PHP Classes

Color extract: Extracts the most common colors used in images

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colorextract 1.0.0BSD LicenseGraphics


This class can be used to extract the most common colors used in images.

It can open an image file in the GIF, JPEG or PNG format. Then it traverses the image and returns an array with the most used color tones.

Innovation Award
PHP Programming Innovation award nominee
September 2006
Number 10
An image may be made of dots of many colors. Finding which colors are most frequently used in an image, is relatively easy. It is a matter of building an histogram.

However, if you want to find which are the dominant tones, that is much harder, as the most frequently used colors may not be exactly the dominant tones.

This class provides a solution for finding the topmost dominant tones used in an image, using only PHP code without any special PHP extensions, except for the GD library functions.

That may be useful to use background colors on a page that match the dominant tones used in images presented in that page.

Manuel Lemos
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Name: Csongor Zalatnai <contact>
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  Files folder image Files  
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Plain text file Class The main class
Accessible without login Plain text file example.php Example Example script
Accessible without login Image file test.jpg Photo Test image no. 1
Accessible without login Image file test2.jpg Photo Test image no. 2

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great wooork
13 years ago (Saroj Kumar)
Does exactly what it says.
13 years ago (Gilbert Bates)
Worked right out of the box.
14 years ago (Cameron Rout)