Reorient

Category

Rendering

Function

Changes the orientation of an image or group of images.

Syntax

image = Reorient(image, how);

Inputs

Name	Type	Default	Description
image	field or group	none	image(s) to be reoriented
how	integer	none	specific change of orientation

Outputs

Name	Type	Description
image	image	reoriented image

Functional Details

This module rotates or inverts an image. (Use Refine or Reduce to change the size of an image.)

Note: This module is intended for images that will be displayed directly without rendering (i.e., using Display without a camera). So if you are rendering an object (using Image, Display with a camera, or Render), you should instead use Transpose, Rotate, Scale, and Translate to reorient that object before rendering it.

image	is an image or group of images. An image is (1) a regular 2-dimensional field or the output of Render or ReadImage and (2) must have the following characteristics. regular 2-dimensional positions and quad connections position-dependent colors origin at [0, 0].
how	specifies one of several possible reorientations. Allowed values are 0-7 (see figure).

Figure 4. Reorientation of the letter F.

If how is set to 0, the image's appearance does not change. However, if the origin or deltas are not in the preferred image order (i.e., origin at [0, 0] and x varying fastest), the internal layout is altered to the preferred order. The result is a more efficient display of the image.

Thus Reorient can be used to align images from two sources so that the pixels are in one-to-one correspondence. A tool like Compute can then operate on corresponding pixels from the two images.

Components

Modifies the positions and connections components and reorders the position-dependent components.

Example Visual Program

Topo.net

See Also

 Display,  Overlay,  ReadImage,  Reduce,  Refine,  Render