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fix window error

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This commit is contained in:
Peter Braden 2014-10-15 20:31:19 +02:00
parent a4af50daf7
commit 97875da492
3 changed files with 17 additions and 7 deletions
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8
examples/camera.js
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@ -2,11 +2,15 @@ var cv = require('../lib/opencv');
var camera = new cv.VideoCapture(0);
var window = new cv.NamedWindow('Video', 0)
/*
setInterval(function() {
camera.read(function(err, im) {
if (err) throw err;
window.show(im);
console.log(im.size())
if (im.size()[0] > 0 && im.size()[1] > 0){
window.show(im);
}
window.blockingWaitKey(0, 50);
});
}, 20);
*/

8
examples/face-detection-rectangle.js
View File

@ -3,11 +3,11 @@ var cv = require('../lib/opencv');
var COLOR = [0, 255, 0]; // default red
var thickness = 2; // default 1
cv.readImage('./files/mona.png', function(err, im) {
cv.readImage('./examples/files/mona.png', function(err, im) {
if (err) throw err;
if (im.width() < 1 || im.height() < 1) throw new Error('Image has no size');
im.detectObject('../data/haarcascade_frontalface_alt2.xml', {}, function(err, faces) {
im.detectObject('./data/haarcascade_frontalface_alt2.xml', {}, function(err, faces) {
if (err) throw err;
for (var i = 0; i < faces.length; i++) {
@ -15,8 +15,8 @@ cv.readImage('./files/mona.png', function(err, im) {
im.rectangle([face.x, face.y], [face.x + face.width, face.y + face.height], COLOR, 2);
}
im.save('./tmp/face-detection-rectangle.png');
console.log('Image saved to ./tmp/face-detection-rectangle.png');
im.save('./examples/tmp/face-detection-rectangle.png');
console.log('Image saved to ./examples/tmp/face-detection-rectangle.png');
});
});

8
src/HighGUI.cc
View File

@ -53,7 +53,13 @@ NamedWindow::NamedWindow(const std::string& name, int f){
NAN_METHOD(NamedWindow::Show){
SETUP_FUNCTION(NamedWindow)
Matrix *im = ObjectWrap::Unwrap<Matrix>(args[0]->ToObject());
cv::imshow(self->winname, im->mat);
try{
cv::imshow(self->winname, im->mat);
} catch(cv::Exception& e ){
const char* err_msg = e.what();
NanThrowError(err_msg);
}
NanReturnValue(args.Holder());
}