

def process_image(img,_H,_W):
    size = img.shape
    h, w = size[0], size[1]
    #长边缩放为min_side
    scale_h = max(range(h)) / float(_H)
    scale_w = max(range(w)) / float(_W)
    new_w, new_h = int(w/scale_w), int(h/scale_h)
    resize_img = cv2.resize(img, (new_w, new_h))
    # 填充至min_side * min_side
    if new_w % 2 != 0 and new_h % 2 == 0:
        top, bottom, left, right = (_H-new_h)/2, (_H-new_h)/2, (_W-new_w)/2 + 1, (_W-new_w)/2
    elif new_h % 2 != 0 and new_w % 2 == 0:
        top, bottom, left, right = (_H-new_h)/2 + 1, (_H-new_h)/2, (_W-new_w)/2, (_W-new_w)/2
    elif new_h % 2 == 0 and new_w % 2 == 0:
        top, bottom, left, right = (_H-new_h)/2, (_H-new_h)/2, (_W-new_w)/2, (_W-new_w)/2
    else:
        top, bottom, left, right = (_H-new_h)/2 + 1, (_H-new_h)/2, (_W-new_w)/2 + 1, (_W-new_w)/2
    pad_img = cv2.copyMakeBorder(resize_img, int(top), int(bottom), int(left), int(right), cv2.BORDER_CONSTANT, value=[0,0,0])
   
    return pad_img

if __name__ == '__main__':
    image = cv2.imread('YEJ007.jpg')
    img_new = process_image(image,800,600)
    cv2.imwrite("YEJ_01.jpg",img_new)
    cv2.imshow("YEJ_01.jpg", img_new)
    cv2.waitKey()

Tec

我复制过去可以直接运行啊

1. import cv2
   
2. 
   
3. def process_image(img,_H,_W):
   
4.     size = img.shape
   
5.     h, w = size[0], size[1]
   
6.     #长边缩放为min_side
   
7.     scale_h = max(range(h)) / float(_H)
   
8.     scale_w = max(range(w)) / float(_W)
   
9.     new_w, new_h = int(w/scale_w), int(h/scale_h)
   
10.     resize_img = cv2.resize(img, (new_w, new_h))
    
11.     # 填充至min_side * min_side
    
12.     if new_w % 2 != 0 and new_h % 2 == 0:
    
13.         top, bottom, left, right = (_H-new_h)/2, (_H-new_h)/2, (_W-new_w)/2 + 1, (_W-new_w)/2
    
14.     elif new_h % 2 != 0 and new_w % 2 == 0:
    
15.         top, bottom, left, right = (_H-new_h)/2 + 1, (_H-new_h)/2, (_W-new_w)/2, (_W-new_w)/2
    
16.     elif new_h % 2 == 0 and new_w % 2 == 0:
    
17.         top, bottom, left, right = (_H-new_h)/2, (_H-new_h)/2, (_W-new_w)/2, (_W-new_w)/2
    
18.     else:
    
19.         top, bottom, left, right = (_H-new_h)/2 + 1, (_H-new_h)/2, (_W-new_w)/2 + 1, (_W-new_w)/2
    
20.     pad_img = cv2.copyMakeBorder(resize_img, int(top), int(bottom), int(left), int(right), cv2.BORDER_CONSTANT, value=[0,0,0])
    
21.    
    
22.     return pad_img
    
23. 
    
24. if __name__ == '__main__':
    
25.     image = cv2.imread('1.png')
    
26.     img_new = process_image(image,800,600)
    
27.     cv2.imwrite("YEJ_01.jpg",img_new)
    
28.     cv2.imshow("00", img_new)
    
29.     cv2.waitKey()

复制代码

casanava

哪里改动了？没变呀。