Index Ai Academy
Glossary · Phase 0 · Tools

Pixel

Also written: pixels

One dot of an image. In a color image it holds three numbers: how much red, green and blue light it shows.

Try it now

Start with the tent's orange (230, 120, 40) and brighten by 40: as uint8 the red value wraps around to 14, so bright red turns almost black. Clipping stops at 255 instead. Then try pure green against pure blue to see how different their grays are.

Learn it properly

Project: images are arrays · Gray, crop, brighten, watermark and palette tools built on NumPy and Pillow. About 45 minutes.

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