IETF 55th Meeting, Atlanta, GA 1IFax WG, 20 Nov 2002 TIFF-FX Interop Testing Robert Buckley Co-author, TIFF-FX

IETF 55th Meeting, Atlanta, GA 2IFax WG, 20 Nov 2002 Internet Standards Process - RFC 2026 l Goals l Technical excellence; l Prior implementation and testing; l Clear, concise, and easily understood documentation; l Openness and fairness; and l Timeliness. l Procedures l Fair, open, and objective; l Reflect existing (proven) practice; and l Flexible.

IETF 55th Meeting, Atlanta, GA 3IFax WG, 20 Nov 2002 Internet Standards - RFC 2026 l Draft Standard “Elevation to Draft Standard is a major advance in status, indicating a strong belief that the specification is mature and will be useful.” l Internet Standard “In general, an Internet Standard is a specification that is stable and well-understood, is technically competent, has multiple, independent, and interoperable implementations with substantial operational experience, enjoys significant public support, and is recognizably useful in some or all parts of the Internet.”

IETF 55th Meeting, Atlanta, GA 4IFax WG, 20 Nov 2002 Original TIFF-FX Interoperability Report l Submitted to WG Chair and AD on March 9, 1999 l Participants l Japan Color Document Committee - All profiles –Matsushita Graphic Communication Systems –Toshiba TEC –Sharp –NTT Printec –Mitsubishi –Fuji Xerox –Waseda University l Genoa Technology - All profiles –now Quality Logic l Xerox - All profiles l Intel - All profiles, except L l Image Power - All profiles, except L and M

IETF 55th Meeting, Atlanta, GA 5IFax WG, 20 Nov 2002 Interoperability Testing l “The interoperability results are based on testing between at least 2 independent implementations. Fields and features listed as implemented by the Reader were verified with TIFF-FX files created by an independent writer. Fields and features implemented in the Writer were verified by an independent reader, using visual checks (view and print) and, in the case of lossless compression, by pixel comparisons of the original and decompressed source images.”

IETF 55th Meeting, Atlanta, GA 6IFax WG, 20 Nov 2002 Profile S Implementations Other Feature/Values l Fixed l Byte Order (II), BitsPerSample (1), Compression (3), FillOrder (2), ImageWidth (1728), NewSubFileType (2), PhotometricInterpretation (0), ResolutionUnit (2), SamplesPerPixel (1), XResolution (200/204) l Derivative l ImageLength, PageNumber, RowsPerStrip, StripByteCounts, StripOffsets

IETF 55th Meeting, Atlanta, GA 7IFax WG, 20 Nov 2002 Profiles F and J Implementations l Fixed Feature/Values l BitsPerSample (1), NewSubFileType (2), SamplesPerPixel (1) l Derivative Feature/Values l ImageLength, ImageWidth, PageNumber, StripByteCounts, StripOffsets

IETF 55th Meeting, Atlanta, GA 8IFax WG, 20 Nov 2002 Profile C Implementations l Fixed Feature/Values l ChromaPositioning (1), Compression (7), NewSubFileType (2), PhotometricInterpretation (10), ResolutionUnit (2) l Derivative Feature/Values l ImageLength, ImageWidth, PageNumber, RowsPerStrip, StripByteCounts, StripOffset

IETF 55th Meeting, Atlanta, GA 9IFax WG, 20 Nov 2002 Profile L Implementations l Fixed Feature/Values l Compression (10), NewSubFileType (2), ResolutionUnit (2) l Derivative Feature/Values l ImageLength, ImageWidth, PageNumber, RowsPerStrip, StripByteCounts, StripOffset

IETF 55th Meeting, Atlanta, GA 10IFax WG, 20 Nov 2002 Profile M Implementations l Fixed Feature/Values l Mask-PhotometricInterpetatiopn (0), ResolutionUnit (2) l Derivative Feature/Values l Image Layer, ImageLength, ImageWidth, PageNumber, RowsPerStrip, StripByteCounts, StripOffset

IETF 55th Meeting, Atlanta, GA 11IFax WG, 20 Nov 2002 Interoperability Results l At least two independent and interoperable implementations for all features l Exceptions: l 12-bit JPEG compression l CMY(K) Foreground/Background l Update TIFF-FX accordingly

IETF 55th Meeting, Atlanta, GA 12IFax WG, 20 Nov 2002 TIFF-FX Products l Interop Testing l March 1999: 11 participants l September 2000: 12 participants l Altogether, 19 different companies –backed up by products l TIFF-FX based products appearing by 1999 l ITU-T Rec. T.37 references TIFF-FX l All profiles now in products (except L?) l Profile M: 2 licenses have been issued l Profile J: 3 licenses have been issued l TIFF-FX enjoys significant public support