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<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<!DOCTYPE MAN SYSTEM "mansivp.dtd">
<MAN>
<LANGUAGE>eng</LANGUAGE>
<TITLE>mat2gray</TITLE>
<TYPE>SIVP Toolbox</TYPE>
<DATE>April, 2006</DATE>
<SHORT_DESCRIPTION name="mat2gray">Convert matrix to grayscale image</SHORT_DESCRIPTION>
<CALLING_SEQUENCE>
<CALLING_SEQUENCE_ITEM>G = mat2gray(M)</CALLING_SEQUENCE_ITEM>
<CALLING_SEQUENCE_ITEM>G = mat2gray(M, [mmin, mmax])</CALLING_SEQUENCE_ITEM>
</CALLING_SEQUENCE>
<PARAM>
<PARAM_INDENT>
<PARAM_ITEM>
<PARAM_NAME>M</PARAM_NAME>
<PARAM_DESCRIPTION>
An matrix/image.
</PARAM_DESCRIPTION>
</PARAM_ITEM>
<PARAM_ITEM>
<PARAM_NAME>[mmin, mmax]</PARAM_NAME>
<PARAM_DESCRIPTION>
<TT>[mmin, mmax]</TT> is the values in <TT>M</TT> that correspond to <TT>0.0</TT> and <TT>1.0</TT> in <TT>G</TT>. The elements in <TT>M</TT> which is lower than <TT>mmin</TT> will be converted to <TT>0.0</TT>, and greater than <TT>mmax</TT> will be converted to <TT>1.0</TT>.
</PARAM_DESCRIPTION>
</PARAM_ITEM>
<PARAM_ITEM>
<PARAM_NAME>G</PARAM_NAME>
<PARAM_DESCRIPTION>
A double precision matrix/image which data value in the range [0,1].
</PARAM_DESCRIPTION>
</PARAM_ITEM>
</PARAM_INDENT>
</PARAM>
<DESCRIPTION>
<P>
<TT>mat2gray(M,[mmin, mmax])</TT> converts the matrix <TT>M</TT> to the double precision image.
The output matrix contains values in the range <TT>[0.0, 1.0]</TT>.
<TT>mmin</TT> and <TT>mmax</TT> are the values in <TT>M</TT> that correspond to 0.0 and 1.0 in the output image.
</P>
<P>
When <TT>[mmin, mmax]</TT> is not specified, <TT>minimum</TT> and <TT>maximum</TT> of <TT>M</TT> are the values in <TT>M</TT> that correspond to 0.0 and 1.0 in the output image.
</P>
</DESCRIPTION>
<EXAMPLE><![CDATA[
M = [0:10;0:10];
I = mat2gray(im);
]]></EXAMPLE>
<!-- ================================= -->
<AUTHORS>
<AUTHORS_ITEM name="Shiqi"> Shiqi Yu <shiqi.yu[at]gmail.com> </AUTHORS_ITEM>
</AUTHORS>
<!-- ================================= -->
<SECTION label="Availability">
The latest version of SIVP can be found at
<P><A href="http://sivp.sourceforge.net">http://sivp.sourceforge.net</A></P>
</SECTION>
<!-- ================================= -->
<SEE_ALSO>
<SEE_ALSO_ITEM> <LINK>rgb2gray</LINK> </SEE_ALSO_ITEM>
<SEE_ALSO_ITEM> <LINK>im2bw</LINK> </SEE_ALSO_ITEM>
<SEE_ALSO_ITEM> <LINK>im2uint8</LINK> </SEE_ALSO_ITEM>
<SEE_ALSO_ITEM> <LINK>im2int8</LINK> </SEE_ALSO_ITEM>
<SEE_ALSO_ITEM> <LINK>im2uint16</LINK> </SEE_ALSO_ITEM>
<SEE_ALSO_ITEM> <LINK>im2int16</LINK> </SEE_ALSO_ITEM>
<SEE_ALSO_ITEM> <LINK>im2int32</LINK> </SEE_ALSO_ITEM>
<SEE_ALSO_ITEM> <LINK>im2double</LINK> </SEE_ALSO_ITEM>
</SEE_ALSO>
</MAN>
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