Difference between revisions of "Raster images"

Revision as of 04:32, 22 May 2010

Uncompressed TIFF

JPEG

ImageMagick

Florida Digital Archive has "high confidence level" in ability to preserve uncompressed TIFF files: FDA Recommended Data File Formats.
"TIFF 6.0 has been commonly used at Harvard for digital master images, and is considered an archival file format suitable for long-term preservation." Harvard University Library, File Formats and Guidelines
Library of Congress considers TIFF 6.0 to be "one of the preferred formats for bitmapped images." Library of Congress Sustainability of Digital Formats: TIFF, Revision 6.0
Library and Archives Canada considers TIFF to be a recommended format for still images: Guidelines for Computer File Types, Interchange Formats and Information Standards
If images are ingested in PNG or lossless JPEG 2000 format they will be left in those formats rather than normalized to TIFF.

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 ==Comments==
 *Florida Digital Archive has "high confidence level" in ability to preserve uncompressed TIFF files: [http://www.fcla.edu/digitalArchive/formatInfo.htm FDA Recommended Data File Formats].
+*"TIFF 6.0 has been commonly used at Harvard for digital master images, and is considered an archival file format suitable for long-term preservation."  [http://hul.harvard.edu/ois/digpres/guidance.html Harvard University Library, File Formats and Guidelines]
 *Library of Congress considers TIFF 6.0 to be "one of the preferred formats for bitmapped images." [http://www.digitalpreservation.gov/formats/fdd/fdd000022.shtml Library of Congress Sustainability of Digital Formats: TIFF, Revision 6.0]
 *Library and Archives Canada considers TIFF to be a recommended format for still images: [http://www.collectionscanada.gc.ca/government/products-services/007002-3017-e.html Guidelines for Computer File Types, Interchange Formats and Information Standards]