> Does anybody know where the header is automatically
> written in Tiff and Raw stack?
ImageJ puts TIFF header information in the first 768 bytes of the file.
Raw images and stacks do not have a header.
> Because I'd like to read the information of height and
> width of each image and number of images in the stack
> with our codes programmed with C.
Bytes 0-7 contain the TIFF header. Within the header, bytes 0-1 are
always "MM", indicating big-endian byte order. The first IFD (Image
File Directory) starts at byte 8. Within the IFD, bytes 30-31 contain
the image width and bytes 42-43 contain the height. The number of
images in the stack can be found by doing a string search in the first
768 bytes for "images=". For example, with a 350 slice stack, the
string "images=350" will be somewhere within the first 768 bytes of the
file.
Why not use a tiff library like libtiff (
http://www.libtiff.org/) to
open the images?
-wayne
Locked
