Hi,
I'm forwarding your question the mailing list, probably it would be
of interest for someone else.
> I display grey patches on the monitor for
> RGB values {(5*i,5*i,5*i) for i=0,1..51}
> and then measure XYZ values of these coloured patches.Now from
> these measured values I want to generate the ICC Profile of the
> monitor.
In order to generate an accurate (via measurement) monitor profile,
the steps are:
- Display (and measure) the patches stated in file "MonitorTemplate.it8"
present in "pics" directory. These patches are:
Name RGB
=== ====
CBL 0 0 255
CGR 0 255 0
CRD 255 0 0
DMIN 255 255 255
GS1 250 250 250
GS2 238 238 238
GS3 221 221 221
GS4 205 205 205
GS5 190 190 190
GS6 175 175 175
GS7 160 160 160
GS8 146 146 146
GS9 133 133 133
GS10 119 119 119
GS11 107 107 107
GS12 95 95 95
GS13 83 83 83
GS14 72 72 72
GS15 63 63 63
GS16 53 53 53
GS17 44 44 44
GS18 36 36 36
GS19 29 29 29
GS20 21 21 21
GS21 15 15 15
GS22 4 4 4
DMAX 0 0 0
These include your gray scale and a 3 additional patches for
primaries.
- Substitute the XYZ values of "MonitorTemplate.it8" for those
readed by your measurement device. You can also add more
patches if wish so, these are the minimum required. On more
patches, better the profile. The patch names are only a guide
and ignored by the profiler. The important thing is RGB/XYZ
values.
- Then you can use the precompiled "qtmonitorprofiler.exe" program,
select the radio button labelled "I want to build accurate profile from
measurement sheet". Enter the name of your it8 file. Fill the name of
output profile in "Output profile file" entry and press "GO" button.
That's all, the profiler will generate a profile using your measurements.
If you want to create a PROGRAM that generates profiles, well, it is
a bit more complex, since the profiler construction set is not currently
documented (only the application programs are). Anyway please contact
me in such case and I will try to explain how to do.
Regards,
Mart� Maria
The little cms project
http://www.littlecms.com
[EMAIL PROTECTED]
----- Original Message -----
From: "amit gupta" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, July 18, 2002 7:48 AM
Subject: Monitor profiler
> Dear Sir
> I am a student at Indian Institute of
> Technology,Delhi,India.I display grey patches on the monitor for
> RGB values {(5*i,5*i,5*i) for i=0,1..51}
> and then measure XYZ values of these coloured patches.Now from
> these measured values I want to generate the ICC Profile of the
> monitor.
> I downloaded the source code from your site
> http://www.littlecms.com/profilers.htm
> Will this code work for the windows in VC++.What part of the code
> will be sufficient for me.If there is some easier method other
> than using the source code given by you,Give me that method.
> Please do reply early.
> Thanking you for your kind help.
> Yours Sincerely
> Amit Gupta
>
>
>
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