Make subIFD specified by byte offset current IFD
setSubDirectory(tiffobj,offset) sets the
subimage file directory (subIFD) specified by
current IFD. The offset value is given in bytes. Use this method
when you want to access subIFDs linked through the
Open a TIFF file and read the value of the
SubIFD tag in the current IFD. The
SubIFD tag contains byte offsets that specify the location of subIFDs in the IFD. The TIFF file should contain subIFDs.
t = Tiff('example.tif','r');
Read the value of the SubIFD tag to get subdirectory offsets.
offsets = getTag(t,'SubIFD');
Set one of the subdirectories (if more than one) as the current directory.
This method corresponds to the
in the LibTIFF C API. To use this method, you must be familiar with
the TIFF specification and technical notes. View this documentation
- TIFF Library and Utilities.