Python opencv 错误代码：cv2.LINE_AA 'module' object has no attribute 'LINE_AA'

小咪咪 2021-12-03 21:59 336阅读 0赞

在执行YOLOv3\_TensorFlow-master测试，出现如下告警，查出现此处错误的脚本的代码（plot\_utils.py），,如下：

cv2.LINE\_AA 'module' object has no attribute 'LINE\_AA'

发现的问题根源是：

cv2.\_\_version\_\_

发现是2.4的版本，只有3才有LINE\_AA  
解决方法1：

把LINE\_AA替换为CV\_AA

解决方法2：

更新opencv-python,linux平台上执行：sudo pip install -U opencv-python

# coding: utf-8
    
    from __future__ import division, print_function
    
    import cv2
    import random
    
    
    def get_color_table(class_num, seed=2):
        random.seed(seed)
        color_table = {}
        for i in range(class_num):
            color_table[i] = [random.randint(0, 255) for _ in range(3)]
        return color_table
    
    
    def plot_one_box(img, coord, label=None, color=None, line_thickness=None):
        '''
        coord: [x_min, y_min, x_max, y_max] format coordinates.
        img: img to plot on.
        label: str. The label name.
        color: int. color index.
        line_thickness: int. rectangle line thickness.
        '''
        tl = line_thickness or int(round(0.002 * max(img.shape[0:2])))  # line thickness
        color = color or [random.randint(0, 255) for _ in range(3)]
        c1, c2 = (int(coord[0]), int(coord[1])), (int(coord[2]), int(coord[3]))
        cv2.rectangle(img, c1, c2, color, thickness=tl)
        if label:
            tf = max(tl - 1, 1)  # font thickness
            t_size = cv2.getTextSize(label, 0, fontScale=float(tl) / 3, thickness=tf)[0]
            c2 = c1[0] + t_size[0], c1[1] - t_size[1] - 3
            cv2.rectangle(img, c1, c2, color, -1)  # filled
            cv2.putText(img, label, (c1[0], c1[1] - 2), 0, float(tl) / 3, [0, 0, 0], thickness=tf, lineType=cv2.LINE_AA)