JEITA CP-3451
- 21 -
Type
=
LONG
Default
=
none
JPEGInterchangeFormatLength
The number of bytes of JPEG compressed thumbnail data. This is not used for primary image JPEG data. JPEG
thumbnails are not divided but are recorded as a continuous JPEG bitstream from SOI to EOI. APPn and COM
markers should not be recorded. Compressed thumbnails shall be recorded in no more than 64 Kbytes, including
all other data to be recorded in APP1.
Tag
=
514 (202.H)
Type
=
LONG
Default
=
none
C. Tags Relating to Image Data Characteristics
TransferFunction
A transfer function for the image, described in tabular style. Normally this tag is not necessary, since color space is
specified in the color space information tag (ColorSpace).
Tag
=
301 (12D.H)
Type
=
SHORT
Count
=
3 * 256
Default
=
none
WhitePoint
The chromaticity of the white point of the image. Normally this tag is not necessary, since color space is specified in
the color space information tag (ColorSpace).
Tag
=
318 (13E.H)
Type
=
RATIONAL
Count
=
2
Default
=
none
PrimaryChromaticities
The chromaticity of the three primary colors of the image. Normally this tag is not necessary, since color space is
specified in the color space information tag (ColorSpace).
Tag
=
319 (13F.H)
Type
=
RATIONAL
Count
=
6
Default
=
none
YCbCrCoefficients
The matrix coefficients for transformation from RGB to YCbCr image data. No default is given in TIFF; but here the
characteristics given in Annex E, "Color Space Guidelines," is used as the default.
Tag
=
529 (211.H)
Type
=
RATIONAL
Count
=
3
Default
=
See Annex E