AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

1998.07.09 13:53 "tiffsplit in a cronjob", by Humzah Jaffar
1998.07.09 15:24 "Re: tiffsplit in a cronjob", by Bjorn Brox
1998.07.09 16:11 "Re: tiffsplit in a cronjob", by Rex Jolliff
1998.07.09 15:54 "Re: tiffsplit in a cronjob", by Doug Vander Wilt
1998.07.09 16:30 "Re: tiffsplit in a cronjob", by Phillip Griffith
1998.07.09 18:52 "Whoopass! Re: tiffsplit in a cronjob", by Humzah Jaffar

1998.07.09 15:24 "Re: tiffsplit in a cronjob", by Bjorn Brox

Humzah Jaffar wrote this:

i have a cronjob running every morning using the tiffsplit command (from tifflib on DEC unix) to count the number of files in several 100 multi-page tiffs that are transferred into our storage. then i count the number of "xfiles" formed.

problem: i always get a count of 0. however when i run the same cronjob manually on the exact same files, it splits the files and counts the xfiles accurately. any ideas why? or is there a more efficient way to figure out how many files are in a multipage tiff?

You probably get zero because the current directory or user rights is different from what is used when executing it manually.

Why don't you just write a small program using libtiff, like this one:

----tiff_imagecount.c----
#include <stdlib.h>

#include "tiffio.h"

void main(int argc, char *argv[])
{
    TIFF *tif;

    if (argc != 2 || !(tif = TIFFOpen(argv[1], "r"))) {
        (void)fprintf(stderr, "USAGE: %s image.tif\n", argv[0]);
        exit(1);
    }
    (void)printf("%hu\n", TIFFNumberOfDirectories(tif));

    TIFFClose(tif);
    exit(0);
}
----

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Bjorn Brox, mailto:brox@corena.no, CORENA A/S, http://www.corena.no/
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