ssianBlur5x5.</span></span><span class="sig-name descname"><span class="pre">canny1d</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">bgr_array</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">width</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">height</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">format_32</span></span><span class="o"><span class="pre">=</span></span><sp