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<p>Hi all,</p>
<p>I want to read a palette image as a scalar image with its indexes
+ a vector of RGB, corresponding to the image palette. The format
of the image is TIFF, but can be png or gif as well.</p>
<p> When I'm reading such palette image, the <code>itk::ImageIOBase</code>,
as implemented <a
href="https://itk.org/ITKExamples/src/IO/ImageBase/ReadUnknownImageType/Documentation.html"
rel="nofollow noreferrer">here</a>, tels me that the image has a
RGB pixel type. <br>
</p>
<pre class="lang-cpp prettyprint prettyprinted" style=""><code><span class="pln">itk</span><span class="pun">::</span><span class="typ">ImageIOBase</span><span class="pun">::</span><span class="typ">Pointer</span><span class="pln"> imageIO </span><span class="pun">=</span><span class="pln">
itk</span><span class="pun">::</span><span class="typ">ImageIOFactory</span><span class="pun">::</span><span class="typ">CreateImageIO</span><span class="pun">(</span><span class="pln">
fileName</span><span class="pun">,</span><span class="pln"> itk</span><span class="pun">::</span><span class="typ">ImageIOFactory</span><span class="pun">::</span><span class="typ">ReadMode</span><span class="pun">);</span></code></pre>
<p>Is it possible to know, <strong>through ITK</strong>, whether
the image is actually a palette image, <em>i.e.</em> scalar image
along with a color palette, and read this image as a scalar image
+ palette ? I need have access to the index, as stored in the file
as well as the color palette used in the file.</p>
<p>For now, my only solution is to use freeImagePlus to identify and
read this type of image. I haven't found any function in the class
<code>ImageIOBase</code> that could relate to that.</p>
<p>Any help would be appreciated, thanks a lot !
<br>
<br>
Yann</p>
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