Drawing from the Sea - Photoshop

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Revision as of 07:00, 15 May 2013 by Greenea (Talk | contribs) (Best practices)

Project overview

  • Adobe Photoshop and inDesign and how we will be using them for these projects
  • Difference between digital images and print images - primarily is resolution or overal # of pixels

Best practices

  • Start Big: larger image files (both in file size and in overal number of pixels) provide you with higher quality images. You can always scale the image down but you can't scale it up.
  • Keep your original: These images are typically your highest quality image and you may need to go back to them from time to time.
  • File naming is important: Come up with a naming convention that helps you quickly identify the image without having to open it up. Names should include descriptive info, version, size or intended use.
    • Example: Rainier_sunrise_1200_BW.psd - this file name tells me about the subject of the photo, the image size typically its width and any processing I've done, this one is a black and white version, it's file format is Photoshop.

Scanning

Using the Epson scanners in the Computer Center. See: Scanning - Mac

  1. Scan one drawing from a station connected to a scanner
  2. Save as TIFF to your cubby on Orca. See: Connecting to Orca programs at File Space Overview
  3. Go back to your station and copy your scanned image to your local harddrive

Intro to Photoshop

Photoshop interface and navigating an image

  1. File > Open your scanned document in Photoshop
  2. Keyboard shortcuts for navigating your image
    • Zoom in/out: Cmd +/-
    • Hand tool: Space Bar
  3. Image > image Size to see the overall size and resolution of your image
    • for print, image resolution should be at least 300 dpi
  4. File > Save as choose Photoshop as the file format. Note the .psd extension.

Editing your image

  • If needed, rotate your image Image > Image Rotation
  • Crop and set the horizontal/vertical alignment for your image using the crop/align tool (we will be able to crop our images later in indesign as well)
    • Note what happens if you choose Not to "delete cropped pixels"
    • this relates directly to you Canvas size found in Image > Canvas Size


Image Adjustments

  1. Image mode
    • All images must be in RGB mode. Go Image > Image mode and set the mode to RGB if it is not already
  2. Image adjustments
    • Adjusting Levels can work to clean-up scanned drawings or bring added depth the dull snapshots
    • Adjustment layers are a more flexible option

Image Touch up

  1. Working with Layers
  2. Making selection
  3. Techniques for correction
    • Paint tool
    • Eraser
    • Healing Tools

Saving your work

  1. File > Save as choose Photoshop as the file format. Note the .psd extension.
  2. File > Print to print small versions of your images - we'll use these the next workshop

Additional Resources

Digital Image Basics from UT Austin