A Segment Linear Function-Based on Image Enhancement Method
Fan Tie-sheng · Journal of Liaoning University · 2006
A method of digital image enhancement which is presented,is based on a segment linear function.In order to avoid excessive smoothing or sharpening,a 7 segment linear function is defined.The input of the function is the difference of the gray levels between the central pixel and one of its 3×3 neighbour,the output of the function shows the contribution of that difference to the output pixel.There are two adaptive parameters in the function,which is used to decide the degree of smoothing and sharpening.The results of experiments show that this method is a flexible and efficient image enhancement method.