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import QtQuick 2.0
import "../contents"
Item {
id:container
width:360
height:600
Column {
spacing:5
anchors.fill:parent
Text { font.pointSize:25; text:"Processing pixels"; anchors.horizontalCenter:parent.horizontalCenter}
Canvas {
id:canvas
width:360
height:360
smooth:true
renderTarget:Canvas.Image
threadRendering:false
property string image :"../contents/qt-logo.png"
Component.onCompleted:loadImage(image);
onImageLoaded:requestPaint();
onPaint: {
var ctx = canvas.getContext('2d');
if (canvas.isImageLoaded(image)) {
var pixels = ctx.createImageData(image);
//pixels.mirror();
pixels.filter(Canvas.GrayScale);
//pixels.filter(Canvas.Threshold, 100); //default 127
//pixels.filter(Canvas.Blur, 20); //default 10
//pixels.filter(Canvas.Opaque);
//pixels.filter(Canvas.Invert);
//pixels.filter(Canvas.Convolute, [0,-1,0,
// -1,5,-1,
// 0,-1,0]);
//ctx.putImageData(pixels, 0, 0, canvas.width, canvas.height);
ctx.putImageData(pixels, 0, 0);
}
}
}
}
}
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