Shift

Shift

Purpose

This utility allows you to shift and or scale images, volumes and selfiles with images and volumes.

Usage

$ shift -i ...

Parameters

• __OR__ Shift a single file

• __OR__ If no output file is given, then the input one is rewritten

• `` Shift a bunch of files

• __OR__ If no output extension is given, then the input ones are rewritten

• `` Do not produce on screen information

• -shift "[[X],[y],[z]]" Shift vector

• -scale "[[X],[y],[z]]" Scale vector

• `` Shift vectors may be provided by a doc file

  • `` Shift and scales are totally independent

• `` Scale vectors may be provided by a doc file

  • `` Shift and scales are totally independent

• `` By default, the image or volume is assumed to be periodic. Applying this flag it is not

• `` Use this flag to store the shift in the header avoiding, thus, the interpolation. This flag is only valid for images

• `` Use this flag to shift the center of mass of the images to the center of the image. This flag is only valid for images

Examples and notes

Shifting of a single image, overwriting input images

$ shift -i g0ta00001.xmp -shift "[3,-2]"

Shifting of a selfile, a new extension is given to output images, ie, if input images are of the like ofg0ta0001.xmp, then the output ones will beg0ta0001.shf.

$ shift -i g0ta.sel -oext shf -shift "[-2,-2]"

Shift and Scale a sel file using a unique docfile with shifts is columns 3 and 4 and scales in columns 5 and 6. The output images extension isspi

$ shift -i g1t.sel -oext spi -shift shift.doc -scale shift.doc -colX_shift 3 -colX_scale 5

Shift all images in a selfile so that their center of mass are in the center of the images

$ shift -i g1t.sel -center_mass

--Main.AlfredoSolano - 18 Jan 2007