pIteratorConcept</span></code>
over pixels as a template parameter. (When instantiated with a model of
<code class="docutils literal"><span class="pre">MutableStepIteratorConcept</span></code>, it models <code class="docutils literal"><span class="pre">MutablePixelLocatorConcept</span></code>).</p>
<div class="highlight-cpp"><div class="highlight"><pre><span class="c1">// StepIterator models StepIteratorConcept, MemoryBasedIteratorConcept</span>
<span class="k">template</span> <span class="o">&lt;</span><sp