INCORPORATI

NG

COLOR TE

CHNIQUES

PHOTOSHOP CHAPTER 5

USING COLORColor can make or break and imageSome draw us in an imageSome repel us from an image All in the eye of the beholderSome colors that are produced in photo

shop are hard to reproduce with a printerLearn which ones work and which ones

don’t

UNDERSTANDING COLOR MODES AND COLOR MODELS

A color mode is the amount of color data that can be stored in a given file format, based on an established model.

A color model determines how pigments combine to produce resulting colors.

This is how you computer or printer associates a name or number with colors.

The color mode determines the number and range of colors displayed, as well as the color model will be used.

The color model interprets the color mode information by a monitor or a printer

DISPLAYING AND PRINTING IMAGESAn image displayed on your monitor is a bitmap A geometric arrangement of different color dots on a

rectangular grid. Each dot is called a pixel- represents a color or shade.Bitmapped images are resolution dependent and

can lose detail – often by a jagged appearance – when magnified

Images with higher resolutions tend to show more detail and subtler color transitions that lower resolution images

WORK WITH COLOR TO TRANSFORM AN IMAGE

Learning about Color ModelsGamut is the range of displayed colorsIf your color is out of gamut is out of the range that your printer or monitor can display

UNDERSTANDING THE PSYCHOLOGY OF COLORSome colors affect you in different

waysHere are some common responses

for colors: Blue tends to instill a feeling of safety

and stability and is often used by financial services.

Certain shades of green can generate a soft, calming feeling, while other suggest youthfulness and growth

Red commands attention and can be used as a call to action. It can also distract a readers attention from other content

White evokes the feeling of purity and innocence, looks cool and fresh, and is often used to suggest luxury

Black conveys feelings of power and strength, but can also suggest darkness and negativity.

COLOR MODELab Color Model Based on one luminance (lightness) components and two chromatic

components (green to red, and from blue to yellow) Advantages: largest number of colors available and greatest precision with

which to create themHSB Color Model Hue, Saturation, Brightness The color reflected from or transmitted through and object is called hue-

expressed in degree 0-360 Each Hue is identified by color names Saturation is the strength or purity of the color- representing the amount of

gray in proportion to the hue Measured in percentage 0% black and 100% (white)

Brightness is the measurement of relative lightness or darkness of a color and is measured as percentage Measured in percentage 0% black and 100% (white)

Doesn’t offer in Photoshop

COLOR MODERGB Model Red, Green, Blue- additive colors Additive colors are used for lighting, video, and computer monitors.

Color is created by adding together red, green and blue light When red, green and blue are combined at their highest value (255) the

result is white and the absence of color the result is black Colors may be different from monitor to monitorCMYK Model Cyan, Magenta, Yellow, and Black Colors being partially absorbed as the ink hits the paper CMYK colors are subtractive colors the absence of these and black

create white You cannot see the exact colors until you print

UNDERSTANDING THE BITMAPPhotoshop provides two specialized color modes Bitmap

Uses black and white color values to represent image pixels and is a good choice for images with subtle color gradations such as photos or painted images

Grayscale Uses up to 256 shades of gray assigning a brightness

value from 0 black to 255 white to each pixel. Duotone mode:

Used to create grayscale images

CHANGING FOREGROUND AND BACKGROUND

Foreground colorBlack by defaultUsed to paint, fill and apply a border to a selection.

Background colorWhite by default and is used to make gradient fills and fill in areas of an image