RotZoomImg

DESCRIPTION

This module rotates, zooms, and/or mirrors an image. The zoom factor in the X and Y dimensions may be specified independently.

INPUTS

Port: Img In
Type: Lattice
Constraints: 1..3-D
source image

WIDGETS

Port: Angle
Type: Dial
rotation angle

Port: I Zoom
Type: Slider
X zoom factor

Port: J Zoom
Type: Slider
Y zoom factor

Port: Flip?
Type: Option Menu
Menu Item: No
Menu Item: X
Menu Item: Y
mirror flag

Port: Sample
Type: Option Menu
Menu Item: Point
Menu Item: BiLinear
Menu Item: BiCubic
Menu Item: Minify
The sampling type.

OUTPUTS

Port: Img Out
Type: Lattice
Constraints: 1..3-D
rotated, zoomed, and mirrored image

KNOWN PROBLEMS

The rotation is specified in degrees counter-clockwise, which is the reverse of the direction used in the CompassImg modules.

The point sampling can be slower than ZoomImg.

SEE ALSO

CompassImg, CompassDirImg, CompassAngleImg, ZoomImg.
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© The Numerical Algorithms Group Ltd, Oxford UK. 2000