Digital Imaging for Print Media Lecture 7: Understanding Channels
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Digital Imaging for Print Media Lecture 7: Understanding Channels

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Questions and Answers

What is the composition of every image that you see on screen according to the text?

  • Red, yellow, and blue
  • Red, purple, and green
  • Red, green, and blue (correct)
  • Red, green, and yellow

    • Where can you access the channels tab according to the text?

  • In the layers tab
  • In the file menu
  • In the view menu
  • In the window menu (correct)

    • What is the first option visible when the channel’s tab opens according to the text?

  • Cyan, magenta, and yellow channel
  • Red, blue, and green channel
  • Black & white channel
  • RGB channel (correct)

    • Why do the red, blue, and green channels appear black & white according to the text?

    <p>Because they are only a representation of those channels</p> Signup and view all the answers

    How can you change the visibility of layers from black & white according to the text?

    <p>By going to Edit menu and then selecting ‘preferences’</p> Signup and view all the answers

    What is the purpose of checking the 'Show Channels in Color' option in Photoshop preferences?

    <p>To visualize the areas with the most and least applied color in each channel</p> Signup and view all the answers

    Which channel can be used as a mask to select the skies in an image?

    <p>Blue channel</p> Signup and view all the answers

    What is one of the most important concepts to become familiar with when working with pictures from a digital camera?

    <p>Understanding image histograms</p> Signup and view all the answers

    What does each pixel in an image have that has been produced by some combination of?

    <p>Primary colors red, green, and blue (RGB)</p> Signup and view all the answers

    What does an RGB histogram result from when the computer scans through each of these RGB brightness values?

    <p>Counting how many pixels are at each brightness level from 0 through 255</p> Signup and view all the answers

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