Hi Nikolay,
Thank you for your help. I created a new ColorChecker SG chart with
different colors and successfully converted it to RGB using scanin. It
works magic! The only thing I need to do is convert rgb values to cielab.
On Mon, Sep 11, 2017 at 8:17 AM Nikolay Pokhilchenko <
dmarc-noreply@xxxxxxxxxxxxx> wrote:
David, I'll try to find my DCCSG files for automatic recognition of color
checker by a scanin. Wait for 8-9 hours, I'll be at home. About 2012 I've
built cht file with appropriate margins to exclude the black grid of the
target between the patches. Not sure which method is the best to send you
an archive with files.
понедельник, 11 сентября 2017г., 14:44 +03:00 от David Irisarri
zuiko3000@xxxxxxxxx:
Thank u all for your help.
I know Patchtool is really nice but I dont want to pay $125. If it works
what I am doing I'll buy it but for this trial, I prefer to use Argyllcms
which is amazing.
All best,
David
On Sun, Sep 10, 2017 at 6:33 AM Joe Tschudi <tresorjoe@xxxxxxxxx> wrote:
Dave,
PatchTool has the Extract-Target-from-Image function that lets you get
even 8 or 16bit LAB data from a (8 or 16bit) TIF image instantly.
Especially if you have a target-type scanned or photographed image with
hundreds or thousands of patches that speeds up your work infinitely. After
extraction you can export a CGATS type file for further processing.
Best,
Joe
Am 10.09.2017 um 02:47 schrieb David Irisarri <zuiko3000@xxxxxxxxx>:
Thank u so much for all your ideas. I was going to do it manually but I
though 140 patches!!! But that's fine. I usually use patchtool from
babelcolor and I manually type all Lab values. I could convert 140 patches
in one sec with Patchtool but is $125. Scanin is doing the hard stuff.
Thanks again,
Dave
On Sat, Sep 9, 2017 at 4:31 PM Ben Goren <ben@xxxxxxxxxxxxxxxx> wrote:
On Sep 9, 2017, at 8:18 AM, David Irisarri <zuiko3000@xxxxxxxxx> wrote:
I am trying to create a cgats file from an AdobeRGB tiff image of aColorCheckerSG that has been manipulated. Then I'll use that file in
another software to create a dcp color profile. I could convert every rgb
value manually but it would take me a while to do it.
If you're just looking for L*a*b* textual data, and you're starting with
textual RGB data, you can use Argyll's xicclu. There's enough patches in
the ColorChecker SG for it to be worth a bit of work with awk / sed / your
favorite text editor to automate it...but there's not so many that you
can't do it manually (perhaps with copy / paste) if that's not your thing.
If you need to create an RGB image of a chart, you can use printtarg to
create a TIFF and then your favorite image editing software to wrangle the
patches into place.
If you need to create a L*a*b* image...I don't _think_ Argyll directly
supports that, though you might be able to do so with cctiff. But you can
certainly do so programmatically with ImageMagick.
Cheers,
b&
