High-Resolution Contrast Control on a Video Display: Method and Calibration

Abstract

In visual psychophysics it is sometimes necessary to be able to display Luminances with 12 bit precision. This report describes a method where two 8 bit color outputs of a DeAnza IP8400 image processor are combined into a monochrome signal with an effective resolution of 12 bits. The implementation in hardware and software, and the calibration of the system are described. Measurements show that the system meets the desired specifications. Contrast, Resolution, Monitor Calibration.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1992
Accession Number
ADA256552

Entities

People

  • A. J. De Reus
  • J. M. Valeton

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Calibration
  • Computer Programs
  • Computers
  • Contrast
  • Control Systems
  • Display Systems
  • High Resolution
  • Host Computers
  • Measurement
  • Perception
  • Procedures (Computers)
  • Specifications
  • Standards
  • Video

Fields of Study

  • Physics

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.