Improved homomorphic filtering using fractional derivatives for enhancement of low contrast and non-uniformly illuminated images.
Kanwarpreet KaurNeeru JindalKulbir SinghPublished in: Multim. Tools Appl. (2019)
Keyphrases
- low contrast
- high contrast
- enhanced image
- contrast enhancement
- image enhancement
- homomorphic filtering
- background noise
- gray value
- high noise
- fully automatic
- gamma correction
- image data
- image analysis
- cell nuclei
- edge detection
- three dimensional
- blood vessels
- gray level
- input image
- matching process
- visual quality
- image registration
- pattern recognition
- image processing
- transfer function
- lighting conditions
- high quality