A STUDY TO IMPROVE THE QUALITY OF IMAGE ENHANCEMENT BASED ON DIFFERENT FILTERING DESIGN TECHNIQUES

In this paper we are doing study of digital filter on three types of noise such as Salt and Pepper (SPN), Gaussian noise, Speckle (SPKN). Different noise variance will be removed between 10 % to 60 % by using different types of filter as median and High pass digital filter. Filter techniques are mainly used for de-noising, smoothness and sharpening of images and extracting the useful information for the analysis for image processing The same concept is applied to the different images and they are compared with one another. The study is proposed with the help of Mean Square Errors (MSE) and Peak-Signal to Noise Ratio (PSNR).So as to choose the appropriate noise for different filtering methods for any image. Results are simulated on MATLAB R2007b