Contrast Enhancement Algorithm Using Definite Integration Mathematical Method Trapezoidal Rule

Author(s):  
Amiya Halder ◽  
Nikita Shah
Author(s):  
Chia-En Chang ◽  
Shih-Lun Chen ◽  
Chiung-An Chen ◽  
Ting-Lan Lin ◽  
Yao-Tsung Kuo ◽  
...  

2015 ◽  
Vol 7 (1) ◽  
Author(s):  
Peter Pangestu

In this paper, we will discuss about the implementatoion of Histogram Equalization for images contrast enhancement, in the preprocessing step, on Optical Character Recognition(OCR). OCR has several steps, including preprocessing step. Implementing images contrast enhancement algorithm will make it easier.  It is important for images to have high level contrast. It makes those images clear. Changing the histogram will make the colors of images also change. The output will be taken to the next step processing and we will get more accurate recognition.


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

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