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visualize_HDR.html
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<html>
<head>
<!---------------------- JAVASCRIPT STUFF ----------------------------->
<script>
// Check for the various File API support.
if (window.File && window.FileReader && window.FileList && window.Blob) {
// Great success! All the File APIs are supported.
} else {
alert('The File APIs are not fully supported in this browser.');
}
</script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<!-- Plotly.js -->
<script src="https://cdn.plot.ly/plotly-latest.min.js"></script>
<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script>
<script src="https://enkimute.github.io/res/hdrpng.min.js"></script>
<!---------------------- JAVASCRIPT STUFF ----------------------------->
<!---------------------- CSS STUFF ----------------------------->
<link rel="stylesheet" href="css/zoom.css">
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css">
<link rel="stylesheet" href="css/visualize.css">
<!---------------------- JAVASCRIPT STUFF ----------------------------->
</head>
<body>
<hr>
<div style="text-align:center;">
<input type="button" value="Clear selection" onclick="clearImgs()">
<div style="clear: both;"></div>
Exposure <div id="exposure-val"></div>
<input min="-10" max="10" step="0.05" value="0.0" title="Exposure" oninput="adjExp(this.value)" type="range">
Gamma <div id="gamma-val"></div>
<input min="-10" max="10" step="0.05" value="0.0" title="Gamma" oninput="adjGamma(this.value)" type="range">
</div>
<div style="clear: both;"></div>
<div class="split left">
<h2>Reference image:</h2>
<div class="centered">
<p>Drop image below</p>
<div id="ref-container">
</div>
</div>
</div>
<div class="split right">
<h2>Carousel - test images:</h2>
<div class="centered">
<p>Drop images below</p>
<div id="carousel-container">
<div id="show" class="carousel" data-ride="carousel">
<!-- Wrapper for slides -->
<div class="carousel-inner">
</div>
<!-- Left and right controls -->
<a class="left carousel-control" href="#show" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#show" data-slide="next">
<span class="glyphicon glyphicon-chevron-right"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
</div>
</div>
<div style="clear: both;"></div>
<hr>
<h2>Zoom & Error:</h2>
<div class="split-zoom left-zoom">
<div class="img-zoom-container-imgs">
</div>
</div>
<div class="split-zoom right-zoom">
<div id="pixel-coord"></div>
<div class="grid-container img-zoom-container-zooms">
</div>
<div id="l2ErrorPlot">
</div>
<div id="MantiukErrorPlot">
</div>
</div>
<!---------------------- JAVASCRIPT STUFF ----------------------------->
<!-- file selection and select populating script -->
<script type="text/javascript">
function adjExp(val){
var expCont=document.getElementById("exposure-val");
expCont.innerText=val;
var hdrImgs=document.getElementsByTagName("canvas");
for (let hdrI of hdrImgs){
hdrI.exposure=val;
}
}
function adjGamma(valu){
var gammaCont=document.getElementById("gamma-val");
gammaCont.innerText=valu;
var hdrImgs=document.getElementsByTagName("canvas");
for (let hdrI of hdrImgs){
hdrI.gamma=valu;
}
}
function clearImgs(){
var carouselCont=document.getElementsByClassName("carousel-inner")[0];
carouselCont.innerHTML="";
$('.img-zoom-container-imgs').empty();
$('.img-zoom-container-zooms').empty();
}
var carousel=document.getElementById("carousel-container");
carousel.ondragover = function(e) { e.preventDefault(); e.dataTransfer.dropEffect='link'; }
var selRefImg=new HDRImage();
carousel.ondrop = function(e) {
e.preventDefault(); e.stopPropagation();
var carouselCont=document.getElementsByClassName("carousel-inner")[0];
var active=true;
for (let opt of e.dataTransfer.files){
var selDiv=document.createElement('div');
var selImg=new HDRImage();
if (active & document.getElementsByClassName("item").length==0){
selDiv.setAttribute("class","item active");
active=false;
}else{
selDiv.setAttribute("class","item");
}
selImg.src=URL.createObjectURL(opt)+'#'+opt.name;
selRefImg.src=selImg.src;
var captDiv=document.createElement('div');
captDiv.setAttribute("class","carousel-caption");
captDiv.innerHTML=['<p>',escape(opt.name.split('.').slice(0, -1).join('.')),'</p>'].join('');
carouselCont.append(selDiv);
selDiv.appendChild(selImg);
selDiv.appendChild(captDiv);
}
$('.carousel').carousel();
zoom();
}
selRefImg.onload=function(){
$(".carousel-inner").css({"height":selRefImg.height, "width":selRefImg.width});
}
var refCont = document.getElementById("ref-container");
var refFig = document.createElement('figure');
var refImg=new HDRImage();
var figCapt=document.createElement('figcaption');
figCapt.setAttribute("class", "carousel-caption");
refImg.setAttribute("id", "refImg");
refFig.appendChild(refImg);
refCont.appendChild(refFig);
refCont.appendChild(figCapt);
refCont.ondragover = function(e) { e.preventDefault(); e.dataTransfer.dropEffect='link'; }
refCont.ondrop = function(e) {
e.preventDefault(); e.stopPropagation();
refImg.src = URL.createObjectURL(e.dataTransfer.files[0])+'#'+e.dataTransfer.files[0].name;
figCapt.innerText=escape(e.dataTransfer.files[0].name.split('.').slice(0, -1).join('.'));
}
refImg.onload=function(){
refCont.style.height=refImg.height;
refCont.style.width=refImg.width;
zoom();
}
function zoom(){
var refImg=document.getElementById('refImg');
var selected=document.getElementsByClassName('item');
$('.img-zoom-container-imgs').empty();
$('.img-zoom-container-zooms').empty();
if (refImg){
var refImgUrl=refImg.toDataURL();
refImgZoom=new Image();
refImgZoom.src=refImgUrl;
refImgZoom.setAttribute("id", "refImg-zoom");
refImgZoom.setAttribute("class", "zoomed-image");
var refImgZoomContainer=document.createElement("div");
refImgZoomContainer.id="ref-img-zoom-container";
$('.img-zoom-container-imgs').append(refImgZoomContainer);
$("#ref-img-zoom-container").append(refImgZoom);
var refZoomDiv=document.createElement('div');
refZoomDiv.setAttribute("class", "img-zoom-result");
refZoomDiv.setAttribute("id","ref-zoom");
refZoomDiv.innerHTML=["reference"];
$(".img-zoom-container-zooms").append(refZoomDiv);
imageZoom("refImg-zoom", "ref-zoom", true);
}
for (let opt of selected){
// selImgUrls.push(opt.childNodes[0].toDataURL());
if (opt.getAttribute("loaded")!=1){
opt.childNodes[0].onload=function(){
opt.childNodes[0].toBlob(function(blob) {
var selImg=new Image();
url = URL.createObjectURL(blob);
selImg.src=url;
selImg.setAttribute("class", "zoomed-image");
selImg.setAttribute("id",[opt.childNodes[1].innerText, "-img"].join(''));
// selImg.setAttribute("style", "width:30%"); //TODO: TO CHANGE TO NORMAL SIZE
var zoomDiv=document.createElement('div');
zoomDiv.setAttribute("class", "img-zoom-result");
zoomDiv.innerHTML=[opt.childNodes[1].innerText];
zoomDiv.setAttribute("id",[opt.childNodes[1].innerText, "-zoom"].join(''));
selImg.onload=function(){
$(".img-zoom-container-imgs").append(selImg);
$(".img-zoom-container-zooms").append(zoomDiv);
imageZoom([opt.childNodes[1].innerText, "-img"].join(''), [opt.childNodes[1].innerText, "-zoom"].join(''), false);
}
opt.setAttribute("loaded",1);
});}
}else{
opt.childNodes[0].toBlob(function(blob) {
var selImg=new Image();
url = URL.createObjectURL(blob);
selImg.src=url;
selImg.setAttribute("class", "zoomed-image");
selImg.setAttribute("id",[opt.childNodes[1].innerText, "-img"].join(''));
// selImg.setAttribute("style", "width:30%"); //TODO: TO CHANGE TO NORMAL SIZE
var zoomDiv=document.createElement('div');
zoomDiv.setAttribute("class", "img-zoom-result");
zoomDiv.innerHTML=[opt.childNodes[1].innerText];
zoomDiv.setAttribute("id",[opt.childNodes[1].innerText, "-zoom"].join(''));
selImg.onload=function(){
$(".img-zoom-container-imgs").append(selImg);
$(".img-zoom-container-zooms").append(zoomDiv);
imageZoom([opt.childNodes[1].innerText, "-img"].join(''), [opt.childNodes[1].innerText, "-zoom"].join(''), false);
}
opt.setAttribute("loaded",1);
});
}
}
}
function imageZoom(imgID, resultID, isref) {
var img, lens, result, cx, cy;
img = document.getElementById(imgID);
result = document.getElementById(resultID);
/* Create lens: */
lens = document.createElement("DIV");
lens.setAttribute("class", "img-zoom-lens");
if (isref==false){
lens.setAttribute("style", "visibility: hidden");
}
/* Insert lens: */
img.parentElement.insertBefore(lens, img);
/* Calculate the ratio between result DIV and lens: */
cx = result.offsetWidth / lens.offsetWidth;
cy = result.offsetHeight / lens.offsetHeight;
/* Set background properties for the result DIV */
result.style.backgroundImage = "url('" + img.src + "')";
result.style.backgroundSize = (img.width * cx) + "px " + (img.height * cy) + "px";
/* Execute a function when someone moves the cursor over the image, or the lens: */
lens.addEventListener("mousemove", moveLens);
img.addEventListener("mousemove", moveLens);
/* And also for touch screens: */
lens.addEventListener("touchmove", moveLens);
img.addEventListener("touchmove", moveLens);
function moveLens(e) {
var pos, x, y;
/* Prevent any other actions that may occur when moving over the image */
e.preventDefault();
/* Get the cursor's x and y positions: */
pos = getCursorPos(e);
/* Calculate the position of the lens: */
lenses=document.getElementsByClassName("img-zoom-lens");
for (let lens of lenses){
x = pos.x - (lens.offsetWidth / 2);
y = pos.y + (lens.offsetHeight / 2);
// /* Prevent the lens from being positioned outside the image: */
if (x > img.width - lens.offsetWidth) {x = img.width - lens.offsetWidth;}
if (x < 0) {x = 0;}
if (y > img.height) {y = img.height;}
if (y < lens.offsetHeight) {y = lens.offsetHeight;}
/* Set the position of the lens: */
lens.style.left = x + "px";
lens.style.top = y + "px";
}
results=document.getElementsByClassName("img-zoom-result");
for (let result of results){
/* Display what the lens "sees": */
result.style.backgroundPosition = "-" + (x * cx) + "px -" + ((y- (lens.offsetHeight)) * cy) + "px";
}
errorBars({x:Math.floor(x), y: Math.floor(y-lens.offsetHeight)}, {lw: lens.offsetWidth, lh: lens.offsetHeight});
}
function getCursorPos(e) {
var a, x = 0, y = 0;
e = e || window.event;
/* Get the x and y positions of the image: */
a = img.getBoundingClientRect();
/* Calculate the cursor's x and y coordinates, relative to the image: */
x = e.pageX - a.left;
y = e.pageY - a.top;
/* Consider any page scrolling: */
x = x - window.pageXOffset;
y = y - window.pageYOffset;
return {x : x, y : y};
}
}
function errorBars(pos,ofs){
var pixelCoords=document.getElementById("pixel-coord");
pixelCoords.innerText="Pixel region:("+pos.x+"+"+ofs.lw+","+pos.y+"+"+ofs.lh+")";
var refImg=document.getElementById('refImg');
var selected=document.getElementsByClassName('item');
var refData=refImg.dataFloat;
//refimg rgb values
var refRads=[];
for (var i=pos.x; i<pos.x+ofs.lw; i++){
for (var j=pos.y; j<pos.y+ofs.lh; j++){
refRads.push(getPixelFloat(refData, refImg.width, refImg.height, i, j));
}
}
var l2Traces=[];
var mantiukTraces=[];
for (let sel of selected){
var selImg=sel.childNodes[0];
var selData=selImg.dataFloat;
var selImgName=sel.childNodes[1].innerText;
var selRads=[];
for (var i=pos.x; i<pos.x+ofs.lw; i++){
for (var j=pos.y; j<pos.y+ofs.lh; j++){
selRads.push(getPixelFloat(selData, selImg.width, selImg.height, i, j));
}
}
var L2norms=[];
var MSE=[];
for (var i=0; i<selRads.length;i++){
L2norms.push(Math.pow( Math.abs( refRads[i].r-selRads[i].r) , 2) + Math.pow( Math.abs( refRads[i].g-selRads[i].g) , 2) + Math.pow( Math.abs( refRads[i].b-selRads[i].b) , 2));
var refLum=0.2126*refRads[i].r + 0.7152*refRads[i].g +0.0722*refRads[i].b;
var selLum=0.2126*selRads[i].r + 0.7152*selRads[i].g +0.0722*selRads[i].b;
MSE.push(Math.pow(Math.log10(refLum)-Math.log10(selLum) ,2));
}
var mantiukTrace={y:MSE, type:'box', name:selImgName, boxmean: 'sd' , boxpoints: false};
mantiukTraces.push(mantiukTrace);
var l2Trace = {y:L2norms, type:'box', name:selImgName, boxmean: 'sd' , boxpoints: false};
l2Traces.push(l2Trace);
}
var l2layout = {
title:{text:"L2 norm"},
xaxis:{showticklabels: false},
yaxis: {
type: 'log',
autorange: true}};
var mantiuklayout = {
title:{text:"Luminance MSE"},
xaxis:{showticklabels: false},
yaxis: {
type: 'log',
autorange: true}};
Plotly.newPlot("l2ErrorPlot",l2Traces, l2layout);
Plotly.newPlot("MantiukErrorPlot", mantiukTraces, mantiuklayout);
function getPixelFloat(data, width, height, x, y){
var i = (Math.round(x) + Math.round(y) * width) * 3;
return {
r: data[i],
g: data[i+1],
b: data[i+2],
};
}
}
</script>
<!---------------------- JAVASCRIPT STUFF END----------------------------->
</body>
</html>