<div dir="ltr">It should be some thing like this<br><br><span style="color:#c0c0c0"> </span><span style="color:#008000">//</span><span style="color:#c0c0c0"> </span><span style="color:#008000">Create</span><span style="color:#c0c0c0"> </span><span style="color:#008000">a</span><span style="color:#c0c0c0"> </span><span style="color:#008000">greyscale</span><span style="color:#c0c0c0"> </span><span style="color:#008000">lookup</span><span style="color:#c0c0c0"> </span><span style="color:#008000">table</span>
<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">        </span>vtkSmartPointer<span style="color:#000000">&lt;</span>vtkLookupTable<span style="color:#000000">&gt;</span><span style="color:#c0c0c0"> </span>table<span style="color:#c0c0c0"> </span><span style="color:#000000">=</span></pre>

<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">          </span>vtkSmartPointer<span style="color:#000000">&lt;</span>vtkLookupTable<span style="color:#000000">&gt;::</span>New<span style="color:#000000">();</span></pre>

<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">        </span>table<span style="color:#000000">-&gt;</span>SetRange<span style="color:#000000">(</span>windowLow<span style="color:#000000">,</span>windowUp<span style="color:#000000">);</span><span style="color:#c0c0c0"> </span><span style="color:#008000">//</span><span style="color:#c0c0c0"> </span><span style="color:#008000">image</span><span style="color:#c0c0c0"> </span><span style="color:#008000">intensity</span><span style="color:#c0c0c0"> </span><span style="color:#008000">range</span></pre>

<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">        </span>table<span style="color:#000000">-&gt;</span>SetValueRange<span style="color:#000000">(</span><span style="color:#000080">0.0</span><span style="color:#000000">,</span><span style="color:#c0c0c0"> </span><span style="color:#000080">1.0</span><span style="color:#000000">);</span><span style="color:#c0c0c0"> </span><span style="color:#008000">//</span><span style="color:#c0c0c0"> </span><span style="color:#008000">from</span><span style="color:#c0c0c0"> </span><span style="color:#008000">black</span><span style="color:#c0c0c0"> </span><span style="color:#008000">to</span><span style="color:#c0c0c0"> </span><span style="color:#008000">white</span></pre>

<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">        </span>table<span style="color:#000000">-&gt;</span>SetSaturationRange<span style="color:#000000">(</span><span style="color:#000080">0.0</span><span style="color:#000000">,</span><span style="color:#c0c0c0"> </span><span style="color:#000080">0.0</span><span style="color:#000000">);</span><span style="color:#c0c0c0"> </span><span style="color:#008000">//</span><span style="color:#c0c0c0"> </span><span style="color:#008000">no</span><span style="color:#c0c0c0"> </span><span style="color:#008000">color</span><span style="color:#c0c0c0"> </span><span style="color:#008000">saturation</span></pre>

<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">        </span>table<span style="color:#000000">-&gt;</span>SetRampToLinear<span style="color:#000000">();</span></pre>

<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">        </span>table<span style="color:#000000">-&gt;</span>Build<span style="color:#000000">();</span></pre>


<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">        </span><span style="color:#008000">//</span><span style="color:#c0c0c0"> </span><span style="color:#008000">Map</span><span style="color:#c0c0c0"> </span><span style="color:#008000">the</span><span style="color:#c0c0c0"> </span><span style="color:#008000">image</span><span style="color:#c0c0c0"> </span><span style="color:#008000">through</span><span style="color:#c0c0c0"> </span><span style="color:#008000">the</span><span style="color:#c0c0c0"> </span><span style="color:#008000">lookup</span><span style="color:#c0c0c0"> </span><span style="color:#008000">table</span></pre>

<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">        </span>vtkSmartPointer<span style="color:#000000">&lt;</span>vtkImageMapToColors<span style="color:#000000">&gt;</span><span style="color:#c0c0c0"> </span>color<span style="color:#c0c0c0"> </span><span style="color:#000000">=</span></pre>

<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">          </span>vtkSmartPointer<span style="color:#000000">&lt;</span>vtkImageMapToColors<span style="color:#000000">&gt;::</span>New<span style="color:#000000">();</span></pre>

<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">        </span>color<span style="color:#000000">-&gt;</span>SetLookupTable<span style="color:#000000">(</span>table<span style="color:#000000">);</span></pre>

<pre style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="color:#c0c0c0">        </span>color<span style="color:#000000">-&gt;</span>SetInputConnection<span style="color:#000000">(</span>reslice<span style="color:#000000">-&gt;</span>GetOutputPort<span style="color:#000000">());<br>
<br><br><br>Jothy<br></span></pre><br><br><div class="gmail_quote">On Mon, Feb 13, 2012 at 5:48 PM, yarram <span dir="ltr">&lt;<a href="mailto:somasekhar.vit@gmail.com">somasekhar.vit@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
@Jothy: I am new to this VTK, so could you provide me the sample code/<br>
snippet for controlling the image contrast and brightness with QT slider??<br>
Thanks in advance......<br>
<font color="#888888"><br>
--<br>
View this message in context: <a href="http://vtk.1045678.n5.nabble.com/How-to-adjust-VTK-Image-brightness-and-contrast-with-QT-Slider-tp5473398p5479994.html" target="_blank">http://vtk.1045678.n5.nabble.com/How-to-adjust-VTK-Image-brightness-and-contrast-with-QT-Slider-tp5473398p5479994.html</a><br>

</font><div><div></div><div class="h5">Sent from the VTK - Users mailing list archive at Nabble.com.<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br><div dir="ltr">Jothy<br></div><br>
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