Brain Volume I/O Handling C Library

U. Kjems, P. A. Philipsen, M. Ohlsson, P. Toft, N. Morch
Department of Mathematical Modelling, Building 305
Technical University of Denmark
2800 Lyngby, Denmark
Phone +45 45243894
E-mail: uk@imm.dtu.dk
http://eivind.imm.dtu.dk/staff/kjems

Version 0.3 June 3, 1998

Introduction to VOLIO
What is the Volio Library ?
Free UNIX utilities
Free Matlab I/O functions

Quick Reference to VOLIO C funtions

read_volume() Read an entire volume

read_header() Read a volume's header

open_read() Open a volume for reading

close_file() Close a volume file handle

write_volume() Write an entire volume

write_analyze_header() Write an ANALYZE header

open_write() Open a volume for writing

new_header() Allocate a new header

free_header() Free a header

copy_header() Copy a header

copy_volume() Copy an entire volume

copy_format_attributes() Transfer file format attributes between headers

add_description() Please use set_description

set_description() Add/modify a header description entry

get_description() Fetch a header description entry matching key

scanf_description() Parse header description entry beloning to a key

get_description_...() Get a specific data type from header description matching key

setf_description() Set formattet header description entry matching key

print_description() Produce a printout of header information in a buffer

delete_description() Not used by user

delete_lhs_description() Remove a specific header description entry matching key

new_description() Not used by user

read_lhs_rhs() Parse a string for lhs = rhs

scan_these() Array scanning of string

free_description() Not used by user copy_descriptions()

print() General I/O with logging and signal level support

set_signal_level() Set signal level for print()

scale_volume() Scale/add volume

convert_vector() Convert raw data type.

convert_volume() Convert a volume to different data type.

resize_volume() Resize a volume

mask_volume() Mask and reallocate volume from binary mask

unmask_volume() Unmask and reallocate volume from binary mask

alloc_volume() Allocate volume corresponding to header

permute_vol() Permute volume dimensions

flipvol_lr() Flip a volume left/right

flipvol_ud() Flip volume up/down

flipvol_tb() Flip volume top/bottom

start_stopwatch() Start internal stopwatch

read_stopwatch() Read internal stopwatch

read_stopwatch_string() Read internal stopwatch as string

big_endian() Test for endian-ness of host

endian_convert() Reverse the endian format for data in volume

Quick Reference to Unix utility progs

file2vapet Convert a file to VAPET format

file2ana Convert a file to ANALYZE format

file2xprime Convert a file to XPRIME format

compute_warp Compute non-linear warp field of 2 MRI's

warp_reslice Applies deformation field and linear transformation

histo_vols Compute 2D intensity histogram of 2 volumes

subsample Subsample a volume integral factor

headerinfo Show volume header information

resize_vol Resize a volume (add/remove space)

convert_vol Change datatype, scale intensity, compute min/max

apply_warp Fast application of displacement field

ivar Compute variance image across volumes

covar Compute covariance matrix for a set of volumes

flip Flip and/or permute a volume

maskcreate Build a mask by simple thresholding of an image

maskvol Build mask, boxcar-smoothing within mask

region Parcellation of segmented image warp_reconcile

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1997 Ulrik Kjems, DSP/IMM, Technical University of Denmark, uk@imm.dtu.dk
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 This software is FREE for non-commercial use, but the author holds all
 rights, and any use of the software should clearly indicate the author.
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