MX

Content-aware photo zoom
An alternative to content aware scaling is the whereby the photo remains the same size and the content is
intelligently zoomed inside it. Here's an example of the effect.
Use the zoom slider on the Infobar to control
content-aware photo zoom.
The picture remains the same size, but the program automatically detects and scales (zooms) the
'interesting' content. Note this is not just a crop of the girl, but that every element, cloud, and grass that
appears in the original is still there in the zoomed version. The program automatically detects the surfer is
the 'region of interest' and so enlarges him only.
Alternative Content Aware Scaling
When stretching photos there are two alternative ways to scale the image. The method of just dragging
the size arrows sometimes works not so well with some image types.
However by holding the "Alt" key when dragging one of the side handles in the Content-aware Scale
Tool
performs a different intelligent scale using an alternative algorithm.
Content Aware Scaling notes

You can only compress an image to half its initial width or height

If you save a document with a photo that has been prepared for Content Aware resizing, then it
saves the resizing information in the document. The advantage of this is that you can later
re-adjust the photo using the Content Aware feature. There is a significant file size overhead of
saving photos like this.
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