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Diffstat (limited to 'help/en_US/idct2.xml')
| -rw-r--r-- | help/en_US/idct2.xml | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/help/en_US/idct2.xml b/help/en_US/idct2.xml index 0e7fcdc..ae4d2e8 100644 --- a/help/en_US/idct2.xml +++ b/help/en_US/idct2.xml @@ -17,7 +17,42 @@ <refnamediv> <refname>idct2</refname> - <refpurpose>funcprot(0);</refpurpose> + <refpurpose>This function computes the inverse 2-D discrete cosine transform of input matrix.</refpurpose> </refnamediv> + +<refsynopsisdiv> + <title>Calling Sequence</title> + <synopsis> + Y = idct2(X) + Y = idct2(X, M, N) + Y = idct2(X, [M, N]) + </synopsis> +</refsynopsisdiv> + +<refsection> + <title>Parameters</title> + <variablelist> + <varlistentry><term>X:</term> + <listitem><para> Matrix or integer</para></listitem></varlistentry> + <varlistentry><term>M, N:</term> + <listitem><para> If specified Matrix X is padded with M rows and N columns.</para></listitem></varlistentry> + </variablelist> +</refsection> + +<refsection> + <title>Description</title> + <para> +This function computes the inverse 2-D discrete cosine transform of matrix X. If M and N are specified, the input is either padded or truncated to have M rows and N columns. +</para> +</refsection> + +<refsection> + <title>Examples</title> + <programlisting role="example"><![CDATA[ +idct2(3, 4, 6) +ans = +2.811261 0.612372 -0.525856 0.250601 0.612372 -0.086516 + ]]></programlisting> +</refsection> </refentry> |