lBack'</span>, @<a href="#_sub16" class="code" title="subfunction update_bgsub(varargin)">update_bgsub</a>);
0624 
0625     <span class="comment">% ===threshold======================================</span>
0626     acq.threshold_ui = uicontrol(gcf,<span class="string">'Style'</span>,<span class="string">'edit'</span>,<span class="keyword">...</span>
0627         <span class="string">'String'</span>, sprintf( <span class="string">'%.2f'</span>, acq.threshold ),<span class="keyword">...</span>
0628         <s