Image documentation for the Enhancement of text and noisy images

Abstract: Digital-image processing, nowadays has been experiencing a vibrant growth and economically begin to use widely in almost every field. Nowadays, each application has different requirements from the others, but there aim is almost same , i.e. to do processing faster, cheaper and more accurate. Earlier, information has been stored on paper, to store it in better form and for faster processing, is now being transformed into an electronic form. The present paper gives the detail of different noise effects on the images and along with that it discusses the different methods to remove the noise by using various filter such as median filter, enhanced median filter, Gaussian filter to improve the image quality. The Experimental results in this has been performed on a standard test images having a wide range of noise corruption levels. The work is implemented on the MATLAB environment.

Keywords: RGB (red, green, blue), Image enhancement, noise, MATLAB, spatial domain etc.