nbsp;&nbsp;&nbsp;data.X&nbsp;[dim&nbsp;x&nbsp;num_images]&nbsp;images&nbsp;stored&nbsp;as&nbsp;columns</span><br>
<span class=help>%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of&nbsp;size&nbsp;dim&nbsp;=&nbsp;width*height.</span><br>
<span class=help>%&nbsp;&nbsp;&nbsp;&nbsp;data.img_size&nbsp;=&nbsp;[height,width].</span><br>
<span class=help>%&nbsp;&nbsp;</span><br>
<span class=help>%&nbsp;&nbsp;<span class=help_field>Example:</span></span><br>
<span class=help>%&nbsp;&nbsp;&nbsp;open&nbsp;ocr_demo.fig</sp