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authorJorawar Singh2017-07-07 13:00:37 +0530
committerJorawar Singh2017-07-07 13:00:37 +0530
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Raspberry Pi function changes and minor gui changes
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-<?xml version="1.0" encoding="UTF-8"?>
-
-<!--
- *
- * This help file was generated from CV_CornerHarris.sci using help_from_sci().
- *
- -->
-
-<refentry version="5.0-subset Scilab" xml:id="CV_CornerHarris" xml:lang="en"
- xmlns="http://docbook.org/ns/docbook"
- xmlns:xlink="http://www.w3.org/1999/xlink"
- xmlns:svg="http://www.w3.org/2000/svg"
- xmlns:ns3="http://www.w3.org/1999/xhtml"
- xmlns:mml="http://www.w3.org/1998/Math/MathML"
- xmlns:scilab="http://www.scilab.org"
- xmlns:db="http://docbook.org/ns/docbook">
-
- <refnamediv>
- <refname>CV_CornerHarris</refname>
- <refpurpose>Finds edges in image using Harris algorithm</refpurpose>
- </refnamediv>
-
-
-<refsynopsisdiv>
- <title>Calling Sequence</title>
- <synopsis>
- edges = CV_CornerHarris(srcimg,blocksize,ksize,k,border_type)
-
- </synopsis>
-</refsynopsisdiv>
-
-<refsection>
- <title>Parameters</title>
- <variablelist>
- <varlistentry><term>srcimg:</term>
- <listitem><para> Input single-channel 8-bit or floating-point image.</para></listitem></varlistentry>
- <varlistentry><term>blockSize:</term>
- <listitem><para> Neighborhood size</para></listitem></varlistentry>
- <varlistentry><term>ksize:</term>
- <listitem><para> Aperture parameter for the Sobel() operator.</para></listitem></varlistentry>
- <varlistentry><term>k:</term>
- <listitem><para> Harris detector free parameter.</para></listitem></varlistentry>
- <varlistentry><term>border_type:</term>
- <listitem><para> border mode used to extrapolate pixels outside of the image.</para></listitem></varlistentry>
- </variablelist>
-</refsection>
-
-<refsection>
- <title>Description</title>
- <para>
-The function runs the Harris edge detector on the image. For each pixel (x, y) it calculates a 2 * 2 gradient covariance matrix M(x,y) over a blockSize * blockSize neighborhood. Then, it computes the following characteristic: dst(x,y) = det(M(x,y)) - k .tr(M(x,y))^2. Corners in the image can be found as the local maxima of this response map.
- </para>
- <para>
-border_type can be :
-<itemizedlist>
-<listitem>BORDER_REPLICATE: aaaaaa|abcdefgh|hhhhhhh</listitem>
-<listitem>BORDER_REFLECT: fedcba|abcdefgh|hgfedcb</listitem>
-<listitem>BORDER_REFLECT_101: gfedcb|abcdefgh|gfedcba</listitem>
-<listitem>BORDER_WRAP: cdefgh|abcdefgh|abcdefg</listitem>
-<listitem>BORDER_CONSTANT: iiiiii|abcdefgh|iiiiiii</listitem>
-</itemizedlist>
- </para>
- <para>
-This is curretly dummy function. It provides no functionality but is required
-for providing support for generating C code for OpenCV
- </para>
- <para>
-</para>
-</refsection>
-
-<refsection>
- <title>Examples</title>
- <programlisting role="example"><![CDATA[
-img = CV_LoadImage('~/test.jpg',0)
-dst = CV_CvtColor(img,"CV_RGB2GRAY");
-edge = CV_CornerHarris(dst,5,3,1,"BORDER_REPLICATE");
- ]]></programlisting>
-</refsection>
-
-<refsection>
- <title>See also</title>
- <simplelist type="inline">
- <member><link linkend="CV_LoadImage">CV_CvtColor</link></member>
- </simplelist>
-</refsection>
-
-<refsection>
- <title>Authors</title>
- <simplelist type="vert">
- <member>Siddhesh Wani</member>
- </simplelist>
-</refsection>
-</refentry>