The 3rd alternative shown is a scaling method Adobe introduced in 2013 with Photoshop CC, called "Preserve Details".
(The sharpening method used for the examples is "unsharp masking".) The interpolation results are a bit blurry, so another conventional action might be to sharpen them. Bicubic interpolation is what most image editors offer as the most appropriate method for image scaling.
On a Windows PC or Notebook, just hold down the Ctrl key and spin the mouse wheel up or down until the left side pattern of this test stripe looks exactly like a miniature version of the right side pattern (chessboard-like).įor comparison, all examples show the results of two conventional methods as well. It's usually easy to get the original resolution shown. Otherwise, the browser does another image scaling on top, somewhat obfuscating the differences these examples are about. The following examples are most clear if the images are viewed in their original resolution. A Sharper Scaling is a free, high quality image scaling technology mainly developed for upscaling.
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