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Brightness constancy

The experience of PERCEIVING an object as maintaining the same level of brightness even though the OBJECTIVE illumination seen by the eye may change.

Small & Medium Business

  • Trial packs for small jobs
  • Pay as you go
  • Tailored to unique roles
  • Feedback on test results
  • No set up fees

Large Businesses

  • Volume discounts
  • Real-time results
  • 7 Day Support
  • Candidate ranking
  • Easily scalable
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