DM3

File Format
Name	DM3
Ontology	Electronic File Formats Graphics DM3 ; ; ;
Extension(s)	.dm3
PRONOM	fmt/1131
Type Code	GTGI
Released	Before or during 1999

DM3 is an image format used by Digital Micrograph, a program used in transmission electron microscopy, often in order to interface with the hardware made by the company that releases it (Gatan). It contains a large amount of metadata in addition to the image itself. It succeeded DM2 and was succeeded by DM4.

Identification

DM3 files have the extension ".dm3", the type code "GTGI", and the creator code "GCCD"^[2]. Their contents start with the version number big-endian, i.e. 00 00 00 03.^[2]

Software

Digital Micrograph (later incorporated into "Gatan Microscopy Suite") itself
Bio-Formats
EMAN
BSOFT
The DM3_Reader plugin for ImageJ
Robert McLeod's importer for Matlab
Fred Sigworth's importer for Matlab

Links

References

[0] ttps://www.ifm.liu.se/materialphysics/thinfilm/Manualer/galadriel/Gatan%20Manuals/DigitalMicrograph%20User%20Guide.pdf → p.24 ("2-4")

[uod-1] 2.0 ^2.1 http://www.er-c.org/cbb/info/dmformat/#dm3

[1]

[2]

DM3

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File Format
Name	DM3
Ontology	Electronic File Formats Graphics DM3
Extension(s)	`.dm3`
PRONOM	fmt/1131
Type Code	`GTGI`
Released	Before or during 1999^[1]