KwickClips Artificial Intelligence · 40 sec · free
What does a computer see in a photo?
Short answer. Numbers.
How many values does a colour pixel have?
Three.
Pixels are numbers
| Image | Pixel value |
|---|---|
| Greyscale | 0 to 255 |
| Colour | R, G, B values |
| Photo | grid of pixels |
Remember
| Image = grid of pixels |
| Pixel = numbers |
A computer has no eyes. So what does it see? It sees numbers. A greyscale pixel is zero to two fifty five. A colour pixel has three values. A photo is a grid of them. An image is a grid. Every pixel is a number.
This clip is from the full lesson: Computer Vision: How Machines See — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 9 Artificial Intelligence (417), CBSE Class 10 Artificial Intelligence (417), CBSE Class 11 Artificial Intelligence (843), CBSE Class 12 Artificial Intelligence (843)
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