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January 2005
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2005.01.21 21:49 "Re: deleting tags!", by Andrey Kiselev
On Fri, Jan 21, 2005 at 09:27:43PM +0100, Antoine wrote:
> I guess I'll have a look and see what I can understand in tiffcp. In
> fact, for what we wanted to do getting rid of the unknown tags was a
> feature! There were some tags photoshop put in that are also not in the
> ATA spec, so they had to go - tiffcp not copying them was great. I guess
> at the very least it will be a good base to work from. I warn you, you
> may get some silly questions though. I will try my best ;-).
Antoine,
If the input files are all in the same simple format you can easily
write a tool to convert them in the form you need. Attached code should
help you to understand the basic idea how to do that.
Andrey
--
Andrey V. Kiselev
Home phone: +7 812 5970603 ICQ# 26871517
#include <stdio.h>
#include <stdlib.h>
#include "tiffio.h"
int main (int argc, char **argv)
{
unsigned int i;
TIFF *tif, *out;
uint16 spp, bpp, photo;
uint32 image_width, image_height, scansize;
char *buf;
if(argc < 3)
{
fprintf(stderr, "\nUSAGE: tiffcopy infile.tif outfile.tif\n");
return 1;
}
tif = TIFFOpen(argv[1], "r");
if (!tif)
{
fprintf (stderr, "Can't open %s for reading\n", argv[1]);
return 2;
}
out = TIFFOpen(argv[2], "w");
if (!out)
{
fprintf (stderr, "Can't open %s for writing\n", argv[2]);
return 3;
}
TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &image_width);
TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &image_height);
TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &bpp);
TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &spp);
TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photo);
scansize = TIFFScanlineSize(tif);
buf = _TIFFmalloc(scansize * image_height);
for (i = 0; i < image_height; i++)
TIFFReadScanline(tif, buf + i * scansize, i, 0);
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, image_width);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, image_height);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, bpp);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, spp);
TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photo);
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, TIFFDefaultStripSize(out, 0));
for (i = 0; i < image_height; i++)
TIFFWriteScanline(out, buf + i * scansize, i, 0);
_TIFFfree(buf);
TIFFClose(out);
TIFFClose(tif);
return 0;
}