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Image Editing

Image Editing. Overview. Visual Imagery for Distance Learning Image Formats Image Resources Adobe Photoshop Elements 2.0 Exercises. Use of Images. Learning styles (visual, audio, and kinesthetic) http://coe.sdsu.edu/eet/admin/toc/index.htm Visual perception

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Image Editing

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  1. Image Editing

  2. Overview • Visual Imagery for Distance Learning • Image Formats • Image Resources • Adobe Photoshop Elements 2.0 • Exercises

  3. Use of Images • Learning styles (visual, audio, and kinesthetic) http://coe.sdsu.edu/eet/admin/toc/index.htm • Visual perception • Learners construct meaning from what they see depending on their frame of reference http://coe.sdsu.edu/eet/articles/vlitpercept/start.htm • Visual analogies • Meaningful graphics enhance memory and understanding http://coe.sdsu.edu/eet/articles/visanal/start.htm

  4. Image Formats • Image or Graphic? • Raster vs. Vector formats • Raster Image Formats – GIF, JPEG, and Bitmap • Vector Image Formats – (CorelDraw, Windows Metafiles)

  5. GIF Image Formats • Graphic Interchange Format (1987 by CompuServe) • GIF Features • Transparency • Animation

  6. 19 KB 58 KB JPEG Image Formats • Joint Photographic Experts Group • Compression factor stores the images in few bytes. • JPEGs are “lossy” (trade-off detail in the displayed picture for a smaller storage file) 20 KB

  7. Bitmap Image Formats • Bit-per-pixel level • Bitmaps are good images, but they’re not great. • Not very efficient at storing data.

  8. Image Resources • Digital Photographs • Scan Pictures • The Internet (google.com, pbase.com)

  9. Photoshop ElementOverview • Workspace • Tools • Auto-Functions (Auto Levels, • Auto Contrast, Auto Color • Correction) • Image Editing

  10. Workspace

  11. Tools

  12. Auto-Functions

  13. Image Editing • Resizing Images • Cropping Images • Transforming Images

  14. Resizing Images • File > Open > an Image • Image > Resize > Image Size • Input new Image Size • Click OK

  15. Cropping Images • File > Open > an Image • Select Crop tool • Drag the mouse over area you want to crop • Click OK

  16. Rotating Images • File > Open > an Image • Image > Rotate • Select Rotate Option • Click OK

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