">&quot;&quot;&quot;</span>
<span class="sd">    Tile N images into one big PxQ image</span>
<span class="sd">        (P,Q) are chosen to be as close as possible, and if N</span>
<span class="sd">        is square, then P=Q.</span>

<span class="sd">    input: img_nhwc, list or array of images, ndim=4 once turned into array</span>
<span class="sd">        n = batch index, h = height, w = width, c = channel</span>

<span class="sd">    returns:</span>
<span class="sd">        bigim_HWc, ndarray with ndim=3</