Photoshop
Colour and Tonal Adjustments
Review Questions
- What are the advantages of using adjustment layers?
- How can you create an adjustment layer that only affects a portion of a layer?
- How do you create an adjustment layer that only affects a single layer?
- Once you've created an adjustment layer, can you change it to another type of adjustment layer without deleting it first? For example, change it from Levels to Curves.
- What is the purpose of a Histogram?
- What term describes an image that contains mainly light tonal values?
- What does correcting an image's tonal values involve, generally speaking?
- Describe three ways to adjust tonal values using the Levels dialog. Which method will not result in colour shifts?
- What do Output Levels affect?
- Why is a Curves adjustment more flexible than the Levels adjustment?
- What are complementary colours?
- Describe how complementary colours are used to correct colours in an image.
- Describe how a colour sampler is displayed in the Info panel when a colour adjustment dialog is open.
- What is key to successfully using colour samplers to correct colour values?
- When using the Colour Balance dialog, should the Preserve Luminosity option be enabled or disabled? Why?
- Does the Desaturate command convert an image to Greyscale colour mode?
- Which colour adjustment method targets pixels in a specific colour range and adjusts their colour using the CMYK colour model?
Bonus Questions
- How do the results of Auto Levels and Auto Contrast adjustments differ?
- What shortcut can you use to auto-place curve points in the Curves dialog?
Review Answers
To help you determine if you are on the right track, the answers to the Review and Bonus questions have been provided. Do all the work on the questions page before you take a look at the answers.
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