color-and-composition - Color and Composition Brian Bailey...

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Color and Composition Brian Bailey
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Announcements Signup for demonstration of prototype link is on the main course web page I2CS should work with TA to: conduct remote demonstration, make executable available to run locally, or make a narrated video Poster update HW3 due Nov. 18
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Good Visual Design Convey meaning and tone Structure, prioritize, unify elements Communicate brand Improve aesthetics
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Today’s Lecture Guidelines for enhancing visual design not expected to be a visual design expert Knowing the basics is useful projects, presentations, posters, diagrams, and data visualization Color and composition
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Resources Grid Systems Kimberly Elam 2004 Designing Visual Interfaces Mullet and Sano 1994 The Visual Display of Quantitative Information Edward R. Tufte 2001
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Visible Spectrum
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Visual System Retinal image Transduction rods and cones Processing bipolar and ganglion cells
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Rods and Cones Rods Respond to lower levels of light energy One type, responds to changes in light energy Exist in retina, not fovea 20x more rods Enhance peripheral vision Cones Respond to higher levels of light energy Three types – respond to different wavelengths Concentrated in fovea, sparsely in retina Enhance perception of form (visual acuity)
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Rod and Cone Density
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Density Demonstration
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Trichromatic Theory Color vision stems from three receptor types based on the three-primaries law ratios of stimulation produce color http://hyperphysics.phy-astr.gsu.edu/hbase/vision/colcon.html#c1
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Color Blindness Difficulty in distinguishing hues affects about 1 in 12 people about 8% of males; 0.5% of females in rare cases, one can see no color at all Caused by missing or bad cones Inherited or acquired
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This note was uploaded on 03/04/2012 for the course CS 465 taught by Professor Karahalios,k during the Fall '08 term at University of Illinois, Urbana Champaign.

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color-and-composition - Color and Composition Brian Bailey...

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