Format

XIMG (Extended GEM Bit Image)

Summary

Name

XIMG (Extended GEM Bit Image)

Identifiers

PUID: fmt/1657

Format type

Image (Raster)

Description

The XIMG (Extended GEM Bit Image) image format is more developed version of GEM raster Image [x-fmt/159] which allows for standardised verison of storing colour palettes. It originated due to the specification of GEM format being ambiguous as to the format of color images. The GEM raster format (also known as GEM VDI Bit Image; GEM Bit Image; GEM Image; GEM Bitmap; or IMG) is an image format native to the Graphical Environment Manager (GEM) operating system and developed at Digital Research. The format was used by GEM Paint and Ventura Publisher, and by a variety of Atari ST software.

Note

http://fileformats.archiveteam.org/wiki/GEM_Raster https://www.wikidata.org/wiki/Q28206162 https://www.seasip.info/Gem/ff_img.html https://www.fileformat.info/format/gemraster/spec/20e311cc16f844fda91beb539d62c46c/view.htm https://archive.org/stream/mac_Graphics_File_Formats_Second_Edition_1996/Graphics_File_Formats_Second_Edition_1996_djvu.txt

File extensions

ximg, img

Source

The National Archives and Records Administration / The National Archives and Records Administration

Relationships

Is subsequent version of

• GEM Image

Internal signatures

Changelog

• Added in V105

  Release date

  29 June 2022

  XIMG (Extended GEM Bit Image): Signature researched and samples provided by The National Archives and Records Administration.

  XIMG (Extended GEM Bit Image): Full entry added. Submitted by The National Archives and Records Administration.