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1) Read an image from file
2) Display an image that you read from file
3) Capture Video using your webcam and display the feed
4) Display back and white live stream from your webcam.
5) Have a slider to change brightness of the webcam live stream. Display.
6) Have a slider to change contrast of the webcam live stream. Display.
7) Capture a snapshot from your webcam. Then display difference between live video stream and this snapshot. (Background subtraction)
8) Display Canny edge image from your live webcam stream
9) Have a slider to change smoothness / sharpness of image from live webcam stream.
10) Display histogram of colors (RGB) from your live webcam stream