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TIFF Tag T6Options
| IFD | | Image |
|---|---|---|
| Code | 293 (hex 0x0125) | |
| Name | T6Options | |
| LibTiff name | TIFFTAG_GROUP4OPTIONS | |
| Type | LONG | |
| Count | 1 | |
| Default | 0 |
Description
Options for Group 4 Fax compression
This field is made up of a set of 32 flag bits. Unused bits must be set to 0. Bit 0 is the low-order bit.
The specification defines these bits:
Bit 0 is unused and always 0.
Bit 1 is 1 if uncompressed mode is allowed in the encoding.
LibTiff defines the single significant bits as follows:
GROUP4OPT_UNCOMPRESSED = 2;
In earlier versions of TIFF, this tag was named Group4Options.
Readers should honor this option tag, and only this option tag, whenever Group 4 Fax encoding is specified for Compression.