The VideoToolbox software for visual psychophysics: transforming numbers into movies

Spat Vis. 1997;10(4):437-42.


The VideoToolbox is a free collection of two hundred C subroutines for Macintosh computers that calibrates and controls the computer-display interface to create accurately specified visual stimuli. High-level platform-independent languages like MATLAB are best for creating the numbers that describe the desired images. Low-level, computer-specific VideoToolbox routines control the hardware that transforms those numbers into a movie. Transcending the particular computer and language, we discuss the nature of the computer-display interface, and how to calibrate and control it.

MeSH terms

  • Calibration
  • Computer Terminals*
  • Data Display*
  • Humans
  • Microcomputers
  • Motion Perception*
  • Pattern Recognition, Visual*
  • Psychophysics*
  • Software Design
  • Software*
  • User-Computer Interface