[argyllcms] Cctiff
- From: Roger Breton <graxx@xxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Fri, 29 Feb 2008 13:28:01 -0500
I'm trying to convert an image to Lab from its source CMYK device
coordinates.
My Output profile is called test.icm.
My Source CMYK image is called it8_73_basic.tif.
I type in:
>cctiff -v -ia test.icm it8_73_basic.tif it8_73_Lab.tif
And here's what I get:
> Input TIFF is 'it8_73_basic.tif'
> There are 1 profile in the sequence
> Profile 1 is 'test.icm' intent Absolute Colorimetric
> Output TIFF is 'it8_73_Lab.tif'
> TIFFReadDirectory: Warning, it8_73_basic.tif: wrong data type 1 for
> "XMLPacket";
> tag ignored.
> TIFFReadDirectory: Warning, it8_73_basic.tif: unknown field with tag 34665
> (0x87
> 69) encountered.
> Input TIFF file 'it8_73_basic.tif'
> TIFF file colorspace is CMYK
> TIFF file photometric is Separated
>
> Profile 0 'test.icm':
>
> Header:
> size = 120000 bytes
> CMM = 'argl'
> Version = 2.2.0
> Device Class = Output
> Color Space = CMYK
> Conn. Space = Lab
> Date, Time = 29 Feb 2008, 12:19:21
> Platform = Microsoft
> Flags = Not Embedded Profile, Use anywhere
> Dev. Mnfctr. = '????'
> Dev. Model = '????'
> Dev. Attrbts = Reflective, Glossy
> Rndrng Intnt = Relative Colorimetric
> Illuminant = 0.964203, 1.000000, 0.824905 [Lab 100.000000, 0.000498,
> -0.0 00436]
> Creator = 'argl'
>
> Direction = Forward
> Intent = Absolute Colorimetric
> Input space = CMYK
> Output space = Lab
>
> Possible photometrics for output colorspace Lab are:
> 1: CIELab
> 2: ICCLab
> cctiff: Error - An output photometric must be selected with the -e parameter
As you can see, I get an error about some 'output photometric' that must be
selected with the -e parameter.
Unfortunately, the -e parameter documentation does not say much:
> Choose TIFF output encoding from 1..n
I don't think this refers to some 'photometric' parameter?
Roger Breton
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