SegyMAT : Read and Write SEG-Y files using Matlab and Octave.

M-files to read and write SEG-Y files from Matlab, implemented using the syntax of the SEG-Y format : SEG-Y revision 0 (1975) and revision 1 (May 2002) [pdf].

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Introduction

SegyMAT is a set of Matlab files for reading and writing SEG-Y files from Matlab.

SegyMAT aims at being both simple to use to read SEG-Y files, and extensive enough to aid in writing complex seismic data.

A Python port of the library has initiated under the name : SegyPY

ADD : SegyMAT has a family member called lasYmat. A set of mfiles to read LAS files. It is currently under development, but useful.

Download

Download latest release

Documentation

SegyMAT user guide : [PDF] [HTML]

Mailing List

If you have suggestions, questions, bug-fixes, please join the Please join the segymat-user mailinglist, and post them there.

News

Fri, 28 Oct 2011 10:36:07 GMT
Verson 1.5	SegyMAT version 1.5 is now available, promising much faster reading of parts of large segy files.

Thu, 07 Apr 2011 10:14:27 GMT
Version 1.4 released	Version 1.4 is just release. It is mostly a bugfix release. Revision since last release: ReadSegy.m : Corrected SH.time to reflect proper traveltime Disabled Waitbar ReadSegyHeader.m : Fixed 'SkipData' conflict with Robust Control Toolbox wiggle.m : Allowed specification of line color, allow overlaying wiggle plots allow NaN value in 'VA' style plotting ReadSu : Fixed typo in line 221 MergeSegy.m : New file-->Merge several Segy Files into one

Thu, 07 Apr 2011 10:14:27 GMT

Version 1.4 released

Version 1.4 is just release. It is mostly a bugfix release.

Revision since last release:

ReadSegy.m :
Corrected SH.time to reflect proper traveltime
Disabled Waitbar
ReadSegyHeader.m :
Fixed 'SkipData' conflict with Robust Control Toolbox
wiggle.m :
Allowed specification of line color,
allow overlaying wiggle plots
allow NaN value in 'VA' style plotting
ReadSu :
Fixed typo in line 221
MergeSegy.m :
New file-->Merge several Segy Files into one

.... More News ->

Links

Some links to other programs using SegyMAT;

IMAGE2SEGY : Raster BM/JPG to SEGY conversion

Donate

If you feel you want to contribute with a donation to the development, you can do so here :
Donate to SegyMAT

Acknowledgment

Thanks to Brian Farrelly, Norsk Hydro Research Centre, Bergen, Norway, for supplying functions to convert between IBM Floating Point format and doubles.

Thanks to Urs Boeringer for adding a patch to WriteSegy, to enable use of an arbitrary set of TraceHeader values.

'sacsun2mat' was written by F Tilmann whos based his work on sac_sun2pc_mat by C. D. Saragiotis. from Matlab Central.

Thanks to Sourceforge for hosting the project.