Sharpening Edge Tools

Molecular Informatics: Sharpening Drug Design’s Cutting Edge

The word ‘drug’, which derives from the Middle English word ‘drogge’, first appears in the English language during the 14th century and it has, at least during the last century, become, arguably, one of the most used, and misused, of words, becoming tainted by connotations of misuse and abuse. The dictionary definition of a drug is: ‘a substance used medicinally or in the preparation of a medic...

Controllable Edge Feature Sharpening for Dental Applications

This paper presents a new approach to sharpen blurred edge features in scanned tooth preparation surfaces generated by structured-light scanners. It aims to efficiently enhance the edge features so that the embedded feature lines can be easily identified in dental CAD systems, and to avoid unnatural oversharpening geometry. We first separate the feature regions using graph-cut segmentation, whi...

Adaptive Image Sharpening Method Using Edge Sharpness

This paper proposes a new method for automatic improvement in image quality through adjusting the image sharpness. This method does not need prior knowledge about image blur. To accomplish this work, the authors developed a new method for evaluating image sharpness without MTF. This is called image "edge sharpness* value. According to the subjective experiments, optimal edge sharpness value for...

Multiscale image sharpening adaptive to edge profile

A Sar Speckle Filtering Algorithm towards Edge Sharpening

One of the major difficulties when classifying synthetic aperture radar (SAR) images is the existence of speckle due to coherent processing. Existing speckle filtering algorithms can effectively reduce the speckle effect but unfortunately also smear edges and blur images. It is realized that fluctuations in an image can be due to either local oscillations or edge crossings. An appropriate filte...