- What is sys.argv[1]?
- Write a piece of code to add a first_number argument of the int type and include the help first number to be added using parser.add_argument().
- Write a piece of code to save the imagine img to disk with the name image.png.
- Create the capture object using cv2.VideoCapture() to read from the first camera that's connected to your computer.
- Create the object capture using cv2.VideoCapture() to read from the first camera connected to your computer and print the CAP_PROP_FRAME_WIDTH property.
- Read an image and save it to disk with the same name but ending in _copy.png (for example, logo_copy.png).
- Create a script (read_video_file_backwards_save_video.py) that loads a video file and creates another played backwards (containing the last frame of the video first and so on).
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You're reading from Mastering OpenCV 4 with Python
Alberto Fernndez Villn is a software engineer with more than 12 years of experience in developing innovative solutions. In the last couple of years, he has been working in various projects related to monitoring systems for industrial plants, applying both Internet of Things (IoT) and big data technologies. He has a Ph.D. in computer vision (2017), a deep learning certification (2018), and several publications in connection with computer vision and machine learning in journals such as Machine Vision and Applications, IEEE Transactions on Industrial Informatics, Sensors, IEEE Transactions on Industry Applications, IEEE Latin America Transactions, and more. As of 2013, he is a registered and active user (albertofernandez) on the Q&A OpenCV forum.
Read more about Alberto Fernández Villán
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Alberto Fernndez Villn is a software engineer with more than 12 years of experience in developing innovative solutions. In the last couple of years, he has been working in various projects related to monitoring systems for industrial plants, applying both Internet of Things (IoT) and big data technologies. He has a Ph.D. in computer vision (2017), a deep learning certification (2018), and several publications in connection with computer vision and machine learning in journals such as Machine Vision and Applications, IEEE Transactions on Industrial Informatics, Sensors, IEEE Transactions on Industry Applications, IEEE Latin America Transactions, and more. As of 2013, he is a registered and active user (albertofernandez) on the Q&A OpenCV forum.
Read more about Alberto Fernández Villán