Talk:Highcolor

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[edit] Useful demonstration images

For anyone who wishes to enhance the article visually, there's a series of image I've uploaded to the Commons:

The thing is, I don't know how to incorporate it into the articles, because 1) I don't know how to fit the images, even as thumbnails, without wreaking havoc on the page layout, and 2) when presented as thumbnails, the scaling resamples the images, thereby rendering them useless for the colour depth demonstration unless the reader follows the links to the full-sized images. --Shlomi Tal ☜ 20:31, 24 June 2006 (UTC)

[edit] COLOR QUESTION

Hey, I realize that this is not exactly the forum for this question, but I am looking for a relatively obscure answer that no one has been able to help me with so far. I'm trying to make stimulus for a psych experiment using CIE space, so I made it in photoshop with LAB color, a CIE space, but I can't save it as anything but a Tiff which most other applications won't load. I can save it as an 8-bit LAB color tiff, which will sort-of load, or a 16-bit RGB color .PNG file, which will load. The problem is that the two look very different, and I dont know which is closer to the true 16-bit LAB color. Any ideas? thanks and sorry for posting a somewhat irrelevant question here.

[edit] Colour component packing

Does anyone know how the 8 bit colour values are packed into the 5/6 bits? The simplest method seems to be to just remove the 3/2 lsbs. --Dean Earley 12:54, 2 November 2006 (UTC)

Dean:

Our amps go to 11.210.84.60.22 10:46, 3 February 2007 (UTC)

[edit] Graphic??

What is the point of the graphic?

What relevance does the caption have to this article? ("Human eyes are more sensitive to green light. The greens are easier to see than the reds, and the blues are almost impossible to see.")

Assuming some relevance, what does "the blues are almost impossible to see" mean? I can see the blue in the graphic fine.

Or is all this simply "plausible vandalism"? —Preceding unsigned comment added by 65.192.31.130 (talk) 19:06, August 28, 2007 (UTC)

It's somebody being confused. For color perception, blue is most important. For brightness perception, green is most important. We perceive details best with a yellow-green color. Thus a better way to encode at 16 bits per pixel would be to pack 32 bits with 2 red pixels at 6 bits each, 2 green pixels at 6 bits each, and 1 wide blue pixel with 8 bits. The subsampling commonly used for JPEG and video takes advantage of this in a more complicated way. 24.110.145.32 21:19, 16 September 2007 (UTC)

[edit] Self-reference

Wikipedia:Avoid self-reference states that articles should avoid assuming that the article is being read on a screen, as this one does. I suggest being more vague and saying something like "this demonstration may not work if the colors in the image have not been correctly preserved". Dcoetzee 22:58, 9 January 2008 (UTC)