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½ a second before tsunami

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½ a second before tsunami - PowerPoint PPT Presentation


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½ a second before tsunami . This picture was taken on the banks of Sumatra Island (the height of waves was of approx. 32 m = 105 ft). It was found saved in a digital camera, 1 ½ years after the disaster. Probably this is the last image he/ she saw before ending life on Earth! .

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PowerPoint Slideshow about '½ a second before tsunami' - jens


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½ a second before tsunami

This picture was taken on the banks of Sumatra Island (the height of waves was of approx. 32 m = 105 ft). It was found saved in a digital camera, 1 ½ years after the disaster. Probably this is the last image he/ she saw before ending life on Earth!

slide4
Image Enhancement

Brightness control

Contrast enhancement

Noise reduction

Edge enhancement

Zooming

slide6
Image Enhancement
  • Spatial domain techniques
      • Point operations
      • Histogram equalization and matching
      • Applications of histogram-based enhancement
  • Frequency domain techniques
      • Unsharp masking
      • Homomorphic filtering
slide7
Noise Reduction

Noise

geometric

transformation

photometric

transformation

slide8
Basic

Photo Retouching Techniques

  • Clone stamp tool
  • Rubber stamp tool
  • Smudge tool
  • Cropping tool
  • Levels Adjustment
  • Hue/Saturation
  • Correcting Color and Tone
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