Low key? High key? Learn how to read histograms and you’ll understand how to manipulate them until you get the kind of digital image you want.
A histogram indicates the amount of each light level (and in more sophisticated versions, amount of each color at each amount of brightness your photos have. An experienced photographer can glance at a histogram and know in an instant if the exposure is accurate, while a Photoshop jockey can manipulate an image’s Levels (which shows the histogram) to improve an image.
Let’s look at three kinds of histograms: One for a good average scene, one for a darker, low-key scene, and one for a bright, high-key image.
What does a good histogram look like?A histogram is a graph of 256 vertical bars, one for
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Histograms have been used by printers and professional photographers and graphic artists for ages. But they don't mean much to the average hobby photographer unless they have had some classes that cover the subject.
Because I have a backround which includes aa of the above professional areas, i take histograms for granted. They are very useful in quickly uderstanding what is going on with a didital photograh if yor displayoffers the histogramfunction.
Histograms can also be used to help while in digitally correcting an image in the computer with photo software such as PhotoShop. One way that I use it is to gaina surreal look to othewise mundane landscapes or decorative art images.Historgrams are especially helpful for getting "back" to an image's set of values when you may want to start over on your corrections or to alter a similar image in the same manner.
