NEOchrome

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|subcat2=Atari graphics formats
 
|subcat2=Atari graphics formats
 
|extensions={{ext|neo}}
 
|extensions={{ext|neo}}
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|wikidata={{wikidata|Q28049507}}
 
}}
 
}}
'''NEOchrome format''' is a raster image file format associated with the ''NEOchrome'' graphics editor for Atari ST.
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'''NEOchrome''' format is a raster image file format associated with the ''NEOchrome'' graphics editor for Atari ST.
  
== Format ==
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See also [[NEOchrome Master]].
Files have a 128-byte header, followed by 32000 bytes of uncompressed image data.
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It supports three image formats:
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== Format details ==
* 320×200, 16-color
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NEOchrome files have a 128-byte header, followed by 32000 bytes of uncompressed image data, for a total file size of 32128 bytes.
* 640×200, 4-color
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* 640×400, 2-color
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NEOchrome images are 320×200 pixels, with 16 colors.
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The format may seem to allow for other video modes, and other image dimensions. However, such files are generally not supported, and are probably not valid.
  
 
== Software ==
 
== Software ==
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* [[Konvertor]]
 
* [[RECOIL]]
 
* [[RECOIL]]
* [[Netpbm]] (320×200 only?)
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* [[Netpbm]]
 
* [[XnView]]
 
* [[XnView]]
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* {{Deark}}
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* [http://snisurset.net/code/abydos/ abydos]
  
 
== Sample files ==
 
== Sample files ==
 
* http://samples.libav.org/image-samples/atarist/neochrome/
 
* http://samples.libav.org/image-samples/atarist/neochrome/
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* http://cd.textfiles.com/806atari/001-200/173/NEOPICS/
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* http://cd.textfiles.com/atarilibrary/atari_cd01/DRAWING/NEO.14/
 
* [http://www.page6.org/st_lib/st_lib.htm ST Library] → [http://www.page6.org/st_lib/standard/st0003.php ST3], [http://www.page6.org/st_lib/standard/st0072.php ST72], [http://www.page6.org/st_lib/standard/st0377.php ST377]
 
* [http://www.page6.org/st_lib/st_lib.htm ST Library] → [http://www.page6.org/st_lib/standard/st0003.php ST3], [http://www.page6.org/st_lib/standard/st0072.php ST72], [http://www.page6.org/st_lib/standard/st0377.php ST377]
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* https://telparia.com/fileFormatSamples/image/neochrome/
  
 
== Resources ==
 
== Resources ==
 
* [http://wiki.multimedia.cx/index.php?title=Neochrome MultimediaWiki article]
 
* [http://wiki.multimedia.cx/index.php?title=Neochrome MultimediaWiki article]
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* {{AtariForumWiki|ST_Picture_Formats|ST Picture Formats}}
 
* {{EGFF|atari|Atari ST Graphics Formats File Format Summary}}, from the [[Encyclopedia of Graphics File Formats]]
 
* {{EGFF|atari|Atari ST Graphics Formats File Format Summary}}, from the [[Encyclopedia of Graphics File Formats]]

Revision as of 20:47, 26 July 2020

File Format
Name NEOchrome
Ontology
Extension(s) .neo
Wikidata ID Q28049507

NEOchrome format is a raster image file format associated with the NEOchrome graphics editor for Atari ST.

See also NEOchrome Master.

Contents

Format details

NEOchrome files have a 128-byte header, followed by 32000 bytes of uncompressed image data, for a total file size of 32128 bytes.

NEOchrome images are 320×200 pixels, with 16 colors.

The format may seem to allow for other video modes, and other image dimensions. However, such files are generally not supported, and are probably not valid.

Software

Sample files

Resources

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Variants
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