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Color and Color Perception. a physicists view of color…

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Presentation on theme: "Color and Color Perception. a physicists view of color…"— Presentation transcript:

1 Color and Color Perception

2 a physicists view of color…

3 a human view of color…

4 how many “colors” did you see? wavelength-wise I only gave you red, white and black all burger images from: http://people.msoe.edu/~taylor/eisl/land.htm

5

6 let’s have a look at a white screen should have all wavelengths in it …

7 red…

8 green

9 blue

10 and everything in-between … 100% red100% green100% blue the yellow’s and purples are a bit crappy, but we can fix that:

11 color spaces…

12 what did you find in your color assignment ? how does color change during the day? which colors are more pleasing? how can we change that ?

13 a close-up of your camera sensor Bayer pattern http://en.wikipedia.org/wiki/File:Bayer_pattern_on_sensor.svg

14 white balance… your camera records only red, green and blue… the way your colors look is determined how these three colors are weighted by your camera and any image processing software on-camera controls - white balance


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