This Module defines a manner of rotating an image by increments of ninety degrees and flipping an image.
Table C.10-6. Spatial Transformation Module Attributes
|
Attribute Name |
Tag |
Type |
Attribute Description |
|---|---|---|---|
|
Image Rotation |
(0070,0042) |
1 |
How far to rotate the image clockwise in degrees, before any Image Horizontal Flip (0070,0041) is applied. Enumerated Values:
NoteNegative values are not permitted since the Value Representation is unsigned. |
|
Image Horizontal Flip |
(0070,0041) |
1 |
Whether or not to flip the image horizontally after any Image Rotation has been applied such that the left side of the image becomes the right side. Enumerated Values:
NoteNo vertical flip is specified since the same result can be achieved by a combination of a 180 degree rotation and a horizontal flip. |
Given the definition of the Grayscale Transformation Sequence in PS3.4, it is apparent that the rotation, flipping and magnification will be applied AFTER the application of any bit-mapped overlays or graphic annotations that are specified in the image pixel spaces, but BEFORE the application of graphic annotations that apply in the Specified Displayed Area relative space.