ALGORITHM FOR THE COMPUTATION OF REGION-BASED IMAGE EDGE PROFILE ACUTANCE

被引：10
|
作者：
RANGAYYAN, RM
ELKADIKI, SG
机构：
[1] UNIV CALGARY,DEPT SURG,CALGARY,AB T2N 1N4,CANADA
[2] UNIV CALGARY,DEPT RADIOL,CALGARY,AB T2N 1N4,CANADA
来源：
JOURNAL OF ELECTRONIC IMAGING | 1995年 / 4卷 / 01期
关键词：
D O I：
10.1117/12.191329
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose an algorithm for the computation of a region-based measure of image edge profile (IEP) acutance based on gray-level variations across the boundary of an object A procedure to calculate the acutance based on region growing and a root-mean-squared gradient measure across region boundaries has been designed and implemented. After testing the algorithm on various images, it is shown that this measure of acutance can accurately reflect changes in the appearance of objects due to blurring and sharpening operations. Using this technique, it should be possible to quantify the level of enhancement in a digital image by calculating the acutance before and after the enhancement operation. The measure should also be useful in comparing specific features or regions of interest in images produced by different imaging systems.
引用
收藏
页码：62 / 70
页数：9
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