December 2018
Intermediate to advanced
280 pages
7h 23m
English
Content preview from Mastering OpenCV 4 - Third Edition
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Threshold filter
For threshold, we are going to show an input range element, with a default value of 100 and a range between 0 and 200. When we modify this range value, the attached span element will show the value selected. The final code snippet for the threshold HTML template looks like this:
<div id="step3_o1" class="step_blocks hide"> <span class="step">3</span> Threshold: <span id="value_sel">100</span> <input type="range" class="custom-range" min="0" max="255" value="100" id="value"> </div>
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