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An experimental tool post to crowdsource the average 'gamma value' for the
world wide web. To learn more about gamma you can read the FAQ and also the FQA by Charles Poynton.
Instructions
1. Use '+' and '-' buttons to make the corresponding patches above the buttons lighter or darker.
2. Create a visually equal spaced gray ramp from black on the left to
white on the right. That is the jumps in lightness between neighbors
should be roughly equal and the ramp should be getting progressively
lighter.
3. Click on the 'Plot' button to see your results(black) plotted versus the world wide gamma(red).
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| Posted by Giordano Beretta or Nathan Moroney on Friday, May 09, 2008 at 7:25:00 PM |
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Terminal three of the San Francisco airport is currently hosting an exhibit
on Catlinaware. These depression era ceramic products produced on
Catalina island are quite striking. They were manufactured in a range
of colors, including toyon red. The display about the glazes used for
Catalinaware noted that in total nearly twenty different glazes were
used, and many were inspired by the natural colors of the island.
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| Posted by Giordano Beretta or Nathan Moroney on Thursday, May 01, 2008 at 12:03:00 PM |
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| We know optically the eye is like a simple meniscus camera that projects an image onto the retina. We also know that on the cortex there is a holomorphic map of the visual field. However we know very little of what happens in between. For example, in the lateral geniculate nucleus (LGN) there are seven layers, and if we stick a toothpick in a point like in a club sandwich, the layers are geometrically aligned. |
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| Posted by Giordano Beretta or Nathan Moroney on Tuesday, April 29, 2008 at 5:52:00 PM |
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Conference Overview
We are delighted to invite you to the sixteenth Color
Imaging Conference
in Portland, Oregon. This will be the first time this conference has
been held in the Pacific northwest and we anticipate another strong
program of tutorials and papers in all areas of color imaging.
Author Reminder
For those of you out there considering submitting a paper to CIC 16, please keep in mind the author instructions here and the April 13th submission deadline.
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| Posted by Giordano Beretta or Nathan Moroney on Thursday, April 03, 2008 at 5:26:00 PM |
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| First an administrative note. Most feedback we get from you, our esteemed readers, is in the form of personal email. Only rarely are we able to generate sufficient controversy to spark a debate in the blog comment section, such as with Non-local realism, An On-Line Color Thesaurus, or yesterday's Revolutionary White Reflectance Standard for Metrology. Therefore, we are happy for every good comment we get. However, as you are aware our blog server is rather crafty, and it is difficult for us to find comments when you replace the post title with your own title. This summer HP will be upgrading to commercial blogging software and this blog will run smoother, hopefully even multilingually. In the meantime here is my answer to a comment on color lawsuits I was unable to locate. |
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| Posted by Giordano Beretta or Nathan Moroney on Wednesday, April 02, 2008 at 4:57:00 PM |
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Today two color scientists at HP Labs announced the introduction of a
revolutionary new white reflectance standard for metrology. This new
reflectance standard is a breakthrough in terms of cost, simplicity and
unique environmentally friendly disposal process. This new white
standard will have broad impact in the fields of photonics, digital
photography and color measurement and is available for immediate
commercial and research use.
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| Posted by Giordano Beretta or Nathan Moroney on Tuesday, April 01, 2008 at 1:50:00 AM |
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