image_decimate_test

image_decimate_test, an Octave code which calls image_decimate(), which decimates an image by removing the even rows and columns, resulting in a file that is about 1/4 the size of the original.

Licensing:

The information on this web page is distributed under the MIT license.

Related Data and Programs:

image_decimate, an Octave code which compresses an image by dropping the even rows and columns of data.

Source Code:

• image_decimate_test.m, calls all the tests.
• image_decimate_test.sh, runs all the tests.
• image_decimate_test.txt, the output file.

• image_decimate_gray_test.m, tests image_decimate_gray().

casablanca is a grayscale image from a movie.

• casablanca.pgm, the original image.
• casablanca.png, the original image.
• casablanca2.pgm, the image after 1 decimation.
• casablanca2.png, the image after 1 decimation.
• casablanca4.pgm, - the image after 2 decimations.
• casablanca4.png, the image after 2 decimations.
• casablanca8.pgm, the image after 3 decimations.
• casablanca8.png, the image after 3 decimations.
• casablanca16.pgm, the image after 4 decimations.
• casablanca16.png, the image after 4 decimations.
• casablanca32.pgm, the image after 5 decimations.
• casablanca32.png, the image after 5 decimations.