General Digital Imaging

Anatomy of the Histogram    The histogram. It seems a little daunting at first, but it's really quite simple, and extremely useful. The easy explanation: The histogram (as seen below) is simply a bar graph that represents the amount of each shade of gray in an image, with black represented on the ...

Images and Their Histograms - Examples    Check out the following examples and their respective histograms from this shoot. When possible, I corrected the image in Adobe Camera RAW and Photoshop to show a comparison histogram.

Color Channels and Color Theory

Filenames and sorting    So you renamed all your files with a sequence number, and uploaded them to a gallery... but they are not displaying in the order you want them to... why is that? Computers look at numbers differently than we do - they see only the first digit and use that to sort by fi...

Understanding Resolution Part 1    Perhaps one of the most difficult concepts for photographers and other types of digital artists to wrap their minds around is the concept of "Resolution". No, I'm not talking about that steadfast determination to throw your money away on a gym membership come January...

Understanding Resolution Part 2-Resampling    Now lets look at a big NO NO when resizing your images to send to the lab. The big bad word in this case is "Resampling". Resampling occurs when you enlarge an image by increasing the resolution (Resing-Up or Up-Resing as it is commonly referred to). When you tell Ph...