By Lesa Snider King:
Resizing Without Quality Loss
Photo resolution is probably one of the most misunderstood aspects of digital image editing. The truth is, image resolution matters only if you're going to print the image. If the image is destined to live onscreen, it's the pixel dimensions that matter. Pixel widths and heights can be measured at any resolution. However, you have to be careful how you change it. Pop open the Image Size dialog in Photoshop and uncheck the Resample Image checkbox at the bottom left. This locks the pixel data, locking in quality. It’s confusing because the onscreen image won’t change a bit; the truth can be only revealed by the Image Size dialogue box.
Lesa Snider King, The Graphic Reporter, is iStockphoto's Chief Evangelist.
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