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TIFF and LibTiff Mail List Archive

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2003.04.06 12:04 "Fax Group 3 TIFF Images", by
2003.04.07 15:21 "Re: Fax Group 3 TIFF Images", by Jon Saxton
2003.04.08 06:24 "Re: Fax Group 3 TIFF Images", by Rich Pasco

2003.04.08 06:24 "Re: Fax Group 3 TIFF Images", by Rich Pasco

I have a question about fax images. What is the standard resolution for low- and high-resolution fax images? Where can I find official information about that?

Horizontal: 8 pixels/mm (203.2 pixels/inch)

Vertical:
  Regular: 3.85 lines/mm (97.79 lines per inch)
  Fine: 7.70 lines/mm (195.58 lines per inch)

These are buried in CCITT specs, FASCICLE VII.3 Recommendations T.0-T.63.

- Rich