How histograms can help you control key factors that affect exposure levels. Correct exposures are the first step towards usable image files and the histogram displays provided in most digital cameras ...

Purpose: To describe and assess the clinical impact of ‘local contrast enhancement’ on oral fluorescein angiograms. Methods: Oral fluorescein angiograms (OFA) were performed on 12 patients with a ...

It’s easy to set exposure by eye. We’ve all done it. The problem is that the electronic viewfinder or LCD screen on your camera does not show a 100% accurate representation of what the sensor is ...

RedShark Replay: One from the archives. Gone are the days when a light meter and a trained eye was enough; to do better, we need technological measures and test & measurement equipment. Traditionally, ...