A hybrid logarithmic gradient algorithm for poisson noise removal in medical images
This paper proposes a Poisson noise removal filter consisting of a modified gradient algorithm. Square of each pixel is subtracted from the center pixel of a 3x3 window. All gradient values are log added and then square root is taken. Bias reduction is done using log value of central pixel. The meth...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hikari Ltd
2014
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/41573/ http://irep.iium.edu.my/41573/ http://irep.iium.edu.my/41573/1/P3.pdf |