Monday, July 20, 2009

Images in Blackboard and Elive

When selecting images to load into Elive or onto Blackboard, be aware of:

  • The size of the file. It should be less than 300 KB, ideally less than 150 KB (these are not hard and fast rules; just recommendations)
  • The size of the image. Keep each side in between 150 and 400 pixels.
  • Banners for Blackboard are 100-150 pixels by 600-800 pixels. 150 x 600 is a nice banner size.
  • Instructor picture for instructor bio is 150 x 150 pixels.

Where to find images:

In Mac OS or in Vista, you can look at the file size and the pixel size of an image in properties. In XP, hover the mouse over the image. The info box that pops up gives the size in pixels

Resize images on the web:

  • piknic.com
  • Picasa probably does this too.

Resize image on a Mac:

  • Iphoto
  • Preview > tools > Adjust size

Resize image on Windows:

  • paint.net
  • photoresize
  • fancy programs like Fireworks or Photoshop

Video on adding images to a Blackboard Item