analyze75info

Read metadata from header file of Analyze 7.5 data set

Syntax

info = analyze75info(filename)

info = analyze75info(___,Name,Value)

Description

info = analyze75info(filename) reads the header file of the Analyze 7.5 data set specified by filename. The function returns info, a structure whose fields contain information about the data set. Analyze 7.5 is a 3-D biomedical image visualization and analysis product developed by the Biomedical Imaging Resource of the Mayo Clinic. An Analyze 7.5 data set is made of two files, a header file and an image file. The files have the same name with different file extensions. The header file has the file extension .hdr and the image file has the file extension .img.

info = analyze75info(___,Name,Value) reads the Analyze 7.5 header file using name-value pairs to control different aspects of the operation.

Examples

Get Information about an Analyze 7.5 Data Set

Get information about an Analyze 7.5 data set. An Analyze 7.5 data set is made up of two files: a header file with the file extension .hdr and an image file with the file extension .img. You don't need to specify a file extension when calling analyze75info.

info = analyze75info('brainMRI');

Get information about an Analyze 7.5 data set, this time specifying the byte ordering of the data set. If you specify the wrong byte order, analyze75info attempts to read the file with the other supported byte order.

info = analyze75info('brainMRI', 'ByteOrder', 'ieee-le');

Input Arguments

filename — Name of Analyze 7.5 data set

character vector | string

Name of Analyze 7.5 data set, specified as a string or character vector. You don’t need to specify a file extension.

Example: info = analyze75info('brainMRI');

Data Types: char | string

Name-Value Pair Arguments

Specify optional comma-separated pairs of Name,Value arguments. Name is the argument name and Value is the corresponding value. Name must appear inside quotes. You can specify several name and value pair arguments in any order as Name1,Value1,...,NameN,ValueN.

Example: info = analyze75info('brainMRI','ByteOrder','ieee-le');

'ByteOrder' — Endianness of the data

character vector | string

Endianness of the data, specified as one of the strings or character vectors in the following table. If the specified value results in a read error, analyze75info issues a warning message and attempts to read the header file with the opposite ByteOrder format.

Value	Meaning
'ieee-le'	Byte ordering is Little Endian
'ieee-be'	Byte ordering is Big Endian

Data Types: char | string

Output Arguments

info — Information about Analyze 7.5 data set

structure

Information about Analyze 7.5 data set, returned as a structure.