color
DESCRIPTION
COLOR. Pigment Colors. Mixing color of pigment (i.e.) paints is different than mixing colors of light. Primary color of pigments Magenta Yellow Cyan These colors are mixed to form secondary colors. Seeing Color. Your eyes see color using cones in your eye. - PowerPoint PPT PresentationTRANSCRIPT
COLOR
Pigment Colors
Mixing color of pigment (i.e.) paints is different than mixing colors of light.
Primary color of pigmentsMagentaYellowCyan
These colors are mixed to form secondary colors.
Seeing Color
Your eyes see color using cones in your eye.
Your eyes use rods to see in low light situations.
Cones do not work well in low light.
Colors of light
Light also has three primary colors:RedBlueGreen
Mixing two of these colors give us secondary colors.
Mixing all three give us white light.
From Longest to Shortest λ
RedRed OrangeOrange YellowYellow GreenGreen BlueBlue IndigoIndigo VioletViolet
We use the mnemonic Roy G. Biv to help us remember this.
Electromagnetic spectrum
Seeing Colors of Light
For opaque (objects you can’t see through) you see the color or colors the object reflects.
Ex: When white light shines on a strawberry all colors of light but red are absorbed. So you see red.
Seeing Colors of Light
If something appears white all colors of light are reflected.
If something appears black all colors of light are absorbed.
Seeing Colors For transparent
and translucent objects you see the color of light that is transmitted through the object.
Ex. If something appears green then only green light is transmitted
Optical Illusions An optical illusion is designed to
“trick” the eye.
Which is darker A or B?
They are the same!
Rotating Snakes
How many colors are there?
Pictures with multiple meanings…
Pictures with multiple meanings…
Pictures with multiple meanings…
Pictures with multiple meanings…
Pictures with multiple meanings…
Pictures with multiple meanings…
