TIFF Tag FillOrder
IFD | Image |
---|---|
Code | 266 (hex 0x010A) |
Name | FillOrder |
LibTiff name | TIFFTAG_FILLORDER |
Type | SHORT |
Count | 1 |
Default | 1 (lower column values in higher order bits) |
Description
The logical order of bits within a byte.
The specification defines these values:
1 = pixels with lower column values are stored in the higher-order bits of the byte.
2 = pixels with lower column values are stored in the lower-order bits of the byte.
The specification goes on to warn that FillOrder=2 should not be used in some cases to avoid ambiguity, and that support for FillOrder=2 is not required in Baseline TIFF compliant readers.
LibTiff defines these values:
FILLORDER_MSB2LSB = 1;
FILLORDER_LSB2MSB = 2;
In practice, the use of FillOrder=2 is very uncommon, and is not recommended.