Sun Raster
{{Infobox file format
| name = Sun Raster
| extension = .ras, .sun
| owner = Sun Microsystems
| genre = Image file formats
| magic = 59A66A95h
| latest release version = 1.11
| latest release date = {{start date and age|1989|08|21|df=yes}}
}}
Sun Raster was a raster graphics file format used on SunOS by Sun Microsystems.{{cite book |last1=Murray |first1=James D. |last2=vanRyper |first2=William |date=May 1996 |title=Encyclopedia of Graphics File Formats |edition=Second |publisher=O'Reilly |isbn=978-1-56592-161-0 |at=sunraster |url=https://archive.org/details/mac_Graphics_File_Formats_Second_Edition_1996 |accessdate=2014-02-27 }} The format has no MIME type,.ras MIME type not [https://www.iana.org/assignments/media-types/media-types.xhtml#image registered] at IANA it is specified in @(#)rasterfile.h 1.11 89/08/21 SMI. The format was used for some research papers.{{Cite IETF |editor-last=McLaughlin |editor-first=L. |date=August 1990 |rfc=1179 |title=Line Printer Daemon Protocol |section=7.28 |sectionname=Print raster file |publisher=IETF |accessdate=2014-03-13}}{{cite web |last1=Werner |first1=Charles |last2=Wegmüller |first2=Urs |last3=Strozzi |first3=Tazio |last4=Wiesmann |first4=Andreas |date=October 2000 |title=Gamma SAR and interferometric processing software |url=http://earth.esa.int/ers/pub/ESA_DOC/gothenburg/051werne.pdf |accessdate=2014-03-12}}
ACDSee, FFmpeg, GIMP, ImageMagick, IrfanView, LibreOffice, Netpbm, PaintShop Pro, PMView, and XnView among others support Sun Raster image files.{{cite web |last=Sofer |first=Nir |title=.ras Extension |url=http://extension.nirsoft.net/ras |accessdate=2014-01-12}}{{cite web
|year=2013 |title=File Type: Sun Raster Image |publisher=Microsoft |work=Windows File Association |url=http://shell.windows.com/fileassoc/0409/xml/redir.asp?EXT=ras |accessdate=2014-01-12}} In version 2.13 XnView supported the file extensions .ras and .sun for this graphics file format. In version 2.1.4 FFmpeg could encode and decode Sun Raster pixel formats bgr24, pal8, gray, and monow.{{cite web |year=2014 |title=Image Formats |work=FFmpeg General Documentation |url=http://www.ffmpeg.org/general.html#Image-Formats |accessdate=2014-02-23}} The format does not support transparency.
The plain text Sun icon format specified in @(#)icon_load.h 10.5 89/09/05 SMI is unrelated to the Sun Raster format.{{cite book |last1=Murray |first1=James D. |last2=vanRyper |first2=William |date=May 1996 |title=Encyclopedia of Graphics File Formats |edition=Second |publisher=O'Reilly |isbn=978-1-56592-161-0 |at=sunicon |url=https://archive.org/details/mac_Graphics_File_Formats_Second_Edition_1996 |accessdate=2014-02-27 }}