Online Quiz exercises

The final piece of assessment for ACM202 is an online quiz that includes multiple selection questions about:

  • how to interpret histograms,
  • the impact of various curves adjustments,

and practical exercises in:

  • the adjustment of pixel dimensions,
  • assigning colourspace,
  • use of layer masks
  • and selecting pixels/hair.

Useful readings:

Evening, M 2010,  Adobe Photoshop CS5 for photographers

See Chapter 5: Image Editing Essentials for revision on Histograms and curves adjustments and Chapter 9: Layers, Selections & Masking

With regards to selecting a figure/hair from a background, you may also want to review the video tutorials by Martin Evening:

(If the links play up, you can google for these on youtube. They are published by

These are my exercises:

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I am not very happy with the first one but I think the second one looks a bit better as in more natural:

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