2. 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!

4. Brightness control Contrast enhancement Noise reduction Edge enhancement Zooming

6. Spatial domain techniques Point operations Histogram equalization and matching Applications of histogram-based enhancement Frequency domain techniques Unsharp masking Homomorphic filtering

7. geometric transformation photometric transformation

8.  Clone stamp tool  Rubber stamp tool  Smudge tool  Cropping tool  Levels Adjustment  Hue/Saturation  Correcting Color and Tone