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Brief
To restore noise corrupted images using
different sized median filters.
Median filter
The
Matlab scripting language
was used to apply different sized median filters (3x3, 5x5,
7x7) to noise corrupted images, for example:
- Salt
& pepper noise
- Gaussian
noise
The
PSNR (Peak Signal to Noise Ratio), measured in decibels, was
computed for the de-noised images, allowing the level of enhancement
from the noised images to be calculated. The level of enhancement
in most cases was in the region of +1dB to +5dB.
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© 2004 - 2008 Naveen Trehan |
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