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COLOR

COLOR. A forced march through Color theory Anatomy of the retina. Terminology. Hue Brightness Saturation Resolving power Additive color mixing Subtractive color mixing. COLOR THEORY. Additive color mixing. Y. R + G =. R + B =. M. B + G =. C. W. R + G + B =.

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COLOR

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  1. COLOR A forced march through Color theory Anatomy of the retina

  2. Terminology • Hue • Brightness • Saturation • Resolving power • Additive color mixing • Subtractive color mixing

  3. COLOR THEORY Additive color mixing Y R + G = R + B = M B + G = C W R + G + B =

  4. Color mixing on the computer screen

  5. COLOR THEORY Subtractive color mixing G + B W - R = = C = M W - G= R + B = Y W - B = R + G K W - R - G - B =

  6. COLOR THEORY Subtractive color mixing, continued W – R – G = B W – G – B = R W - R - B= G

  7. Color mixing on the printed page:Xerox solid ink colors

  8. Subtractive color mixing on the printed page:the registration

  9. Subtractive mixing on the printed page:RED

  10. RED, Magnified

  11. Subtractive mixing on the printed page:GREEN

  12. GREEN, Magnified

  13. Subtractive mixing on the printed page:BLUE

  14. BLUE, Magnified

  15. Why does this work?

  16. I’m afraid you’ll find it’s a bit more complicated than that.

  17. Anatomy of the Retina Human eye at Molecular Expressions Optical Microscopy Primer

  18. Receptive Fields

  19. Resolving Power

  20. Blind spot Nasal side temporal side

  21. What receptors are in the fovea?

  22. Color Opponency

  23. Center/Surround Opponency individual photoreceptors R G B receptive field R G B Retina excitation inhibition excitation excitation to higher brain levels inhibition inhibition blue center/yellow surround double opponent ganglion cell

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