Art New Media Science - Photoshop

From Help Wiki

Workshop Date: October 26th 10-11:30am and 11:30 - 1pm

Workshop overview

introduction to working with Photoshop to explore basic functionality and concepts behind the software.

Key topics

  • Media management and file hygiene
  • how Photoshop works as a graphical interface managing data
    • open same image file in photoshop, text editor, metasynth (listen to image data), audacity. Databend original image file using audacity.
  • ways that Photoshop can help you with basic design principles
    • Composition : rulers, guides and cropping
    • Color: Histograms (and channels), level adjustments, color modes

Photoshop interface and navigating an image

  1. Opening a file File > Open and navigate to your file. Never open a file over the network (if your file is on Orca, first copy it to your local hard drive).
  2. Intro to basics Photoshop interface elements
  3. navigating an image
    • Zoom: Cmd +/-
    • Hand tool: Space Bar (used to move around an image)

Image size and resolution

  1. What is a pixel? Zoom all the way in on your image.
  2. What are the dimensions of your image?
    • Go to Image > image Size to see the overall size in pixels of your image
    • Resizing photos for various usages including: Web, email attachment, and print
  3. What is the resolution of your image? Why does it matter?
  4. Cropping - using the crop tool to remove portions of the image outside of the crop selection
    • You can set the image size to crop to in the properties bar i.e. 400 px (remember the px)

Image adjustments

located under Image > Adjustments

  • Levels - set your black point
  • Convert an image to black & white

Saving your work

File > Save as. Choose Photoshop as the file format. This will create a uncompressed Photoshop native image file format. It's a good idea to keep an uncompressed copy of your images.

Working with Layers

  • What are layers in Photoshop?
  • Create new layers
  • Hiding and linking layers
  • Copying between layers
  • Duplicating layers
  • Adjustment layers
  • Clipping layers
  • Layer masks

Working with selections

  • intro to selection tools: marquee, lasso, magic wand etc.
  • adjusting selections
  • copying selections to another layer

Exercise: create a composite image using multiple pinhole camera images

Saving for web

  1. Saving for web: File > Save for Web & Devices
    • Choose the highest quality with the best (smallest) file size.