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Demo: image scaling provides incorrect values #1

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Demo: image scaling provides incorrect values #1

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c49466a
demo: keep image aspect ratio
paulirish May 13, 2017
b732b75
alert any exceptions (incl non-matching sizes)
paulirish May 13, 2017
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14 changes: 10 additions & 4 deletions test/browser_test.html
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,7 @@
display: block;
border: 1px solid rgba(0, 0, 0, .12);
margin-bottom: 20px;
width: 100%;
}

.clear {
Expand Down Expand Up @@ -173,10 +174,10 @@ <h1 class="left">Image SSIM
var img = new Image();
img.onload = function () {
var canvas = document.createElement('canvas');
canvas.width = width;
canvas.height = height;
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext('2d');
ctx.drawImage(img, 0, 0, width, canvas.height);
ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
var id = ctx.getImageData(0, 0, canvas.width, canvas.height);
done({width: canvas.width, height: canvas.height, data: id.data, channels: 4, canvas: canvas}, index);
};
Expand Down Expand Up @@ -214,7 +215,12 @@ <h1 class="left">Image SSIM
log.windowSize = pair[2];
log.luminance = pair[3];
var start = new Date().getTime();
var res = ImageSSIM.compare(images[0], images[1], pair[2], 0.01, 0.03, pair[3])
var res;
try {
res = ImageSSIM.compare(images[0], images[1], pair[2], 0.01, 0.03, pair[3])
} catch (e) {
alert(e);
}
log.ssim = Math.round(res.ssim * 1000) / 1000;
// log.mcs = Math.round(res.mcs * 1000) / 1000;
log.ellapsed = new Date().getTime() - start + 'ms';
Expand Down