nextDirectory

Get information on the Photometric tag of the image in the current IFD, navigate to the next image in the file, and examine the same tag for the next image.

Create a Tiff object for the file example.tif.

t = Tiff('example.tif','r');

Display the current directory number and get the value of the Photometric tag from the current IFD. A value of 2 for the Photometric tag corresponds to the colorspace RGB in the TIFF specifications.

dirNum = currentDirectory(t) 

dirNum = 
1

value = getTag(t,'Photometric')

value = 
2

Navigate to the next IFD

nextDirectory(t);

Display the current directory number and get the value of the Photometric tag from this IFD. A value of 1 for the Photometric tag corresponds to the colorspace MinIsBlack in the TIFF specifications.

dirNum = currentDirectory(t)

dirNum = 
2

value = getTag(t,'Photometric')

value = 
1

Close the Tiff object.

close(t);