Artificial Intelligence — CBSE Class 10 board question

| Feature | Grayscale Image | RGB Image |
|---|---|---|
| Channels | Single channel (1 plane) | Three channels — Red, Green, Blue |
| Pixel value | One value per pixel (0–255) | Three values per pixel (R, G, B) |
| Storage size | Height × Width | Height × Width × 3 |
| Representation | Shades of gray (black to white) | Full colour image |

A grayscale image stores each pixel using 1 byte (single intensity value), while an RGB image stores each pixel using 3 values combining red, green, and blue intensities to produce colour.

Source: Chapter 5, Sections — Grayscale Images & RGB Images

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• Examiners expect a comparison format (table or two clear points) for "differentiate" questions.
• Key contrast points: number of channels, values per pixel, and how colour is represented.
• Remember: grayscale pixel size = 1 byte; RGB pixel = 3 bytes (one per channel). This is a commonly tested fact.
• Avoid writing long paragraphs — a neat table with 3–4 rows earns full marks efficiently.