tiffobj.setDirectory(dirNum) sets the image file directory (IFD) specified by dirNum as the current IFD. Tiff object methods operate on the current IFD. The directory index number is one-based.
Open a TIFF file and move to an IFD in the file by specifying its index number. The TIFF file should contain multiple images.
t = Tiff('example.tif','r'); t.setDirectory(2); t.close();
This method corresponds to the TIFFSetDirectory function in the LibTIFF C API. To use this method, you must be familiar with the TIFF specification and technical notes. View this documentation at LibTIFF - TIFF Library and Utilities.