Comparing Images in a Collaborative Setting
- The problem: how can scientists around the world compare similar
image data?
- A. Quantitative numeric comparison
- Could build computer database from images
using special local software
- Difficult if gel image data is not available locally
- Time consuming if only want to compare one data point
- Good for long term multiple-image databases
- Special software may be expensive, inconvenient
to acquire, install or use
- B. Qualitative visual comparison
- Could visually compare images - slide one image
transparency over another
- Finds qualitative differences which may be
adequate for some problems
- May be difficult to match objects
if images have quite different morphologies
- Need to have copies of both images to do comparison
- Apples & oranges: Neither method overcomes major
differences in sample
preparation and image formation methods
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