tag:blogger.com,1999:blog-8350257063773144600.post4791324818550721892..comments2024-03-29T04:22:20.467-07:00Comments on Pete Shirley's Graphics Blog: Saturated colors look brighter than greysPeter Shirleyhttp://www.blogger.com/profile/17871569418798062417noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-8350257063773144600.post-34050564622016865882015-08-28T11:49:39.067-07:002015-08-28T11:49:39.067-07:00This was news to me until recently as well. &quo...This was news to me until recently as well. "Or *has* someone designed this corrected color coordinate system, and I'm just being doubly ignorant?" I am not aware of such a model, but there may indeed be one (for example, I have never looked at Hunt's model from a decade or so ago).<br /><br />As for gamma, I will make another post.Peter Shirleyhttps://www.blogger.com/profile/17871569418798062417noreply@blogger.comtag:blogger.com,1999:blog-8350257063773144600.post-50280731279926508022015-08-28T11:47:45.738-07:002015-08-28T11:47:45.738-07:00That paper about dominant wavelength is really int...That paper about dominant wavelength is really interesting and it implies the blue should look especially bright. Really cool paper thanks! (and color is so hard you can get a PhD in it!)<br />Peter Shirleyhttps://www.blogger.com/profile/17871569418798062417noreply@blogger.comtag:blogger.com,1999:blog-8350257063773144600.post-12090070003023116802015-08-27T02:54:47.536-07:002015-08-27T02:54:47.536-07:00Did you use the sRGB gamma<->linear conversi...Did you use the sRGB gamma<->linear conversion formulas as well?Danielhttps://www.blogger.com/profile/16338081684545437119noreply@blogger.comtag:blogger.com,1999:blog-8350257063773144600.post-28737349472471979162015-08-26T19:30:12.441-07:002015-08-26T19:30:12.441-07:00Ugh, so this paper claims this is also dependent o...Ugh, so this paper claims this is also dependent on the dominant wavelength: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2659800/<br /><br />Color is hard.Unknownhttps://www.blogger.com/profile/05566851554483852450noreply@blogger.comtag:blogger.com,1999:blog-8350257063773144600.post-82003987650751717562015-08-26T19:20:21.005-07:002015-08-26T19:20:21.005-07:00Huh, I'd never heard of this effect (and shame...Huh, I'd never heard of this effect (and shame on me, I taught data visualization last semester!).<br /><br />I'm pretty surprised that someone hasn't tried to create a coordinate system that corrects this. The most popular "perceptually-accurate" parametrization these days is a polar coordinate transformation of the uv in Luv (often called "HCL", where C is "Chroma", and H is Hue). It's like HSV and HSL but the L is actually the L in Luv.<br /><br />I just checked and (of course) the luminance of those three colors is about the same, but their chroma is quite different. I now want an undergrad to run the experiment where we fit a corrected L* curve that is a function of L and C and which corrects for Helmholtz-Kohlrausch.<br /><br />Or *has* someone designed this corrected color coordinate system, and I'm just being doubly ignorant?Unknownhttps://www.blogger.com/profile/05566851554483852450noreply@blogger.com