The world of today has gone digital with ever more megapixels and larger and larger photos on our digital cameras.
Those large photo sizes maintain excellent quality when reduced in size. But unlike photos shot with film, digital photos don’t fare so well when enlarged. Here’s a Mac app that helps preserve photo quality while enlarging the image.
War Against The Jaggies
The problem with enlarging a photo beyond its original size has to do with sharpness. Those pixels begin to stretch and look awful when doubling a photo that’s 4,000 pixels wide.
PhotoZoom is the Mac app that enlarges digital images while maintaining the quality of the image.
This is accomplished a number of ways, including removal of compression artifacts and some advanced math with a few patents attached (Spline interpolation).
Basically, think of what PhotoZoom does as a method that interprets what the photo’s pixels would look like if they were larger. Much larger. Check the example image. The original is a very small image in the upper left corner. It was enlarged to the image size below.
PhotoZoom accomplishes that Herculean feat with a rather simple interface.
Open a photo, select the larger size and a few other options, including the resize method (plenty of presets to choose), and the image is transformed from smaller to larger.
Options include zooming in on a specific spot on the photo, cropping and rotating, as well as sharpening.
PhotoZoom comes in two versions, the lower priced Classic and the more expensive Pro. Features are similar, though the Pro version can enlarge an image to 1-million x 1-million pixels.
As an example, a typical digital photo from a DSLR may have 12 megapixels (4,000 pixels by 3,000 pixels). PhotoZoom allows you to transform a smaller photo to a much larger version with minimal quality loss.
Even better, there’s a trial version so you can see the results on your own photos.
Who needs PhotoZoom? Anyone with smaller photos that need to be much larger, yet maintain quality. And, anyone digitizing printed photographs which were originally small, for which no negative exists, yet now there’s a need for a larger, enhanced version.