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Thursday, May 8, 2008

Camera Resolution Basics

By Barry Craft

Before you rush off to buy that quality of photo paper so you can have your digital photos printed at home, there are certain items you must be aware of when preparing for digital print. It can be as easy as I upload a print. However if you want the best quality and cleanest resolution as well is the most true and vibrant colors, then follow these guidelines that are used by professional photographers as well as graphic artists

First of all you may have seen two acronyms, PPI and DPI. Many people believe they are the same thing. Although they both define the resolution of your pictures they are used to describe different processes.

PPI simply means pixels per inch. In other words, this is the total number of pixels in a certain area captured by your camera's sensor when you take the picture. This defines how much digital information is actually contained for that image. You can enlarge the picture or increase the DPI, however the picture which has become grainy or blotchy which is known as pixelation.

Pixelation happens when there are not enough pixels in the image to represent every color and line; therefore, you get a mosaic, blotchy look. When the resolution is even the slightest bit low like this, the lines aren't as smooth as they should be.

This is where camera quality matters because the more pixels in the photo, the more flexibility you have with the size and resolution. The better the input, the better the outcome will be.

Dpi is actually part of the printing process. It means dots per inch and refers to the offset printing process. If you have ever looked at a newspaper or magazine up close, you have most likely noticed a pattern of tiny dots that blend together to form the image.

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