The VideoToolbox software for visual psychophysics: transforming numbers into movies
Программное обеспечение VideoToolbox для зрительной психофизики: преобразование чисел в фильмы
1997-01-01
SCID: 54.1/73jfjdeu
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VideoToolboxcomputer-display interfacedisplay calibrationvisual psychophysicsvisual stimulus generation
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Abstract (AI)
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.
Key Findings
1
MATLAB and other high-level, platform-independent languages generate image specifications, while VideoToolbox handles low-level, hardware-specific display control.
2
The paper explains the computer–display interface and methods for calibrating and controlling it across different computational environments.
3
The software enables accurately specified visual stimuli by converting numerically described images into controlled visual movies.
4
VideoToolbox provides approximately 200 free C subroutines for Macintosh computers to calibrate and control the computer–display interface.
Research Object
the VideoToolbox-controlled computer-display interface for creating visual stimuli
Research Subject
calibration and hardware control for accurately transforming numerical image specifications into movies
Publication Details
Publication Date
1997-01-01
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