[人工智能]西北乱跑娃 --- python opencv图像祛噪

一、验证码处理效果展示

verify.jpg

deal.png

result.png

                                                                                      
                                                                                      
                                                                                      
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二、代码展示

import time
import cv2
from PIL import Image
import easyocr
import numpy as np
import cap


def get_resut(photo, driver):
    deal = 'deal.jpg'
    # 图像取颜色通道
    img1 = cv2.imread(photo)
    single = []
    for i in img1.tolist():
        pic_y = ''
        pic = []
        for j in i:
            sums = sum(j)
            x, y, z = j
            if 100 < sums < 300 and x < 80 and y > 40 and z < 80:
                pic_y += '?'
                pic.append(j)
            else:
                pic_y += ' '
                pic.append([255, 255, 255])
        print(pic_y)
        single.append(pic)
    sz = np.array(single, np.uint8)
    img2 = Image.fromarray(sz)
    img2.save(deal)

    # 图像去噪
    img3 = cv2.imread(deal)
    dst = cv2.fastNlMeansDenoisingColored(img3, None, 40, 3, 0, 4)
    _, img4 = cv2.threshold(dst, 200, 255, cv2.THRESH_BINARY)
    binary = Image.fromarray(cv2.cvtColor(img4, cv2.COLOR_BGR2RGB))
    binary.save('result.png', quality=80)