Title :
Homomorphic filtering techniques for WCE image enhancement
Author :
Ramaraj, M. ; Raghavan, Srinath ; Khan, Wajahat Ali
Author_Institution :
Dept. of ECE, Nat. Inst. of Technol., Tiruchirappalli, India
Abstract :
This paper reveals that the Homomorphic filtering technique for contrast enhancement of wireless capsule endoscopy images. We investigate the DFT and DWT based Homomorphic filtering method employ on the contrast space to enhance the capsule endoscopy images. The experimental results show that this method can provide better results of the wireless capsule endoscopy images than the Perona-Malik diffusion (PM) method and the contrast-limited adaptive histogram equalization (CLAHE) so as to assist the inspection of WCE images.
Keywords :
discrete Fourier transforms; discrete wavelet transforms; endoscopes; filtering theory; image enhancement; medical image processing; statistical analysis; CLAHE; DFT based homomorphic filtering method; DWT based homomorphic filtering method; PM method; Perona-Malik diffusion; WCE image enhancement; WCE image inspection; contrast space; contrast-limited adaptive histogram equalization; discrete Fourier transform; discrete wavelet transform; homomorphic filtering technique; wireless capsule endoscopy images; Discrete Fourier transforms; Discrete wavelet transforms; Endoscopes; Filtering; Filtering algorithms; Image enhancement; Contrast; DFT; DWT; Homomorphic filtering; enhancement;
Conference_Titel :
Computational Intelligence and Computing Research (ICCIC), 2013 IEEE International Conference on
Conference_Location :
Enathi
Print_ISBN :
978-1-4799-1594-1
DOI :
10.1109/ICCIC.2013.6724282
