image_threshold_test

image_threshold_test, a MATLAB program which calls image_threshold() to create a black and white version of a grayscale image by specifying a single threshold value; pixels below this value become black, and above this value they are white.

Licensing:

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

Related Data and Programs:

image_threshold, matlab programs which make a black and white version of a grayscale image by setting all pixels below or above a threshold value to black or white.

Source Code:

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

CONJUNCTION is an astronomical image.

• conjunction_gray.png, the grayscale image.
• conjunction_bw_050.png, a version of the image using a threshold of 50.
• conjunction_bw_100.png, a version of the image using a threshold of 100.

STAR_FIELD is an astronomical image.

• star_field_gray.png, the grayscale image.
• star_field_bw_050.png, a version of the image using a threshold of 50.
• star_field_bw_100.png, a version of the image using a threshold of 100.
• star_field_bw_150.png, a version of the image using a threshold of 150.
• star_field_bw_200.png, a version of the image using a threshold of 200.
• star_field_bw_250.png, a version of the image using a threshold of 250.