Panasonic UF-E1, Service Manual

Page: 177 / 271

UF-E1
173
A profile is based on a collection of ITU-T facsimile coding methods.
6.5.7.5. Minimal Set
The minimum interchange set of TIFF fields that must be supported by all implementations in order to
assure that some form of an image, albeit black-and-white, can be interchanged. The table below summa-
rizes the TIFF fields that comprise the minimal interchange set for black-and-white facsimile. The Baseline
and Extenuation fields and fields values must be supported by all implementations.
Class Color Coding method Remarks
S B/W MH Internet Fax minimal set
F B/W MMR, MR Internet Fax full mode
J B/W JBIG Internet Fax mixed mode
C Color JPEG
(lossy) Color minimal set
L Color JPEG
(lossless, gray-
scale) One bit per color,palletized color image, continuos tone
color and grayscale images
M Color Mixed Raster
Content Multiple coders and resolution within a page
Baseline Fields Values
Bits Per Sample 1
Compression 3:1 dimension MH coding set T4 Options = 0 or 4
Fill Order Least significant bit first
Image Width 1728 (A-4)
Image Length N: total number of scan lines in image
New Sub File Type 2: Bit 1 identifies single page of a multi-page document
Page Number N,m: page number n followed by total page count m
Photometric Interpretation 0: pixel value 1 means black
Resolution Unit 2: inch
Rows Per Strip Number of scan lines per strip = Image length, with one strip
Samples Per Pixel 1
Strip Byte Counts Number of byte in TIFF strip
Strip Offsets Offsets from beginnings of file to single TIFF strip
X Resolution 204, 200 (pixels/inch)
Y Resolution 98, 196, 100, 200 (pixels/inch)
Extensions Fields
T4 Options
0: MH coding, EOLs not byte aligned
4: MH coding, EOLs byte aligned