Color & Vision
Transcript of Color & Vision
ARE BLACK AND WHITE COLORS? CONT.
Theory #2- Color as pigment/ coloring agents
• Black is a color
• Pure white is not a color
ARE BLACK AND WHITE COLORS? CONCLUSION
Vision and Reflection
• Black is not a color
• White is a color
COLOR-BLINDNESS
• Lack of color sensing pigment
Absence of red retinal photoreceptors.
Absence of blue retinal receptorsAbsence of green retinal
photoreceptors
Normal color vision
Plate 1What number do you see?
Plate 2What number do you see?
Plate 3What number do you see?
Plate 4What number do you see?
FUN COLOR FACTS• Red- The Aztecs considered red dye to be more valuable than gold
• Orange- Frito-Lay’s made a Cheeto that changed from neon-orange in your hand to blue or green in your mouth
• Yellow- The combinations of black writing on a yellow background are the best color combination for printed material
• Green- US currency is green because the pigment was readily available in large quantities and is resistant to chemical and physical changes
• Blue- A spider’s blood turns blue when exposed to oxygen