1. What color mode is used most for the 4-color print process (professional printing, not desk-top printing)?
Before doing professional printer, an image should be converted to CMYK mode.
2. True or False: Television sets, computer monitors and movie projectors use the CMYK Color Mode to display colors. Why or why not?
False. Because television screens and computer monitors are directing light toward the viewer, they use the additive RGB color mode.
3. What does RGB and CMYK stand for?
RGB: Red-Green_Blue
CMYK: Cyan-Magenta-Yellow-Black
4. Describe two ways to access the Color Picker.
1. Click on the Set Foreground Color (or Set Background Color) tool on the toolbox.
2. Click on the Set Foreground Color (or Set Background Color) tool on the Color
palette. Note one may have to click twice, the first to select the foreground
(if the background had been selected) and the second to bring up the Color Picker
dialog box.
5. If you needed to work with an exact shade of a color and had only the RGB values, where would you input these values to obtain that color?
The Color Picker dialog box has various ways to enter a color including textboxes where one can enter the three RGB values (numbers between 0 and 255).
6. If you see the Alert Triangle in the Color Picker, what does this tell you and how would you take care of this?
The caution triangle is to alert the user that the color is "out of gamut" -- that the color (typically a bright one) cannot be printed using the colors available in standard printing. One can click on the caution sign or on the colored square directly beneath it to have the system automatically select a nearby color that is "in gamut."
7. How would you find out a color's Hexadecimal code for use on a web page?
If one selects a color through any of the various ways the Color Picker allows, the values corresponding to that color (or a near neighbor of it) are presented in all of the fields on the dialog box including one that displays the hexadecimal codes. One can also use the Color palette's context menu and choose the Copy Color as HTML option, then paste the code elsewhere yielding a result such as: color="#ffcf00".
If one had a logo image file and one wanted to match the colors on a webpage, then one can open the logo file in Photoshop and use the Eyedropper Tool to sample the color. To view the hexedecimal code rather than calculating it oneself, click on the color that resulted for the eyedropper selection on the Color Palette and view the hexadecimal code near the bottom of the Color Picker dialog box.
8. List three ways to change the Foreground and/or Background colors.
1. Click on the Foreground tool (or Background tool) on the toolbox and use the
Color Picker dialog box.
2. Click on the Foreground icon (or Background icon) on the Color palette, then
use the sliders and/or textboxes to enter the desired values.
3. Click on a color's icon on the Swatch palette to make it the Foreground color.
Use Ctrl+click to make it the Background color.
9. Other than using the Zoom tool, what's another way to change the magnification of an image?
The Navigator palette, usually found on the irght-hand side of Photoshop, has magnification controls. There is a textbox with a percentage that the user can enter a new number to change the magnification. There is also a slider for zooming in and out. Finally there are zoom in and zoom out buttons on either side of the slider.
10. Other than the Color Picker, where else could you easily find the particular RGB or CMYK values of any pixel within the canvas?
The color information (RGB and CMYK values) can be found on the Info palette which is often found on the right-hand side of Photoshop. Click on any number of tools and move the cursor around the Image Window. The color information for the pixel located under the cursor will be shown on the Info palette.