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added mask parameter

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This commit is contained in:
Thomas Hoffmann 2015-05-15 11:34:11 +02:00
parent 569a1143cd
commit 2704d607fe
2 changed files with 60 additions and 3 deletions
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26
examples/mat-normalize.js Normal file
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@ -0,0 +1,26 @@
var cv = require('../lib/opencv');
cv.readImage("./examples/files/mona.png", function(err, orig) {
if (err) throw err;
orig.convertGrayscale();
var mask = new cv.Matrix(orig.height(),orig.width(),cv.Constants.CV_8UC1);
var buf = Buffer(orig.height()*orig.width());
buf.fill(0);
for(var i=0;i<buf.length;i++){
buf[i] = (i%2===1)?0:255;
}
mask.put(buf);
orig.normalize(10,250,cv.Constants.NORM_TYPE_MASK,-1,mask);
/*
var window = new cv.NamedWindow('Mat-Normalize', 0);
window.show(orig);
window.blockingWaitKey(0, 50);
setTimeout(function(){
// keep the windows 30sec open
},30000);
*/
});

37
src/Matrix.cc
View File

@ -321,12 +321,43 @@ NAN_METHOD(Matrix::Normalize) {
if (!args[1]->IsNumber())
NanThrowTypeError("max is required (argument 2)");
int min = args[0]->Uint32Value();
int max = args[1]->Uint32Value();
int type = cv::NORM_MINMAX;
if (args[2]->IsNumber()){
type = args[2]->Uint32Value();
if (
(type!=cv::NORM_MINMAX) ||
(type!=cv::NORM_INF) ||
(type!=cv::NORM_L1) ||
(type!=cv::NORM_L2) ||
(type!=cv::NORM_L2SQR) ||
(type!=cv::NORM_HAMMING) ||
(type!=cv::NORM_HAMMING2) ||
(type!=cv::NORM_RELATIVE) ||
(type!=cv::NORM_TYPE_MASK)
){
NanThrowTypeError("type value must be NORM_INF=1, NORM_L1=2, NORM_L2=4, NORM_L2SQR=5, NORM_HAMMING=6, NORM_HAMMING2=7, NORM_TYPE_MASK=7, NORM_RELATIVE=8, NORM_MINMAX=32 ");
}
}
int dtype = -1;
if (args[3]->IsNumber()){
dtype = args[3]->IntegerValue();
}
double min = args[0]->NumberValue();
double max = args[1]->NumberValue();
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
cv::Mat norm;
cv::normalize(self->mat, norm,min,max, cv::NORM_MINMAX);
cv::Mat mask;
if (args[4]->IsObject()){
Matrix *mmask = ObjectWrap::Unwrap<Matrix>( args[4]->ToObject() );
mask = mmask->mat;
}
cv::normalize(self->mat, norm,min,max, type, dtype, mask);
norm.copyTo(self->mat);