Histogram of image with opencv in java
<p>I need to compare histogram of video's frame to detect scene changes. I have tried to use the method <code>calcHist</code> of the library <strong>Imgproc</strong> of <strong>opencv 3.1.0</strong> with these parameters as suggested in another question (I'm working in Eclipse with Java):</p>

<pre><code>Imgproc.calcHist(matList,new MatOfInt(0),new Mat(),histogram,new MatOfInt(25),ranges);
</code></pre>

<p>Someone can explain me the meaning of all parameters?
It compile but I don't understand the meaning of the output, for example:</p>

<pre><code>Histogram frame 0=[684213;291263;126683;78313;50989;30860;93541;76835;154938;55532;38304;93131;479949345;34612;34889;39014;25014;13223;14521;9534;5310;3310;2650;19581]
</code></pre>

<p>what's the meaning of this? how can I plot the histogram?
thank you very much</p>