[argyllcms] Re: uuups ... spec2cie swamps my HD

  • From: Gerhard Fuernkranz <nospam456@xxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Sun, 13 Jan 2008 13:29:50 +0100

Graeme Gill wrote:
Klaus Karcher wrote:
$ spec2cie -f -I F8 test.ti3 test_F8.ti3
Unknown: Warning - Can't find a media white patch to init FWA
I produced a 38 GB file impressively rapid this way ;-)

I'm not sure why, but I wasn't able to reproduce this.

I can't reproduce this either on Linux. But the result is garbage:

[...]
BEGIN_DATA
1 100.00 0.0000 0.0000 0.0000 249.00 278.76 266.67 260.88 245.49 254.72 276.52 238.97 238.51 233.15 220.01 221.00
230.06 238.43 246.32 257.34 266.57 261.58 240.00 241.00 245.00 248.00 248.00 248.00 252.00 262.00 287.00 338.00 43
7.00 610.00 902.00 1336.0 1915.0 2585.0 3254.0 3899.0 %6.0-2147483644f %6.0-2147483644f %6.0-2147483644f %6.0-2147
483644f %6.0-2147483644f %6.0-2147483644f
[...]

I havent analyzed in detail, but I think that as consequence of not finding a reasonable white patch, the conversion from spectral to XYZ and Lab with FWA compensation yields NaN, and real_format() in cgats.c is not prepared to deal with NaN numbers.

Without "-f" I get reasonable results.

Regards,
Gehard

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