Really small color checker?
Hey all, I am shooting macro, later down the line possibly getting into micro, and was wondering if there exists a color checker card the size of a stamp or smaller. If not, are there any other solutions for getting color correct images at this small a subject size? Thank you Dimitri Katsaros
The ColorGauge targets from Image Science Associates have two models; the Nano and Pico, which should fulfill your needs. http://www.imagescienceassociates.com/mm5/merchant.mvc?Screen=CTGY&Store_Cod... Robin Myers On Apr 29, 2015, at 3:31 PM, Dimitri Katsaros <dcka@yahoo.com> wrote:
Hey all,
I am shooting macro, later down the line possibly getting into micro, and was wondering if there exists a color checker card the size of a stamp or smaller. If not, are there any other solutions for getting color correct images at this small a subject size?
Thank you Dimitri Katsaros
On Apr 29, 2015, at 3:31 PM, Dimitri Katsaros <dcka@yahoo.com> wrote:
I am shooting macro, later down the line possibly getting into micro, and was wondering if there exists a color checker card the size of a stamp or smaller. If not, are there any other solutions for getting color correct images at this small a subject size?
Your local paint shop should be able to match all 24 of the ColorChecker patches, with the caveat that some places with older setups have gamuts smaller than a couple of the patches. The matches will be spectrally accurate to within the same kind of precision as you see in commercial charts, especially after they've been used a bit. I'll also note that some places will be happy to sell you pint-sized "samples" that'll be more than you'll need for a lifetime's worth of charts...or at least the shelf lifetime of the unused paint.... Armed with such a set of paints, you can make charts as big or as small as your paintbrushes permit. It's also worth noting that, while the standard ColorChecker 24 patches are a pretty good sampling of the color space, there's nothing at all sacred about them. You may wish to consider making your own selection based on the actual pigments you're going to be photographing. ...and, as a last "spend no money" option...you can always individually photograph micrographs each of the 24 patches and use an image editing application to montage them into a single frame, or otherwise combine the data for your profiling application. b&
Ben, how would I have the software to read the home made patch? David
On May 1, 2015, at 5:03 PM, Ben Goren <ben@trumpetpower.com> wrote:
On Apr 29, 2015, at 3:31 PM, Dimitri Katsaros <dcka@yahoo.com> wrote:
I am shooting macro, later down the line possibly getting into micro, and was wondering if there exists a color checker card the size of a stamp or smaller. If not, are there any other solutions for getting color correct images at this small a subject size?
Your local paint shop should be able to match all 24 of the ColorChecker patches, with the caveat that some places with older setups have gamuts smaller than a couple of the patches. The matches will be spectrally accurate to within the same kind of precision as you see in commercial charts, especially after they've been used a bit. I'll also note that some places will be happy to sell you pint-sized "samples" that'll be more than you'll need for a lifetime's worth of charts...or at least the shelf lifetime of the unused paint....
Armed with such a set of paints, you can make charts as big or as small as your paintbrushes permit.
It's also worth noting that, while the standard ColorChecker 24 patches are a pretty good sampling of the color space, there's nothing at all sacred about them. You may wish to consider making your own selection based on the actual pigments you're going to be photographing.
...and, as a last "spend no money" option...you can always individually photograph micrographs each of the 24 patches and use an image editing application to montage them into a single frame, or otherwise combine the data for your profiling application.
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On May 7, 2015, at 9:44 AM, Spinnaker Photo Imaging Center <spinnakerphotoimagingcenter@dnmillerphoto.com> wrote:
Ben, how would I have the software to read the home made patch?
Any instrument is going to ship with software that can do spot measurements. Whether or not that software can also do input profiling with arbitrary charts is another question...but the good news is that Argyll is free, at least matches and generally surpasses the commercial offerings in terms of quality, and supports pretty much any type of profiling or workflow or whatever. http://www.argyllcms.com/ The bad news is that it's command-line based, which scares some people in this day and age...but Graeme's documentation is excellent so that shouldn't be a problem. If you prefer the pointy-clicky, there're lots of commercial options depending on how much money you're willing to spend.... Cheers, b&
participants (4)
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Ben Goren
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Dimitri Katsaros
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Robin Myers
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Spinnaker Photo Imaging Center