Across
- 1. A small matrix applied to a neighborhood of pixels.
- 6. Increasing edges and fine details in an image.
- 8. A mask or kernel used to modify pixel values.
- 11. An edge-preserving filter used in photography.
- 14. The difference in intensity between image regions.
- 15. The process of removing noise from an image.
- 17. A filter type that preserves edges using rules, not sums.
- 19. The process of improving image quality or appearance.
- 20. A second-derivative filter used for edge detection.
Down
- 2. Reducing noise by averaging pixel values.
- 3. Refers to working directly on the image’s pixel locations.
- 4. A nonlinear filter that removes salt-and-pepper noise.
- 5. A smoothing technique that reduces noise while keeping edges.
- 7. The area or space where image operations are applied.
- 9. A filter type where output is a weighted sum of inputs.
- 10. The smallest unit of a digital image.
- 12. A popular low-pass filter with a bell-shaped curve.
- 13. A first-order derivative filter that detects edges.
- 16. Describes how often pixel values change across space.
- 18. Random variations that degrade image quality.