Adobe Photoshop CS6, User Manual

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Content-aware scaling
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Resize images and protect content
Preserve visual content when scaling images
Specify content to protect when scaling
Resize images and protect content
Content-Aware Scale resizes an image without changing important visual content such as people, buildings, animals, and so forth. While normal
scaling affects all pixels uniformly when resizing an image, content-aware scaling mostly affects pixels in areas that don’t have important visual
content. Content-Aware Scale lets you upscale or downscale images to improve a composition, fit a layout, or change the orientation. If you want
to use some normal scaling when resizing your image, there is an option for specifying a ratio of content-aware scaling to normal scaling.
If you want to preserve specific areas when scaling an image, Content-Aware Scale lets you use an alpha channel to protect content during
resizing.
Content-Aware Scaling works on layers and selections. Images can be in RGB, CMYK, Lab, and Grayscale color modes as well as all bit depths.
Content-Aware Scaling doesn’t work on adjustment layers, layer masks, individual channels, Smart Objects, 3D layers, Video layers, multiple
layers simultaneously, or layer groups.
A. Original image B. Scaled narrower C. Scaled narrower, using content-aware scaling
For a video on content-aware scaling, see www.adobe.com/go/lrvid4120_ps . (Discussion of this feature begins at the four-minute mark.)
Preserve visual content when scaling images
1. (Optional) Choose Select > All if you’re scaling a Background layer.
2. Choose Edit > Content-Aware Scale.
3. Specify any of the following in the options bar:
Reference Point Location Click a square on the reference point locator to specify the fixed point around which the image is scaled.
By default this point is at the center of the image.
Use Relative Positioning For Reference Point Click the button to specify the new position of the reference point in relation to its current
position.
Reference Point Position Positions the reference point at the specific location. Enter X-axis and Y-axis pixel dimensions.
Scaling Percentage Specifies the image scaling as a percentage of the original size. Enter a percentage for the width (W) and height (H). If
desired, click Maintain Aspect Ratio .
Amount Specifies the ratio of content-aware scaling to normal scaling. Specify a percentage for content-aware scaling by typing in the text
box or clicking the arrow and moving the slider.
Protect Chooses an alpha channel that specifies an area to protect.
Protect Skin Tones Attempts to preserve regions that contain skin-tones.
4. Drag a handle on the bounding box to scale the image. Press Shift as you drag a corner handle to scale proportionately. When positioned
over a handle, the pointer becomes a double arrow.
5. Click either Cancel Transform or Commit Transform .
Specify content to protect when scaling