GeoTools : Matlab file version 5



Module Maintainer:

Daniele Romagnoli


(star)(red star)(star)(star)

Email Help:


IP Review:


Coverage plugin to decode Matlab files which adhere to version 5 of the format specification.

Module Status

Gold Star Quality Assurance Check

(star) IP Check: review.apt added, all headers are in place
(red star) Quality Assurance: test coverage is poor, we need to work on that and find suitable test data
(star) Stability: No planned API changes
(star) Supported: Documents available. Module maintainer does watches user list, answers email.


The aim of this plugin is to allow users to decode Matlab data file when encoded in version 5 of the format (the only one that is known to be open as far as it specification is concerned). We also look for a sibling world file (wld) and projection file (prj) to get access to the associated CRS and grid to world transformation.

Notice that the Matlab data format version 5 support many different types of datatypes, like Int32 and Double. For more information, please check the file format specification here .

Future plans

We plan to do what follows as time and funding permits:

  • improve decoding on uncompressed data by NOT loading everything in memory
  • add support for Complex (as in x+ j y) numbers
  • add support for more custom metadata formats for decoding georeferencing information
  • add support for writing to Matlab format 5

The Image I/O-Ext project

The Image I/O-Ext project leverages existing native APIs to extend the set of formats that the JAI ImageIO API can read.
Actual version of Image I/O-Ext is 1.0.5, but this plugin is leveragin on version 1.1 unstable.

Outstanding Issues

T Key Summary Assignee Reporter P Status Resolution Created Updated Due
Bug GEOT-3423 Datum mapping values are trashed if gt-jp2k is on the classpath Unassigned Joe Boese Major Open Unresolved Feb 10, 2011 Feb 23, 2011
Improvement GEOT-3135 JP2KReader should not depend on Kakadu to get the UUIDBox Daniele Romagnoli David Smiley Major Open Unresolved Jun 04, 2010 Jun 01, 2012
Improvement GEOT-2885 Add support for masking a specific color to all the raster plugins Simone Giannecchini Simone Giannecchini Minor In Progress Unresolved Dec 10, 2009 Sep 29, 2011
Improvement GEOT-1644 Add support for external overviews raster format Simone Giannecchini Andrea Aime Minor In Progress Unresolved Dec 27, 2007 Sep 29, 2011


The credit loans are useful for guys, which want to start their own business. By the way, it is very comfortable to receive a bank loan.

Posted by biancagross at Dec 31, 2010 17:36