1. January 8, 2009Califa Digital Symposium Imaging and Technical Issues Digitizing Adding Metadata Collection Management Archiving and Maintainability Find, display, print

2. January 8, 2009Califa Digital Symposium Capture

3. January 8, 2009Califa Digital Symposium Imaging and Technical Issues Digitizing  Determine media/object concerns  Resolution  Bit depth  File Format

4. January 8, 2009Califa Digital Symposium Imaging and Technical Issues Digitizing  Determine media/object concerns Original or surrogate (halftone)‏ Physical size of the analog object Equipment limitations Bindings, mounts, casings The area of interest (AOI)‏

5. January 8, 2009Califa Digital Symposium Imaging and Technical Issues Digitizing  Resolution Determine size of finest details Set sufficient to capture finest details Enough is enough Get enough on the first shot

6. January 8, 2009Califa Digital Symposium Imaging and Technical Issues Digitizing  Bit depth 1bit 2 colors (black/white)‏ 4bit 16 colors (palate)‏ 8bit 256 colors (palatte)‏ Humans distinguish 10 million colors 24bit 16.7 million colors (8bits per rgb channel)‏

7. January 8, 2009Califa Digital Symposium Imaging and Technical Issues Digitizing  File Format Native/Raw of the device Open known standard format Ability to add metadata into the file TIFF, JPEG, PDF, JPEG 2000, PNG TIFF just TIFF

8. January 8, 2009Califa Digital Symposium One size does not fit all. 600dpi 7.6 megapixel 3000 lines 35mm SLIDE 4x4 negative 8x10 print 24x36 Poster E-Size Engineering Drawing 150dpi 240ppi Capture

9. January 8, 2009Califa Digital Symposium Inform

10. January 8, 2009Califa Digital Symposium Imaging and Technical Issues Adding Metadata  Descriptive (cataloging/keywords)‏ Content/Folksonomy/Thesauri  Administrative (rights/management)‏  Technical (format/resolution)‏  Structural (page/chapter/volume)‏

11. January 8, 2009Califa Digital Symposium Imaging and Technical Issues Adding Metadata  External storage Must maintain links over time  Internal storage Travels with the digital object Can recreate an external database

12. January 8, 2009Califa Digital Symposium Imaging and Technical Issues Collection Management  Create collection level metadata  Augment object metadata  Organize for patron use

13. January 8, 2009Califa Digital Symposium Imaging and Technical Issues Archiving and Maintainability  Standardized formats (migration)‏  Full resolution images (eyes on the prize)‏  Use of checksums (robotic review)‏

14. January 8, 2009Califa Digital Symposium Find

15. January 8, 2009Califa Digital Symposium Imaging and Technical Issues Find, display, print  Indexing  Web distribution  High quality prints

16. January 8, 2009Califa Digital Symposium John Sarnowski Director john.sarnowski@ResCarta.org 608.566.5966 www.ResCarta.org