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Color Modes

Defining how to understand and use them.
by

Tim Samoff

on 1 October 2016

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Transcript of Color Modes

Color Modes
Understanding
& Using
This presentation could talk a lot about Image Resolution but this 8-minute video says it better...
(Sorry about the sound!)
So, now that we know everything we wanted to know about Image Resolution...
Let's talk about Color Modes...
There are various types of color modes through which one can work in Photoshop.
One of the most prominent color modes is the RGB color mode.
RGB refers to Red, Green, and Blue.
Combining these three colors in different ways can create a total of 16.8 million colors!
RGB mode is used when the images are created for viewing on a computer screen.
All the colors have a value of 255 each and, hence changing the value from 0 to 255 for each color produces 16.8 million colors.
If all three values are equal then a neutral gray is produced.
If the value of a color is higher than the other colors then a color created has more tones or tints of the color having the highest value.
The CYMK color scheme or mode is another much used color scheme in Photoshop.
The CYMK color scheme is generally used when an image is intended to be printed on paper.
CYMK images comprises of colors produced from the combination of four colors: Cyan, Magenta, Yellow, and Black
This scheme is based on the light absorbing quality on paper.
When you create a GIF files, you’re using the Indexed Color mode.
This is a mode in which every color that exists within an image is contained in a Color Lookup Table.
Other Color Modes include the 1-bit Bitmap (or black & white) mode, the Grayscale mode (which is 256-shades of gray, making it an 8-bit color mode), the Duotone (2-color) mode, Lab Color mode, and Multichannel mode, etc.
When using an Indexed Color mode, one may choose to use more or less colors depending on the intended need of the image.
Specific Color Tables can also be utilized: System color (both Windows and OS X), Web colors, etc.
Sometimes it is important to use these Color Modes, but often, just letting Photoshop choose the colors to be included in the Color Table works fine.
Now, go play with some colors!
Indexed Color...
Full transcript