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Common test image: Lenna

Explore histogram equalization, look-up tables, and brightness/contrast adjustments for improving image quality and clarity. Learn through practical examples and case studies to enhance your images effectively.

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Common test image: Lenna

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Presentation Transcript

  1. Common test image: Lenna

  2. Histogram of Lenna Image

  3. Aerial Image

  4. Histogram of Aerial Image

  5. Look-up Tables (LUT)

  6. Photoshop Brightness/Contrast Adjustment

  7. LUT for aerial image

  8. Brightness B=13, Contrast C=80

  9. Histogram Equalization: Continuous Case

  10. Examples of HE LUTs

  11. HE: discrete case

  12. Moving window adaptive HE

  13. Histogram equalization example

  14. Bad histogram equalization

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