Histograms are often useful tools for analyzing digital data. To get reliable results from a histogram, though, you must collect large amounts of data, often with 100,000 to 1 million points. If you ...

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 ...

Whether you've got a DSLR or you've turned your point-and-shoot into a super camera, those fancy features are useless if you don't understand them. Want to capture a perfectly exposed picture?

Receive a 15% discount on “Machine Vision: Theory, Algorithms, Practicalities” by ordering from www.elsevierdirect.com and using offer code 92839. [Part 1 of this article begins with a look at the ...

Last week’s post, “A Histogram is NOT a Bar Chart ”, explained that bar charts were used for comparing categorical variables and that histograms were used to show the distributions of binned ...

The simplest histogram displays a two-dimensional visualization of a single variable. For example, the following histogram shows the frequency for the single variable Age, specified for the X axis.

A 'good' histogram that shows an even exposure will peak more towards the middle and get lower to either end. Also, as a side note, when you playback your images there’s an option you can set that ...

The following table lists the attributes you can use to control color in a Histogram control. For information on controlling the color in titles and footnotes, see Displaying Titles and Footnotes in a ...