HOW TO USE Adobe® Photoshop® CS2 [Electronic resources] نسخه متنی

Task 4 How to Flip and Rotate an Image

You might want to reverse the orientation of an image for compositional or aesthetic reasons. This is relatively simple to do in Photoshop (provided that there is no text that would be reversed). In addition to reversing an image, you can rotate the entire image canvas, reorienting it to a new position. This is a common requirement for optimizing scans that were set up in the wrong direction. This process is similar to the Free Transform command discussed in Part 10, Task 6, "How to Transform Layers." The main difference is that Free Transform operates on individual layers rather than the entire image (so that your text, on a separate layer, isn't affected).

1. Open the File

Open the image you want to flip or rotate.

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2. Rotate the Image

Select Image, Rotate Canvas. From the submenu, select 90° CW (clockwise), 90° CCW (counterclockwise), or 180°. In this example, I select 90° CW. The command is executed as soon as you select it from the menu.

3. Apply Arbitrary Rotation

Select Image, Rotate Canvas, Arbitrary to open the Rotate Canvas dialog box. Use this dialog box to specify the precise degree and direction of rotation. In this example, I want to rotate the image an additional 15° clockwise (CW). Click OK to rotate the canvas, which enlarges to accommodate the angled image.

4. Flip the Image Horizontally

Select Image, Rotate Canvas, Flip Canvas Horizontal to flip the image horizontally.

5. Flip the Image Vertically

Select Image, Rotate Canvas, Flip Canvas Vertical to flip the image vertically.

6. Observe the Results

As you can see, rotating and flipping an image can greatly affect how the image is perceived. Although you haven't really changed anything about the image other than the way it is presented to the viewer, you can see that presentation is important.