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October 2005
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2005.10.20 12:34 "Re: Read EXIF Tag", by <lou.sakey@kodak.com>
Chris,
Based on my experience, the TIFFTAG_EXIFIFD just provides the address of
where the exif IFD is located in the file.
It doesn't actually provide the entire exif blob. It would have been
better if it was more like the icc Profile tag which does return the
entire blob.
long value32;
if (TIFFGetField(m_TIFFHandle, TIFFTAG_EXIFIFD, &value32) == 1)
{
// open the file in binary mode
// read the tiff header to determine byte order
// seek to "value32"
// read and parse IFD at "value32";
}
Lou Sakey
DFIS WW S+SE LOWELL DEVELOPMENT CTR
Lou.Sakey@kodak.com
KNET 27-67676
978-323-7676