Digital Image Contrast Enhancement Using Normalization Techniques

A. Pritha, D. Santhi Jestlet


An image is an 2-d rectilinear array of pixels.An image is an Two-Dimensional function f(x,y),where x and y are spatial co-ordinates called the intensity of the image.If x ,y and f are finite and discrete quantities,we call a image as Digital image .It is composed of pixels and has particular direction and value.This paper describes the methods of processing an image.Finally ,Background Normalization techniques are applied for normalizing pixel intensities of a gray scale document images and also two new approaches are proposed for increasing readability and preserving the original look.


scan line view,Threshold,SEB pixel level, color bleaching transform, pivoting transform, Histogram

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