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 ...

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, ...

This summer we're re-running some of our most popular articles - just in case you didn't see them first time. Here's Phil Rhode's look at how to understand Waveform and Vector displays If the recent ...

Pick Select a bar and add associated data to the pickList attribute. Selection is made by clicking the bar. Selection can be for a single bar, extended selection, or disabled, depending on setting for ...

If you specify the DATA option immediately following the coordinates, the inset is positioned using axis data units. For example, the following statements place the bottom left corner of the inset at ...