As same with Matlab, we can use inequality ">,<,==,>=,<=".
Firstly, we check equal to '0' or '>0', the result is output to '255' if satisfied.
Divide by 255 then elements have left '0' or '1'
And sum all of the element, then we can get the number of zero.
Source code is here..
Mat a = Mat(5, 5, CV_8UC1);
randn(a, 0, 1);
Mat b = (a == 0) / 255;
Mat c = (a > 0) / 255;
cout << "Input matrix matrix a = " << endl;
cout << a << endl;
cout << "number of 0 = " << sum(b)[0];
cout << ", number of over 0 = " << sum(c)[0] << endl << endl;
cout << "matrix b = " << endl;
cout << b << endl;
cout << "matrix c = " << endl;
cout << c << endl;
9/24/2017
Tip, How to count number of '0' in element of Matrix(Mat)?
Subscribe to:
Post Comments (Atom)
-
This is data acquisition source code of LMS511(SICK co.) Source code is made by MFC(vs 2008). The sensor is communicated by TCP/IP. ...
-
In past, I wrote an articel about YUV 444, 422, 411 introduction and yuv rgb converting example code. refer to this page -> http://feel...
-
Image size of origin is 320*240. Processing time is 30.96 second took. The result of stitching The resul...
-
Open Source License Commercial Use Guide Understanding Commercial Rights in Open Source Licenses π Legend ✅ Free : Comm...
-
C++ Template Parameter Packs with sequence Simple Explanation sequence<x,x,x> is a template that holds a compile-time list of int...
-
Created Date : 2007.1 Language : C/C++ Tool : Microsoft Visual C++ 6.0 Library & Utilized : OpenCV 1.0 Reference : Learning Ope...
-
OpenCV has AdaBoost algorithm function. And gpu version also is provided. For using detection, we prepare the trained xml file. Although...
-
A C++ pattern where you create a temporary object and immediately call its function operator in one line. The syntax Class<Template...
-
* Introduction - The solution shows panorama image from multi images. The panorama images is processing by real-time stitching algorithm...
-
dp parameter is about resolution of voting space. dp is larger, voting resolution is small compare to image size. so dp is larger, circle...
No comments:
Post a Comment