Week4: Introduction to OpenCV

Assign 1

• Inspect the pixel x=300, y=25 of ../images/input.jpg
  • Which values have the RGB channels?

Assign 2

• Crop the image "input.jpg" to centered rectangle with half the width and half the height of the pyramid in the photo

Assign 3

• Develop a script which create a puzzle of an image (swapping four regions of a picture in clockwise), and one of the quarter only is shown the green channel as in the example
  1. Taking as input the Lena image avaliable in images directory

Assign 4

• Detecting lane lines on a binary mask
  • Create a masks to be applied e.g. ROI (trapezoid) to lane detection

Assign 5

• Create a code that segmentated the ball of a video using cv2.inRange function
• A video can be found in the link

Assign 6

• Create an application that count the number of coins through an image as in the following images
• Extra: can be extended using CSI camera in real-time and counting

Assign 7

• Detecting lane lines on a binary mask
• Create a masks to be applied e.g. ROI (trapezoid) to lane detection
• Detect lane from the road appling the Hough transform

Assign 8

• Using Hough transform, it is also possible to detect circles
• Use the OpenCV function HoughCircles() to detect circles in an image. Take as input images the coins examples
  • More info related to HoughCircles function can be found in OpenCV documentation