OpenCV3计算机视觉

对于计算机视觉的人来说是一本福利，很值得入手此书。

import cv2
import numpy as np

img = cv2.imread（“../images/statue_small.jpg“ 0）
cv2.imwrite（“canny.jpg“ cv2.Canny（img 200 300））
cv2.imshow（“canny“ cv2.imread（“canny.jpg“））
cv2.waitKey（）
cv2.destroyAllWindows（）

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-09-10 15:32  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\
     目录           0  2018-09-10 15:32  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 3_Code\
     文件         215  2015-07-08 08:47  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 3_Code\canny.py
     文件         413  2015-07-08 10:03  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 3_Code\contours.py
     文件        1065  2015-07-10 10:08  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 3_Code\contours_2.py
     文件         763  2015-07-10 19:02  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 3_Code\contours_hull.py
     文件         783  2015-07-07 08:10  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 3_Code\fourier.py
     文件         685  2015-07-12 08:18  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 3_Code\hough_circles.py
     文件         405  2015-07-12 07:53  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 3_Code\hough_lines.py
     文件         695  2015-07-08 08:23  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 3_Code\hpf.py
     文件        1067  2015-07-04 08:06  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 3_Code\skin.py
     目录           0  2018-09-10 15:32  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 5_Code\
     文件        2737  2015-04-18 07:58  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 5_Code\depth.py
     文件        1779  2015-04-23 10:06  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 5_Code\disparity.py
     文件        1229  2015-04-17 23:19  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 5_Code\disparity_video.py
     文件         510  2015-09-24 20:01  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 5_Code\segmentation.py
     文件        1007  2015-04-23 09:20  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 5_Code\watershed.py
     目录           0  2018-09-10 15:32  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 6_Code\
     文件         528  2015-05-07 07:54  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 6_Code\brief.py
     文件         701  2015-05-08 02:22  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 6_Code\feat_det.py
     文件        1151  2015-05-09 07:41  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 6_Code\flann.py
     文件         713  2015-05-10 05:38  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 6_Code\generate_descriptors.py
     文件         829  2015-04-04 03:40  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 6_Code\generate_train.py
     文件        1679  2015-05-10 05:47  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 6_Code\homography.py
     文件        1626  2015-05-10 04:03  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 6_Code\scan_for_matches.py
     文件         470  2015-05-06 08:03  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 6_Code\sift.py
     目录           0  2018-09-10 15:32  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 7_Code\
     目录           0  2018-09-10 15:32  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 7_Code\car_detector\
     文件        1912  2015-06-01 01:58  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 7_Code\car_detector\detector.py
     文件        2959  2015-06-01 04:32  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 7_Code\car_detector\non_maximum.py
     文件         386  2015-05-30 20:10  Learning_OpenCV_3_Computer_Vision_with_Python_Second_Edition_Code\Chapter 7_Code\car_detector\pyramid.py
............此处省略41个文件信息