Open AccessEnhancement of Satellite Imagesusing Image Sharpening Technique
Author(s) -
B. Karthik,
. Hemalatha,
M Jasmin.
Publication year - 2019
Publication title -
international journal of engineering and advanced technology
Language(s) - English
Resource type - Journals
ISSN - 2249-8958
DOI - 10.35940/ijeat.f1096.0886s219
Subject(s) - sharpening , histogram equalization , artificial intelligence , computer vision , computer science , grayscale , top hat transform , image histogram , image (mathematics) , feature detection (computer vision) , image gradient , image texture , image processing , binary image , edge enhancement , image quality , color image , process (computing) , operating system
In many image processing applications, a wide range of image enhancement techniques are being proposed. Many of these techniques demanda lot of critical and advance steps, but the resultingimage perception is not satisfactory. This paper proposes a novel sharpening method which is being experimented with additional steps. In the first step, the color image is transformed into grayscale image, then edge detection process is applied using Laplacian technique. Then deduct this image from the original image. The resulting image is as expected; After performing the enhancement process,the high quality of the image can be indicated using the Tenengrad criterion. The resulting image manifested the difference in certain areas, the dimension and the depth as well. Histogram equalization technique can also be applied to change the images color.