[argyllcms] Re: What is the command to retrieve the color of a paper
- From: pierre bertin <pierrebert77@xxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Thu, 9 May 2013 08:03:33 +0100 (BST)
Thank you for it's accuracy
>
> Yes, spotread is the right command ... but that's * very * yellow for a
> paper. It's the sort of thing I'd expect from aged newsprint. If That Does
> not describe what you sampled, something else is amiss.
It is a color capture on an old yellow post-it
>
> I do not think anything other than Gimp supports eight-bit RGB values. Sadly,
> there is only one good tool for Manipulating other than eight-bit RGB files -
> Photoshop - and soon, if you do not Already own a copy, your only choice to
> rent it Will Be.
I have an old photoshop on a Windows computer (which I now use only very
rarely), I prefer to stay on linux
>
> But if you're just wanting to look up RGB values for a Lab or XYZ color in
> a Particular color space, that's what is for Argyll's xicclu.
I do not know the command "xicclu", thank you
For cons, I'm not sure how to use it
Here is a "spotread inputcolor.txt" from a Pantone solid to process (purchased
in 2001)
Reading X Y Z L * a * b *
### Yellow Solid Color###
1 68.988179 75.059983 7.770374 89.421084 -7.197040 90.760042
### Yellow CMYK###
2 69.828585 75.993609 7.880264 89.856374 -7.264686 91.083563
### Magenta Solid Color###
3 33.362212 17.426280 13.639228 48.792720 71.741607 1.939272
### Magenta CMYK###
4 33.584229 17.405077 13.610425 48.766431 72.631855 1.971272
### Cyan Solid Color###
5 17.200365 26.064724 52.291875 58.098435 -37.923215 -44.051122
### CMYK Cyan###
6 17.115275 26.082030 52.419053 58.114830 -38.458789 -44.162024
### Black Solid Color###
7 2.830724 2.863279 2.242507 1.281129 1.049011 19.487812
### Black CMYK###
8 2.802672 2.833733 2.273578 1.297894 0.561354 19.365324
To find the CMYK values should I use this command?
xicclu -ff -ip Fogra27L.icm < inputcolor-LAB.txt > outputcolor-CMYK.txt
as with file inputcolor-LAB.txt :
1 89.421084 -7.197040 90.760042
2 89.856374 -7.264686 91.083563
3 48.792720 71.741607 1.939272
4 48.766431 72.631855 1.971272
5 58.098435 -37.923215 -44.051122
6 58.114830 -38.458789 -44.162024
7 19.487812 1.281129 1.049011
8 19.365324 1.297894 0.561354
I have weird output result
Regards
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