test_macroidct2.m

来自「用matlab写的仿真H.263标准的程序」· M 代码 · 共 32 行

%二维余弦变换测试

%测试1，输入16x16全零数组
TestMatrixZeros = zeros(16,16);

Result = MacroIDct2(TestMatrixZeros);

TestEqual(Result,zeros(16,16));

%测试2，输入16x16全1数组
TestMatrixOnes=ones(16,16);

Result = MacroIDct2(TestMatrixOnes);

block_one_coeff = idct2(ones(8,8));
BenckMark_One = [block_one_coeff,block_one_coeff;block_one_coeff,block_one_coeff];
TestEqual(Result,BenckMark_One);
% 
% %测试3，输入16x16随机数组

TestMatrixRand=rand(16,16);

Result = MacroIDct2(TestMatrixRand);

block_one_coeff_0 = idct2(TestMatrixRand(1:8,1:8));
block_one_coeff_1 = idct2(TestMatrixRand(1:8,9:16));
block_one_coeff_2 = idct2(TestMatrixRand(9:16,1:8));
block_one_coeff_3 = idct2(TestMatrixRand(9:16,9:16));


BenckMark_One = [block_one_coeff_0,block_one_coeff_1;block_one_coeff_2,block_one_coeff_3];
TestEqual(Result,BenckMark_One);