OpenCV邮件课程2
原文: https://www.pyimagesearch.com/2014/09/01/build-kick-ass-mobile-document-scanner-just-5-minutes/
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OpenCV
OpenCV邮件课程1
原文: A Guide to Learn OpenCV (https://www.pyimagesearch.com/2018/07/19/opencv-tutorial-a-guide-to-learn-opencv/)
新单词:
contour:轮廓
加载显示图片
import cv2
image = cv2.imread("jp.png")
print(type(image)) # numpy.ndarray
(h, w, d) = image.shape # shape返回一个tuple，有几个维度tuple就会包含几个元素
print("width:{} height:{} depth:{}".format(w, h, d))
cv2.imshow("Image", image)
cv2 …某平台验证码识别
- 验证码问题，如果有两个图片，如何找到这两张照片契合的位置？也就是大图的缺口坐标
主要参考 这篇文章，不过他这个代码写的太复杂了。本身实质就调用了一个opencv的matchTemplate函数
# encoding=utf8
import cv2
import numpy as np
def show(name):
cv2.imshow('Show', name)
cv2.waitKey(0)
cv2.destroyAllWindows()
def main():
small = cv2.imread("small.png", 0)
large = cv2.imread("large.jpeg", 0)
w, h = small.shape[::-1] # 拿到小图的宽高
# small = cv2 …