Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/598811
Title: The Analysis of Image Contrast: From Quality Assessment to Automatic Enhancement
Authors: Ke Gu;Guangtao Zhai;Weisi Lin;Min Liu
subject: phase congruency;subjective/objective quality assessment;Contrast enhancement;optimal histogram mapping;image contrast;statistics information
Year: 2016
Publisher: IEEE
Abstract: Proper contrast change can improve the perceptual quality of most images, but it has largely been overlooked in the current research of image quality assessment (IQA). To fill this void, we in this paper first report a new large dedicated contrast-changed image database (CCID2014), which includes 655 images and associated subjective ratings recorded from 22 inexperienced observers. We then present a novel reduced-reference image quality metric for contrast change (RIQMC) using phase congruency and statistics information of the image histogram. Validation of the proposed model is conducted on contrast related CCID2014, TID2008, CSIQ and TID2013 databases, and results justify the superiority and efficiency of RIQMC over a majority of classical and state-of-the-art IQA methods. Furthermore, we combine aforesaid subjective and objective assessments to derive the RIQMC based Optimal HIstogram Mapping (ROHIM) for automatic contrast enhancement, which is shown to outperform recently developed enhancement technologies.
URI: http://localhost/handle/Hannan/179068
http://localhost/handle/Hannan/598811
ISSN: 2168-2267
2168-2275
volume: 46
issue: 1
Appears in Collections:2016

Files in This Item:
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Title: The Analysis of Image Contrast: From Quality Assessment to Automatic Enhancement
Authors: Ke Gu;Guangtao Zhai;Weisi Lin;Min Liu
subject: phase congruency;subjective/objective quality assessment;Contrast enhancement;optimal histogram mapping;image contrast;statistics information
Year: 2016
Publisher: IEEE
Abstract: Proper contrast change can improve the perceptual quality of most images, but it has largely been overlooked in the current research of image quality assessment (IQA). To fill this void, we in this paper first report a new large dedicated contrast-changed image database (CCID2014), which includes 655 images and associated subjective ratings recorded from 22 inexperienced observers. We then present a novel reduced-reference image quality metric for contrast change (RIQMC) using phase congruency and statistics information of the image histogram. Validation of the proposed model is conducted on contrast related CCID2014, TID2008, CSIQ and TID2013 databases, and results justify the superiority and efficiency of RIQMC over a majority of classical and state-of-the-art IQA methods. Furthermore, we combine aforesaid subjective and objective assessments to derive the RIQMC based Optimal HIstogram Mapping (ROHIM) for automatic contrast enhancement, which is shown to outperform recently developed enhancement technologies.
URI: http://localhost/handle/Hannan/179068
http://localhost/handle/Hannan/598811
ISSN: 2168-2267
2168-2275
volume: 46
issue: 1
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7056527.pdf2.61 MBAdobe PDFThumbnail
Preview File
Title: The Analysis of Image Contrast: From Quality Assessment to Automatic Enhancement
Authors: Ke Gu;Guangtao Zhai;Weisi Lin;Min Liu
subject: phase congruency;subjective/objective quality assessment;Contrast enhancement;optimal histogram mapping;image contrast;statistics information
Year: 2016
Publisher: IEEE
Abstract: Proper contrast change can improve the perceptual quality of most images, but it has largely been overlooked in the current research of image quality assessment (IQA). To fill this void, we in this paper first report a new large dedicated contrast-changed image database (CCID2014), which includes 655 images and associated subjective ratings recorded from 22 inexperienced observers. We then present a novel reduced-reference image quality metric for contrast change (RIQMC) using phase congruency and statistics information of the image histogram. Validation of the proposed model is conducted on contrast related CCID2014, TID2008, CSIQ and TID2013 databases, and results justify the superiority and efficiency of RIQMC over a majority of classical and state-of-the-art IQA methods. Furthermore, we combine aforesaid subjective and objective assessments to derive the RIQMC based Optimal HIstogram Mapping (ROHIM) for automatic contrast enhancement, which is shown to outperform recently developed enhancement technologies.
URI: http://localhost/handle/Hannan/179068
http://localhost/handle/Hannan/598811
ISSN: 2168-2267
2168-2275
volume: 46
issue: 1
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7056527.pdf2.61 MBAdobe PDFThumbnail
Preview File