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Incorporating Color Techniques

Incorporating Color Techniques. Photoshop Chapter 5. Using Color. Color can make or break and image Some draw us in an image Some repel us from an image All in the eye of the beholder Some colors that are produced in photo shop are hard to reproduce with a printer

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Incorporating Color Techniques

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  1. Incorporating Color Techniques Photoshop Chapter 5

  2. Using Color • Color can make or break and image • Some draw us in an image • Some repel us from an image • All in the eye of the beholder • Some colors that are produced in photo shop are hard to reproduce with a printer • Learn which ones work and which ones don’t

  3. 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

  4. Displaying and Printing Images • An 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

  5. Work with Color to Transform an Image • Learning about Color Models • Gamut is the range of displayed colors • If your color is out of gamut is out of the range that your printer or monitor can display

  6. Understanding the Psychology of Color • Some colors affect you in different ways • Here 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.

  7. Color Mode • Lab 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 them • HSB 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

  8. Color Mode • RGB 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 monitor • CMYK 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

  9. Understanding the Bitmap • Photoshop 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 gradationssuch 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

  10. Changing Foreground and Background • Foreground color • Black by default • Used to paint, fill and apply a border to a selection. • Background color • White by default and is used to make gradient fills and fill in areas of an image

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