A Technique for Signature Preserving Enhancement
نویسندگان
چکیده
Conventional techniques for image sharpening tend to introduce artifacts around edges producing a ringing effect. In this paper we propose a technique based on local derivatives to produce signature preserving sharpening. The performance of the technique is evaluated on synthetic imagery and remote sensing imagery. It is found that applying the technique in an iterative manner on zoomed imagery produces corner preserving sharpening to subpixel accuracy.
منابع مشابه
An Adaptive Fuzzy Contrast Enhancement Algorithm with Details Preserving
This paper modifies the Adaptive Contrast Enhancement Algorithm with Details Preserving (ACEDP) technique by integrating a fuzzy element in the image type selection. The proposed technique, named the Adaptive Fuzzy Contrast Enhancement with Details Preserving (AFCEDP) technique, first computes the degree of membership of the input image to three categories, i.e. low-, middleor high-level images...
متن کاملComparative Study and Implementation of Image Enhancement Techniques based on Histogram Equalization
Histogram equalization (HE) is one of the common methods used for image enhancement. Histogram equalization has proved to be a simple and effective image contrast enhancement technique. The major difference among the methods in this family is the criteria used to divide the input histogram. For preserving the input brightness of the image, there is a segment to avoid the generation of non-exist...
متن کاملCombination of Brightness Preserving Bi-Histogram Equalization and Discrete Wavelet Transform using LUV Color Space for Image Enhancement
Image enhancement is the process of enhancing the image from the poor quality image to a visually pleasing image. The basic purpose of using image enhancement technique is to enhance the quality of the image. Image enhancement performs contrast enhancement and intensity transformations of the original image. Image enhancement is performed to obtain the image from the noising image so that it ca...
متن کاملAn Adaptive Contrast Enhancement Algorithm with Details Preserving
This paper presents an adaptive contrast enhancement algorithm with details preserving (ACEDP) to enhance gray-scale image. Initially, the input image is classified into low-, middleor high-level image based on the gray-level distribution of maximum number of pixels. The proposed ACEDP algorithm assigns different plateau functions for different type of image and histogram clipping is then perfo...
متن کاملStructure enhancement diffusion and contour extraction for electron tomography of mitochondria.
The interpretation and measurement of the architectural organization of mitochondria depend heavily upon the availability of good software tools for filtering, segmenting, extracting, measuring, and classifying the features of interest. Images of mitochondria contain many flow-like patterns and they are usually corrupted by large amounts of noise. Thus, it is necessary to enhance them by denois...
متن کامل