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Online Gabor patch generator
Online Gabor patch generator September 25 2010
By Sebastiaan Mathôt   16577 reads

Tip: Gabor patches are included in OpenSesame, the open-source, graphical experiment builder.

Gabor patches are sinusoidal gratings, typically with a Gaussian envelope, which are frequently used as stimuli in psychological experiments. Using this page you can easily create and download high quality Gabor patches. As with most topics, you can find out more about Gabor patches on Wikipedia.

In order to generate multiple Gabor patches at once, you can enter multiple values separated by a comma (","). You can download generated stimuli separately or at once as a .zip file. Please note that the script may time out if you generate too many or very large stimuli.

Specify and generate

Orientation
in degrees
Size
in pixels
Envelope
Determines the shape of the patch 		Gaussian
Linear
Circular (sharp edge)
Rectangle (no envelope)
Standard deviation
in pixels (only applies to the Gaussian envelope)
Frequency
in cycles/ pixel
Phase
in cycles (0-1)
Color 1
RGB values should be in the 0-255 range 		Red: Green: Blue:
Color 2
RGB values should be in the 0-255 range 		Red: Green: Blue:
Background color
Determines the color of the background 		Average of color 1 and color 2
Same as color 2

View and download

Download all patches as a .zip file

Orientation: 45
Size: 96
Envelope: gaussian
Standard deviation: 12
Frequency: 0.1
Phase: 0
Color 1: 255, 255, 255
Color 2: 0, 0, 0
Background color: average
Download

Version 1.2 (download source and older versions)

Feel free to leave a comment! For lengthy discussions and technical questions/ remarks, please refer to the forum.