Title :
Restoration of blurred images using Blind Deconvolution Algorithm
Author :
Ramya, S. ; Christial, T. Mercy
Author_Institution :
Kalasalingam Univ., Anand Nagar, India
Abstract :
Image restoration is the process of recovering the original image from the degraded image. Aspire of the project is to restore the blurred/degraded images using Blind Deconvolution algorithm. The fundamental task of Image deblurring is to de-convolute the degraded image with the PSF that exactly describe the distortion. Firstly, the original image is degraded using the Degradation Model. It can be done by Gaussian filter which is a low-pass filter used to blur an image. In the edges of the blurred image, the ringing effect can be detected using Canny Edge Detection method and then it can be removed before restoration process. Blind Deconvolution algorithm is applied to the blurred image. It is possible to renovate the original image without having specific knowledge of degradation filter, additive noise and PSF. To get the effective results, the Penalized Maximum Likelihood (PML) Estimation Technique is used with our proposed Blind Deconvolution Algorithm.
Keywords :
Gaussian processes; blind source separation; deconvolution; edge detection; image restoration; low-pass filters; maximum likelihood estimation; Canny edge detection; Gaussian filter; PML estimation; additive noise; blind deconvolution algorithm; blurred image edge; degradation filter; degradation model; degraded image; image deblurring; image distortion; image recovering; image restoration; low-pass filter; penalized maximum likelihood estimation; ringing effect; Deconvolution; Degradation; Image edge detection; Image restoration; Low pass filters; Noise; Pixel; Blind Deconvolution Algorithm; Canny Edge Detection; Degradation Model; Image restoration; PML; PSF;
Conference_Titel :
Emerging Trends in Electrical and Computer Technology (ICETECT), 2011 International Conference on
Conference_Location :
Tamil Nadu
Print_ISBN :
978-1-4244-7923-8
DOI :
10.1109/ICETECT.2011.5760166