Raster images

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Preservation Format

Uncompressed TIFF

Access Format

JPEG

Normalization tool

ImageMagick

Comments

• 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.