Cody

Problem 930. 1D DCT-II transform.

Solution 709924

Submitted on 3 Aug 2015 by Jan Orwat
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Test Suite

Test Status Code Input and Output
1   Pass
%% test 1 x = eye(4); y = mydct(mydct(x)); y_corr = eye(4); assert( norm( y_corr(:) - y(:)) < 1e-10 );

2   Pass
%% test 2 x = 10; y = mydct(mydct(x)); y_corr = 10; assert( norm( y_corr(:) - y(:)) < 1e-10 );

3   Pass
%% test 3 x = [1 0]; y = mydct(x); y_corr = sqrt(2)/2*[1;1]; assert( norm( y_corr(:) - y(:)) < 1e-10 );