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Don't assume a camera

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This commit is contained in:
Peter Braden 2014-10-15 20:59:46 +02:00
parent 1659f7ef1a
commit a62456f47b
2 changed files with 46 additions and 39 deletions
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32
examples/camera.js
View File

@ -1,16 +1,20 @@
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;
console.log(im.size())
if (im.size()[0] > 0 && im.size()[1] > 0){
window.show(im);
}
window.blockingWaitKey(0, 50);
});
}, 20);
*/
try {
var camera = new cv.VideoCapture(0);
var window = new cv.NamedWindow('Video', 0)
/*
setInterval(function() {
camera.read(function(err, im) {
if (err) throw err;
console.log(im.size())
if (im.size()[0] > 0 && im.size()[1] > 0){
window.show(im);
}
window.blockingWaitKey(0, 50);
});
}, 20);
*/
} catch (e){
console.log("Couldn't start camera:", e)
}

53
examples/take-face-pics.js
View File

@ -1,29 +1,32 @@
var cv = require('../lib/opencv');
var vid = new cv.VideoCapture(0);
try {
var vid = new cv.VideoCapture(0);
vid.read(function(err, im){
if (err) throw err;
vid.read(function(err, im){
if (err) throw err;
if (im.size()[0] > 0 && im.size()[1] > 0){
if (im.size()[0] > 0 && im.size()[1] > 0){
im.detectObject(cv.FACE_CASCADE, {}, function(err, faces){
if (err) throw err;
if (!faces.length) return console.log("No Faces");
im.detectObject(cv.FACE_CASCADE, {}, function(err, faces){
if (err) throw err;
if (!faces.length) return console.log("No Faces");
var face = faces[0];
var ims = im.size();
var im2 = im.roi(face.x, face.y, face.width, face.height)
/*
im.adjustROI(
-face.y
, (face.y + face.height) - ims[0]
, -face.x
, (face.x + face.width) - ims[1])
*/
im2.save('./examples/tmp/take-face-pics.jpg')
console.log('Image saved to ./tmp/take-face-pics.jpg');
})
} else {
console.log("Camera didn't return image")
}
});
var face = faces[0];
var ims = im.size();
var im2 = im.roi(face.x, face.y, face.width, face.height)
/*
im.adjustROI(
-face.y
, (face.y + face.height) - ims[0]
, -face.x
, (face.x + face.width) - ims[1])
*/
im2.save('./examples/tmp/take-face-pics.jpg')
console.log('Image saved to ./tmp/take-face-pics.jpg');
})
} else {
console.log("Camera didn't return image")
}
});
} catch (e){
console.log("Couldn't start camera", e)
}