crop

• purpose
• usage
• examples
• comments
• error messages
• see also

Purpose:

This program crops empty planes from all edges of an image

Usage:

crop input pad output [overwrite?(y/n)] [.air-file-name]

where the following definitions apply:

input

the name of the file to be cropped

pad

the number of voxels of padding to add back after cropping (more won't be added than was cropped).

output

the name of the output file

overwrite?(y/n)

'y' grants permission to overwrite output

.air-file-name

the name of a .air file that will be created to describe the crop with input as the reslice file and output as the standard file.

Examples:

• excess planes consisting solely of zeros will be cropped from all six edges of editedmri. Three planes of zeros will be added back (unless less than three planes were cropped along a given edge, in which case there will be no change at that edge). The result will be saved as croppedmri.

Comments:

• Cropping images can help derive better polynomial warps with .
• It is a generally a good idea to take advantage of the option to save a .air file describing the crop. This will allow you to link back to uncropped data using combine_air or combine_warp
• If the file is empty (i.e., if it consists entirely of zeros), it will be left unchanged

Error messages: (alphabetical by case)

pad must be a non-negative integer

• provide a non-negative integer value

See also:

• combine_air
• align_warp