image_quantization_test

image_quantization_test, a MATLAB code which calls image_quantization(), which demonstrates how the KMEANS algorithm can be used to reduce the number of colors or shades of gray in an image.

Licensing:

The computer code and data files described and made available on this web page are distributed under the MIT license

Related Data and Programs:

image_quantization, a MATLAB code which demonstrates how the KMEANS algorithm can be used to reduce the number of colors or shades of gray in an image.

Source Code:

• image_quantization_test.m, calls all the tests.
• image_quantization_test.sh, runs all the tests.
• image_quantization_test.txt, the output from the tests.

• image_quantization_test01.m, tests grayscale_quantization on an image.

BEATLES is a snapshot of Paul, Ringo, George and John.

• beatles.png, a grayscale PNG image, using 256 shades.
• beatles_histogram.png, a histogram of the grayscale shades.
• beatles_16.png, the image using only 16 shades.
• beatles_4.png, the image using only 4 shades.
• beatles_2.png, the image using only 2 shades.

CASABLANCA is a still from the movie "Casablanca".

• casablanca.png, a grayscale PNG image, using 256 shades.
• casablanca_histogram.png, a histogram of the grayscale shades.
• casablanca_16.png, the image using only 16 shades.
• casablanca_4.png, the image using only 4 shades.
• casablanca_2.png, the image using only 2 shades.

SNAP is a snapshot of a mother and daughter.

• snap.png, a grayscale PNG image, using 208 shades.
• snap_histogram.png, a histogram of the grayscale shades.
• snap_16.png, the image using only 16 shades.
• snap_4.png, the image using only 4 shades.
• snap_2.png, the image using only 2 shades.