Novell LINUX ENTERPRISE DESKTOP 11 - APPLICATION GUIDE 17-03-2009 Application Manual page 252

21.7.4 Applying Image Transformations
To scale or rotate an image, use the Transform menu:
Rotate, Flip, Free Rotation
Rotate your image to a certain degree. Rotate rotates by multiples of 90 degrees.
With Free Rotation, specify any angle you want.
Crop, Aspect Ratio Crop
Crop your image. Crop cuts to any rectangular selection on top of your image.
Aspect Ratio Crop crops the image following various sophisticated design principles.
Perspective Adjustment
Adjust the perspective of an image. For example, if you notice some odd angles in
shots containing vertical or horizontal lines, use this tool to set them right. Grab
any of the four handles to the corners of your image and move them as much as
needed. Use the Crop tool to remove the resulting black edges of your image and
to trim it down.
Shear
Shift one part of your image to one direction and the other to the opposite direction,
either horizontally or vertically. Specify the angles for vertical and horizontal shear
and use Crop to trim the resulting image.
Resize
Scale your image. Resize offers a simple interface allowing you to manipulate your
image size by pixel or percentage. Select whether to keep the aspect ratio. If you
select Restore photograph, you can fine-tune the algorithms used to on your resized
image and improve the quality of the end product. Note that this option might be
considerably slower than a simple resize operation.
Assuming you have an image that is otherwise perfect, but you are not entirely satisfied
with the composition yet or need to crop your image to match a certain paper format
for reproduction. In this case, use Aspect Ratio Crop and proceed as follows:
1 Open your image.
2 Select Transform > Aspect Ratio Crop.
3 Determine the orientation and aspect ratio to use:
238 Application Guide