International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Most Trusted Research Journal Since Year 2012

ISSN: 2319-7064



M.Tech / M.E / PhD Thesis | Computer Science & Engineering | India | Volume 3 Issue 10, October 2014

Removal of PCA Based Estimated Noise in Processed Images

Neethu Mohan

Noise is an important problem in image processing applications. This noise level is to be estimated and is to be removed. Blind noise level estimation is an important image processing step. The proposed system is a new noise level estimation and removal method. It estimates noise based on principal component analysis (PCA) of image blocks. Principal component analysis is one of the statistical techniques frequently used in signal processing to the data dimension reduction or to the data correlation. In PCA first rearrange image blocks into vectors and compute the covariance matrix of these vectors. Then select the covariance matrix eigen values, which correspond only to noise. This allows estimating the noise variance as the average of these eigen values. The blocks to process are selected from image regions with the smallest variance. After noise level estimation the noise is removed using denoise function. It does not require images with homogeneous areas.

Keywords: Covariance Matrix, Eigen vectors, Principal Component Analysis, Variance, noise

Edition: Volume 3 Issue 10, October 2014

Pages: 897 - 899


How to Cite this Article?

Neethu Mohan, "Removal of PCA Based Estimated Noise in Processed Images", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=OCT14297, Volume 3 Issue 10, October 2014, 897 - 899

39 PDF Views | 33 PDF Downloads

Download Article PDF



Similar Articles with Keyword 'Covariance Matrix'

Survey Paper, Computer Science & Engineering, India, Volume 3 Issue 12, December 2014

Pages: 528 - 532

Knowledge Fusion Technique Using Classifier Ensemble by Combining the Sets of Classification Rules

Jaydeep B. Patil, Vaishali Nandedkar

Share this article

Research Paper, Computer Science & Engineering, India, Volume 3 Issue 10, October 2014

Pages: 1054 - 1058

Colour Extended Visual Cryptography based on MKGED

T. Anuradha, Dr. K. Usha Rani

Share this article

Review Papers, Computer Science & Engineering, India, Volume 3 Issue 12, December 2014

Pages: 687 - 690

Anomaly Detection of Online Data using Oversampling Principal Component Analysis

Supriya A. Bagane, J. L. Chaudhari

Share this article

M.Tech / M.E / PhD Thesis, Computer Science & Engineering, India, Volume 3 Issue 10, October 2014

Pages: 897 - 899

Removal of PCA Based Estimated Noise in Processed Images

Neethu Mohan

Share this article

Research Paper, Computer Science & Engineering, India, Volume 3 Issue 10, October 2014

Pages: 11 - 18

Anomaly Detection via Online Over-Sampling Principal Component Analysis

Pachunoori Naresh, Garine Bindu Madhavi

Share this article



Similar Articles with Keyword 'Eigen vectors'

Research Paper, Computer Science & Engineering, India, Volume 3 Issue 11, November 2014

Pages: 647 - 650

Improvement in Recognition Rate by Using Linear Regression with Principal Component Analysis

Tanvi Ahuja, Vinit Agarwal

Share this article

M.Tech / M.E / PhD Thesis, Computer Science & Engineering, India, Volume 4 Issue 2, February 2015

Pages: 1325 - 1329

A Novel Approach for Blurred and Noisy Face Image Recognition

Amith G K, Shreekumar. T

Share this article

M.Tech / M.E / PhD Thesis, Computer Science & Engineering, India, Volume 3 Issue 10, October 2014

Pages: 897 - 899

Removal of PCA Based Estimated Noise in Processed Images

Neethu Mohan

Share this article



Similar Articles with Keyword 'Principal Component Analysis'

Survey Paper, Computer Science & Engineering, India, Volume 3 Issue 4, April 2014

Pages: 618 - 622

Survey Paper on Different Approaches for Noise Level Estimation and Denoising of an Image

Bheem Prasad Ram, Sachi Choudhary

Share this article

Research Paper, Computer Science & Engineering, India, Volume 4 Issue 6, June 2015

Pages: 2369 - 2371

Analysis on PLSR in Contrast with PCR

Abhimanyu Kumar

Share this article

Comparative Studies, Computer Science & Engineering, India, Volume 4 Issue 4, April 2015

Pages: 1107 - 1110

Comparative Study of PCA and LDA

Chetana Narkhede, Uma Nagaraj

Share this article

Review Papers, Computer Science & Engineering, India, Volume 5 Issue 5, May 2016

Pages: 2277 - 2280

Image Compression Methods using Dimension Reduction and Classification through PCA and LDA: A Review

Khushboo Kumar Sahu, Prof. K. J. Satao

Share this article

Research Paper, Computer Science & Engineering, India, Volume 5 Issue 6, June 2016

Pages: 2092 - 2096

Defective Product Detection Using Image Processing

Hema L. Chavan, Santosh A. Shinde

Share this article



Similar Articles with Keyword 'Variance'

Research Paper, Computer Science & Engineering, India, Volume 5 Issue 4, April 2016

Pages: 1690 - 1694

Analytics of Application Resource Utilization within the Virtual Machine

Priyanka H

Share this article

Research Paper, Computer Science & Engineering, India, Volume 3 Issue 12, December 2014

Pages: 1815 - 1819

Discriminative Feature Selection by Nonparametric Way with Cluster Validation

Choudari Anantha, Dharmaiah Devarapalli

Share this article

Research Paper, Computer Science & Engineering, India, Volume 4 Issue 5, May 2015

Pages: 3213 - 3220

Automatic Speaker Recognition Using SVM

Umer Malik, P.K. Mishra

Share this article

M.Tech / M.E / PhD Thesis, Computer Science & Engineering, India, Volume 4 Issue 2, February 2015

Pages: 1726 - 1728

Improving Software Quality Using Two Stage Cost Sensitive Learning

Ann Joshua

Share this article

Research Paper, Computer Science & Engineering, India, Volume 4 Issue 5, May 2015

Pages: 1972 - 1977

Energy Efficient Routing Protocol in MANET

Nikitha V Suvarna, Chandra Naik

Share this article



Similar Articles with Keyword 'noise'

M.Tech / M.E / PhD Thesis, Computer Science & Engineering, India, Volume 5 Issue 5, May 2016

Pages: 2352 - 2357

RS and OFDM Methods Over Encrypted and Data Embedded Video Streams

Jithya J. Prakash, Hemand E. P.

Share this article

Review Papers, Computer Science & Engineering, India, Volume 3 Issue 6, June 2014

Pages: 482 - 485

A Comparative Study and an Overview of the Various Software Reliability Growth Models

Shivam Gautam, Arti Rana

Share this article

M.Tech / M.E / PhD Thesis, Computer Science & Engineering, India, Volume 3 Issue 9, September 2014

Pages: 707 - 710

Chronological Comparison for Organizing Summaries of Content Anatomy

A. Geetha Vani, B. Naresh Achari

Share this article

Survey Paper, Computer Science & Engineering, India, Volume 4 Issue 6, June 2015

Pages: 2570 - 2574

Rain Streaks Removal from Single Image: A Survey

Shalaka A. Mhetre, P. M. Patil, Sameer B.

Share this article

Survey Paper, Computer Science & Engineering, India, Volume 4 Issue 10, October 2015

Pages: 1434 - 1436

Method for Repossession of Content Based Video using Speech and Text Information

Manasi A. Kabade, U.A. Jogalekar

Share this article
Top