Opencv3.0.0‘s bug of normalize function #489
Description
My platform is windows 64bit,visual stdio 2013,i am using the opencv3.0.0 to test the normalize() function.I have found something wrong with it.
If i use in-place way to normalize a CV_64FC1 Mat to a CV_32F it would be wrong.but when use non in-place way to normalize a CV_64FC1 Mat to a CV_32F it would be wright.
pragma once
pragma warning(disable: 4819)
ifdef _DEBUG
define lnkLIB(name) name "d"
else
define lnkLIB(name) name
endif
include
include
define CV_VERSION_ID CVAUX_STR(CV_MAJOR_VERSION) CVAUX_STR(CV_MINOR_VERSION) CVAUX_STR(CV_SUBMINOR_VERSION)
define cvLIB(name) lnkLIB("opencv_" name CV_VERSION_ID)
pragma comment( lib, cvLIB("core"))
pragma comment( lib, cvLIB("imgproc"))
pragma comment( lib, cvLIB("highgui"))
if CV_MAJOR_VERSION == 3
pragma comment(lib, cvLIB("imgcodecs")) //the opencv3.0 need it
endif
if CV_MAJOR_VERSION == 2
pragma comment(lib, cvLIB("contrib"))
endif
include
using namespace cv;
using namespace std;
int main()
{
Mat img = Mat::zeros(1, 5, CV_64FC1);
img.at(0, 0) = 0.0345;
img.at(0, 1) = 0.2322;
img.at(0, 2) = 0.6483;
img.at(0, 3) = 0.2322;
img.at(0, 4) = 0.0345;
//it will be produce wrong result
normalize(img, img, 1, 0, NORM_MINMAX, CV_32F);
//it will be produce wright result
Mat img1;
//normalize(img, img1, 1, 0, NORM_MINMAX, CV_32F);
return 0;
}