All labs · 🖼️ Image lab
How computers see
To a computer a picture is just a grid of numbers. Small grids of numbers called kernels blur, sharpen and find edges – the first steps of every computer vision and image AI. With the OpenCV code for each step.
👋 Free demo: try the first 2 lessons and the first tool. Subscribe to unlock everything here and in all the other labs – USD 10 a month (USD 100 a year), or included with lessons.
✨ SubscribeLog in
Picture:
Brightness histogram – how many pixels are dark (left) or bright (right)
🔢 Count objects
Make objects white and the background black (Threshold or Colour mask), then:
🐍 The same steps in Python (OpenCV)
Your steps
Add a step:
Move over the picture. Every pixel is three numbers from 0 to 255: how much red, green and blue light.