Paper Title:Digital image processing Image Enhancement in Spatial Filtering


Computational techniques involving contrast enhancement and noise filtering on two-dimensional image arrays are developed based on their local mean and variance. These algorithms are nonrecursive and do not require the use of any kind of transform. They share the same characteristics in that each pixel is processed independently. Consequently, this approach has an obvious advantage when used in real-time digital image processing applications and where a parallel processor can be used. Spatial filtering refreshing can be done Sharpening filters using by 1st derivative filters and 2nd derivative filters Followed by the Combining filtering to achieve the enhanced quality images for old age images, palm leaf also beautifying and extract actual content in that very easily also possible in this method.

Keywords:Two dimentional array, filtering, spatial, refresher,sharpaning, sobal, Laplacian, colored image.