scholarly journals Modulated AIHT Image Contrast Enhancement Algorithm based on Contrast-Limited Adaptive Histogram Equalization

2013 ◽  
Vol 7 (2L) ◽  
pp. 449-454 ◽  
Author(s):  
Cheng-Yi Yu ◽  
Hsueh-Yi Lin ◽  
Tzu-Wei Yu
Keyword(s):  
Contrast Enhancement ◽  
Histogram Equalization ◽  
Image Contrast ◽  
Adaptive Histogram Equalization ◽  
Image Contrast Enhancement ◽  
Enhancement Algorithm

scholarly journals Study on Construction of a Medical X-Ray Direct Digital Radiography System and Hybrid Preprocessing Methods

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Yong Ren ◽  
Sheng Wu ◽  
Mijian Wang ◽  
Zhongjie Cen
Keyword(s):  
Contrast Enhancement ◽  
Digital Radiography ◽  
Histogram Equalization ◽  
Image Contrast ◽  
X Ray ◽  
Adaptive Histogram Equalization ◽  
Radiography System ◽  
Image Contrast Enhancement ◽  
Flat Field ◽  
Enhancement Algorithm

We construct a medical X-ray direct digital radiography (DDR) system based on a CCD (charge-coupled devices) camera. For the original images captured from X-ray exposure, computer first executes image flat-field correction and image gamma correction, and then carries out image contrast enhancement. A hybrid image contrast enhancement algorithm which is based on sharp frequency localization-contourlet transform (SFL-CT) and contrast limited adaptive histogram equalization (CLAHE), is proposed and verified by the clinical DDR images. Experimental results show that, for the medical X-ray DDR images, the proposed comprehensive preprocessing algorithm can not only greatly enhance the contrast and detail information, but also improve the resolution capability of DDR system.

Composite Image Contrast Enhancement Algorithm Based on Local Adaptive Stretching Window

2009 ◽  
Vol 29 (10) ◽  
pp. 2756-2761
Author(s):  
李成 Li Cheng ◽  
鞠明 Ju Ming ◽  
毕笃彦 Bi Duyan ◽  
刘波 Liu Bo
Keyword(s):  
Contrast Enhancement ◽  
Image Contrast ◽  
Composite Image ◽  
Image Contrast Enhancement ◽  
Enhancement Algorithm
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