lass="sig-paren">)</span><a class="headerlink" href="#pySurf.data2D.calculate_slope_2D" title="Link to this definition">¶</a></dt>
<dd><p>calculate slope maps in x and y.
return slope in x and y respectively.
Set scale to (dx,dy,1000.) for z in micron, x,y in mm.</p>
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="pySurf.data2D.compare_2images">
<span class="sig-prename descclassname"><span class="pre">pySurf.data2D.</span></span><span class="sig-name descname"><span class="pre">comp