Name

rotshift2dg - rotate and shift a 2D image using the gridding method

Usage

• nx=image.get_xsize()
• kb = kbt(nx)
• output = rotshift2dg (image, alpha, sx, sy, kb, scale)

  • Note: calculation of interpolants is separated from the actual image transformation The scale will change the 'physical pixel size' of the image (scale >1 will reduce the pixel size, scale<1 will increase it). Note rescaling will not change the image size in pixels; to do that, use command resample.

Input

. image

a 2D input image

. alpha

rotation angle

. sx

x shift

. sy

y shift

. kb

interpolants

. scale

magnification change (default = 1.0)

Output

output

the output rotated and shifted image

Author/Maintainer

Pawel A. Penczek

Keywords

category 1

FUNDAMENTALS

category 2

SPATIAL

Files

• fundamentals.py

See also

• rot_shift, rtshg

Maturity

• Perfect

Bugs

• perfect