Hi,

> i am trying to validate the 'icctrans'-values for sRGB IEC61966-2.1 to L*a*b* 
>conversion.

Humm... I have checked this utility extensively, and seemed to work.
Are you sure Photoshop is using sRGB as workspace (Edit-Color settings-Working spaces 
RGB)?

I'm also attaching latest source, with some small additions. But anyway the old one 
did work properly to me...

This would give sRGB to Lab

icctrans -v

And this Lab to sRGB

icctrans -i*Lab

If this don't work to you, could please send any values that makes it fail? Thanks.

Regards,
Mart� Maria
The little cms project
http://www.littlecms.com
[EMAIL PROTECTED]






  ----- Original Message -----
  From: Andreas Sch�mann
  To: [EMAIL PROTECTED]
  Sent: Friday, March 15, 2002 5:10 PM
  Subject: [Lcms-user] conversion sRGB to L*a*b* fatal error


  hello marti,

  i am trying to validate the 'icctrans'-values for sRGB IEC61966-2.1 to L*a*b* 
conversion.
  i want to validate against adobe photoshop - i simply use the 'color picker' to get 
values.
  i am unlucky :(
  neither the built in profile 'cmsCreateLabProfile(NULL)' nor 'lcmstiff8.icm' nor 
'tifflab8spac.icm' give me the photoshop
values.

  i built lcms 1.08 with cygwin on win2000, build looked ok.

  what do you think?
  maybe i missed something?
  i'm not sure whether i use the right profiles.

  regards,
  andreas


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