Abstract:
Many applications of histograms for the purposes of image processing are well known. However, applying this process to the transform domain by way of a transform coeffici...Show MoreMetadata
Abstract:
Many applications of histograms for the purposes of image processing are well known. However, applying this process to the transform domain by way of a transform coefficient histogram has not yet been fully explored. This paper proposes three methods of image enhancement: a) logarithmic transform histogram matching, b) logarithmic transform histogram shifting, and c) logarithmic transform histogram shaping using Gaussian distributions. They are based on the properties of the logarithmic transform domain histogram and histogram equalization. The presented algorithms use the fact that the relationship between stimulus and perception is logarithmic and afford a marriage between enhancement qualities and computational efficiency. A human visual system-based quantitative measurement of image contrast improvement is also defined. This helps choose the best parameters and transform for each enhancement. A number of experimental results are presented to illustrate the performance of the proposed algorithms
Published in: IEEE Transactions on Image Processing ( Volume: 16, Issue: 3, March 2007)
College of Engineering, University of Texas, San Antonio, San Antonio, TX, USA
Sos S. Agaian (SM'85) is the Peter T. Flawn Distinguished Professor at the College of Engineering, The University of Texas at San Antonio, and an Adjunct Professor in the Department of Electrical and Computer Engineering, Tufts University, Medford, MA. He has authored more than 300 scientific papers, four books, and holds 13 patents. He is an Associate Editor of theJournal of Real-Time Imaging, theJournal of Electronic Im...Show More
Sos S. Agaian (SM'85) is the Peter T. Flawn Distinguished Professor at the College of Engineering, The University of Texas at San Antonio, and an Adjunct Professor in the Department of Electrical and Computer Engineering, Tufts University, Medford, MA. He has authored more than 300 scientific papers, four books, and holds 13 patents. He is an Associate Editor of theJournal of Real-Time Imaging, theJournal of Electronic Im...View more
Tufts University, Medford, MA, USA
Blitir Silver received the B.S. degree in electrical engineering from Tufts University, Medford, MA.
His primary research interests include digital signal and image processing, specifically image enhancement and performance measures.
Mr. Silver is a member of Eta Kappa Nu.
Blitir Silver received the B.S. degree in electrical engineering from Tufts University, Medford, MA.
His primary research interests include digital signal and image processing, specifically image enhancement and performance measures.
Mr. Silver is a member of Eta Kappa Nu.View more
Tufts University, Medford, MA, USA
Karen A. Panetta (SM'95) received the B.S. degree in computer engineering from Boston University, Boston, MA, and the M.S. and Ph.D. degrees in electrical engineering from Northeastern University, Boston.
She is a Consulting Engineer for Tyco Electronics, Inc., and is the 2007 IEEE Director of Women in Engineering.
Karen A. Panetta (SM'95) received the B.S. degree in computer engineering from Boston University, Boston, MA, and the M.S. and Ph.D. degrees in electrical engineering from Northeastern University, Boston.
She is a Consulting Engineer for Tyco Electronics, Inc., and is the 2007 IEEE Director of Women in Engineering.View more
Contents College of Engineering, University of Texas, San Antonio, San Antonio, TX, USA
Sos S. Agaian (SM'85) is the Peter T. Flawn Distinguished Professor at the College of Engineering, The University of Texas at San Antonio, and an Adjunct Professor in the Department of Electrical and Computer Engineering, Tufts University, Medford, MA. He has authored more than 300 scientific papers, four books, and holds 13 patents. He is an Associate Editor of theJournal of Real-Time Imaging, theJournal of Electronic Imaging, and an editorial board member of the Journal of Pattern Recognition and Image Analysis. His current research interests lie in the broad areas of signal/image processing and transmission, information security, and mobile imaging and secure communication.
Sos S. Agaian (SM'85) is the Peter T. Flawn Distinguished Professor at the College of Engineering, The University of Texas at San Antonio, and an Adjunct Professor in the Department of Electrical and Computer Engineering, Tufts University, Medford, MA. He has authored more than 300 scientific papers, four books, and holds 13 patents. He is an Associate Editor of theJournal of Real-Time Imaging, theJournal of Electronic Imaging, and an editorial board member of the Journal of Pattern Recognition and Image Analysis. His current research interests lie in the broad areas of signal/image processing and transmission, information security, and mobile imaging and secure communication.View more
Tufts University, Medford, MA, USA
Blitir Silver received the B.S. degree in electrical engineering from Tufts University, Medford, MA.
His primary research interests include digital signal and image processing, specifically image enhancement and performance measures.
Mr. Silver is a member of Eta Kappa Nu.
Blitir Silver received the B.S. degree in electrical engineering from Tufts University, Medford, MA.
His primary research interests include digital signal and image processing, specifically image enhancement and performance measures.
Mr. Silver is a member of Eta Kappa Nu.View more
Tufts University, Medford, MA, USA
Karen A. Panetta (SM'95) received the B.S. degree in computer engineering from Boston University, Boston, MA, and the M.S. and Ph.D. degrees in electrical engineering from Northeastern University, Boston.
She is a Consulting Engineer for Tyco Electronics, Inc., and is the 2007 IEEE Director of Women in Engineering.
Karen A. Panetta (SM'95) received the B.S. degree in computer engineering from Boston University, Boston, MA, and the M.S. and Ph.D. degrees in electrical engineering from Northeastern University, Boston.
She is a Consulting Engineer for Tyco Electronics, Inc., and is the 2007 IEEE Director of Women in Engineering.View more
