[argyllcms] Re: colprof: Error - rev: bwd vertex 0 is not prime or secondary
- From: Pascal de Bruijn <pmjdebruijn@xxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Sun, 6 Sep 2009 01:30:45 +0200
On Sat, Sep 5, 2009 at 11:40 PM, Graeme Gill<graeme@xxxxxxxxxxxxx> wrote:
> Pascal de Bruijn wrote:
>
>> 0%colprof: Error - rev: bwd vertex 0 is not prime or secondary
>
> Hmm. I'm not sure if this is a bug or not. It's not
> really valid to try and invert a monochrome response as if it
> was color. If the response has some volume you might succeed, but
> if it has zero volume in some areas you may well get strange
> numerical errors, much like you discovered.
>
> You can at least get a forward profile if you run with the -B
> flag (this is probably luck though.)
Oh, right...
I only need the forward conversion... It actually makes sense the
reserve won't work...
Regards,
Pascal de Bruijn
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