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Why is image uploader not working on chrome?

I have a button where you can upload an image and insert it in a tag, it works on every browser but not on chrome. The first reader.onloadend is processed, I can log image and image.src.
var inputUpload = document.getElementById('buttonUpload');
inputUpload.addEventListener('change', (e) => {
const file = e.target.files[0];
const reader = new FileReader();
reader.onloadend = () => {
//Initiate the JavaScript Image object.
var image = new Image();
image.src = reader.result;
console.log('image.src');
image.onloadend = function() { /* execution stops here */
var height = this.height;
var width = this.width;
if (height > 150 || width > 150) {
showAlert('Image dimensions must be within 150×150 pixels.');
} else {
// convert file to base64 String
const base64String = reader.result.replace('data:', '').replace(/^.+,/, '');
// display image
valueImg = "data:image/png;base64," + base64String;
updateImg(valueImg);
};
};
};
reader.readAsDataURL(file);
});
<button id="buttonUpload" type="button" class="d-inline btn-custom mx-0">
Upload
</button>
When I select the image file, it stops at image.loadend but I get no errors in the console

image name and dimension mismatched on fileselect through loop

As per my previously posted question below which i got answered. I need to get image name along with dimension.
I already tried lot of things to get them but the name and dimension is getting mismatched
How to read(image data / dimension / filesize / name) multiple images on file select?

below is the complete function to get image file information.
fileSelect.addEventListener("change", getSomeFile, false);
function getSomeFile(ev){
var file= ev.target.files;
if (file) {
for(var i=0,f; f = file[i]; i++){
if(!f.type.match('image.*')){continue;}
(function(f){
var reader = new FileReader();
reader.readAsDataURL(file[i]);
reader.onload = function () {
var img = new Image();
img.onload = function() {
var span = document.createElement('span');
span.innerHTML = ['<img id="thumb" src="', img.src,'"/>'].join('');
document.getElementById('mid').appendChild(span, null);
var fileName =f.name;
var fileSize =Math.round(f.size/1024)+' KB';
var imageWidth = img.width;
var imageHeight = img.height;
};
img.src = reader.result;
};
})(file[i]);
}
}
fileSelect.value='';
}

Find width and height uploaded image in canvas HTML5.(With file reader)

I am using HTML5 and fabric js for uploading multiple image in canvas. Right now i am uploading multiple image in canvas. But i want to find uploaded image width and height. I have seen one link Check image width and height before upload with Javascript
In this link not using file reader. But in my case using file reader.
var canvas = new fabric.Canvas('canvas');
document.getElementById('file').addEventListener("change",function (e) {
var file = e.target.files[0];
var reader = new FileReader();
console.log("reader " + reader);
reader.onload = function (f) {
var data = f.target.result;
fabric.Image.fromURL(data, function (img) {
var oImg = img.set({ width: 250, height: 200, angle: 0}).scale(0.9);
canvas.add(oImg).renderAll();
var a = canvas.setActiveObject(oImg);
var dataURL = canvas.toDataURL({format: 'png', quality: 0.8});
});
};
reader.readAsDataURL(file);
});
canvas{
border: 1px solid black;
}
<script src="https://rawgit.com/kangax/fabric.js/master/dist/fabric.min.js"></script>
<input type="file" id="file">
<div style="">
<canvas id="canvas" width="450" height="450"></canvas>
</div>

You can create an img tag and get the dimensions from it.
document.getElementById('file').addEventListener("change",function (e) {
var file = e.target.files[0];
var reader = new FileReader();
var output = document.getElementById('output');
reader.onload = function (f) {
var data = f.target.result;
var img = document.createElement('img');
img.src = data;
img.onload = function() {
output.innerHTML = 'width: ' + img.width + '\n' +
'height: ' + img.height;
};
};
reader.readAsDataURL(file);
});
<input type="file" id="file"/>
<pre id="output"></pre>

#jcubic is right about using an <img> tag, (while there would be some ways to get this info without it) but he is absolutely wrong in how he gets the image's dimensions.
.clientWidth and .clientHeight will return the computed width of the <img> element. You don't care about it, since what you are drawing on your canvas is the image contained in the <img>, not the <img> element itself.
What you need then is .width and .height properties or .naturalWidth and .naturalHeight.
document.getElementById('file').addEventListener("change",function (e) {
var file = e.target.files[0];
var reader = new FileReader();
var output = document.getElementById('output');
reader.onload = function () {
var data = this.result;
var img = new Image();
img.src = data;
img.onload = function() {
output.innerHTML = 'width: ' + img.width + '\n' +
'height: ' + img.height;
};
};
reader.readAsDataURL(file);
});
<input type="file" id="file"/>
<pre id="output"></pre>

Get file size, image width and height before upload

How can I get the file size, image height and width before upload to my website, with jQuery or JavaScript?

Multiple images upload with info data preview
Using HTML5 and the File API
Example using URL API
The images sources will be a URL representing the Blob object
<img src="blob:null/026cceb9-edr4-4281-babb-b56cbf759a3d">
const EL_browse = document.getElementById('browse');
const EL_preview = document.getElementById('preview');
const readImage = file => {
if ( !(/^image\/(png|jpe?g|gif)$/).test(file.type) )
return EL_preview.insertAdjacentHTML('beforeend', `Unsupported format ${file.type}: ${file.name}<br>`);
const img = new Image();
img.addEventListener('load', () => {
EL_preview.appendChild(img);
EL_preview.insertAdjacentHTML('beforeend', `<div>${file.name} ${img.width}×${img.height} ${file.type} ${Math.round(file.size/1024)}KB<div>`);
window.URL.revokeObjectURL(img.src); // Free some memory
});
img.src = window.URL.createObjectURL(file);
}
EL_browse.addEventListener('change', ev => {
EL_preview.innerHTML = ''; // Remove old images and data
const files = ev.target.files;
if (!files || !files[0]) return alert('File upload not supported');
[...files].forEach( readImage );
});
#preview img { max-height: 100px; }
<input id="browse" type="file" multiple>
<div id="preview"></div>
Example using FileReader API
In case you need images sources as long Base64 encoded data strings
<img src="data:image/png;base64,iVBORw0KGg... ...lF/++TkSuQmCC=">
const EL_browse = document.getElementById('browse');
const EL_preview = document.getElementById('preview');
const readImage = file => {
if ( !(/^image\/(png|jpe?g|gif)$/).test(file.type) )
return EL_preview.insertAdjacentHTML('beforeend', `<div>Unsupported format ${file.type}: ${file.name}</div>`);
const reader = new FileReader();
reader.addEventListener('load', () => {
const img = new Image();
img.addEventListener('load', () => {
EL_preview.appendChild(img);
EL_preview.insertAdjacentHTML('beforeend', `<div>${file.name} ${img.width}×${img.height} ${file.type} ${Math.round(file.size/1024)}KB</div>`);
});
img.src = reader.result;
});
reader.readAsDataURL(file);
};
EL_browse.addEventListener('change', ev => {
EL_preview.innerHTML = ''; // Clear Preview
const files = ev.target.files;
if (!files || !files[0]) return alert('File upload not supported');
[...files].forEach( readImage );
});
#preview img { max-height: 100px; }
<input id="browse" type="file" multiple>
<div id="preview"></div>

Demo
Not sure if it is what you want, but just simple example:
var input = document.getElementById('input');
input.addEventListener("change", function() {
var file = this.files[0];
var img = new Image();
img.onload = function() {
var sizes = {
width: this.width,
height: this.height
};
URL.revokeObjectURL(this.src);
console.log('onload: sizes', sizes);
console.log('onload: this', this);
}
var objectURL = URL.createObjectURL(file);
console.log('change: file', file);
console.log('change: objectURL', objectURL);
img.src = objectURL;
});

If you can use the jQuery validation plugin you can do it like so:
Html:
<input type="file" name="photo" id="photoInput" />
JavaScript:
$.validator.addMethod('imagedim', function(value, element, param) {
var _URL = window.URL;
var img;
if ((element = this.files[0])) {
img = new Image();
img.onload = function () {
console.log("Width:" + this.width + " Height: " + this.height);//this will give you image width and height and you can easily validate here....
return this.width >= param
};
img.src = _URL.createObjectURL(element);
}
});
The function is passed as ab onload function.
The code is taken from here

Here is a pure JavaScript example of picking an image file, displaying it, looping through the image properties, and then re-sizing the image from the canvas into an IMG tag and explicitly setting the re-sized image type to jpeg.
If you right click the top image, in the canvas tag, and choose Save File As, it will default to a PNG format. If you right click, and Save File as the lower image, it will default to a JPEG format. Any file over 400px in width is reduced to 400px in width, and a height proportional to the original file.
HTML
<form class='frmUpload'>
<input name="picOneUpload" type="file" accept="image/*" onchange="picUpload(this.files[0])" >
</form>
<canvas id="cnvsForFormat" width="400" height="266" style="border:1px solid #c3c3c3"></canvas>
<div id='allImgProperties' style="display:inline"></div>
<div id='imgTwoForJPG'></div>
SCRIPT
<script>
window.picUpload = function(frmData) {
console.log("picUpload ran: " + frmData);
var allObjtProperties = '';
for (objProprty in frmData) {
console.log(objProprty + " : " + frmData[objProprty]);
allObjtProperties = allObjtProperties + "<span>" + objProprty + ": " + frmData[objProprty] + ", </span>";
};
document.getElementById('allImgProperties').innerHTML = allObjtProperties;
var cnvs=document.getElementById("cnvsForFormat");
console.log("cnvs: " + cnvs);
var ctx=cnvs.getContext("2d");
var img = new Image;
img.src = URL.createObjectURL(frmData);
console.log('img: ' + img);
img.onload = function() {
var picWidth = this.width;
var picHeight = this.height;
var wdthHghtRatio = picHeight/picWidth;
console.log('wdthHghtRatio: ' + wdthHghtRatio);
if (Number(picWidth) > 400) {
var newHeight = Math.round(Number(400) * wdthHghtRatio);
} else {
return false;
};
document.getElementById('cnvsForFormat').height = newHeight;
console.log('width: 400 h: ' + newHeight);
//You must change the width and height settings in order to decrease the image size, but
//it needs to be proportional to the original dimensions.
console.log('This is BEFORE the DRAW IMAGE');
ctx.drawImage(img,0,0, 400, newHeight);
console.log('THIS IS AFTER THE DRAW IMAGE!');
//Even if original image is jpeg, getting data out of the canvas will default to png if not specified
var canvasToDtaUrl = cnvs.toDataURL("image/jpeg");
//The type and size of the image in this new IMG tag will be JPEG, and possibly much smaller in size
document.getElementById('imgTwoForJPG').innerHTML = "<img src='" + canvasToDtaUrl + "'>";
};
};
</script>
Here is a jsFiddle:
jsFiddle Pick, display, get properties, and Re-size an image file
In jsFiddle, right clicking the top image, which is a canvas, won't give you the same save options as right clicking the bottom image in an IMG tag.

As far as I know there is not an easy way to do this since Javascript/JQuery does not have access to the local filesystem. There are some new features in html 5 that allows you to check certain meta data such as file size but I'm not sure if you can actually get the image dimensions.
Here is an article I found regarding the html 5 features, and a work around for IE that involves using an ActiveX control. http://jquerybyexample.blogspot.com/2012/03/how-to-check-file-size-before-uploading.html

So I started experimenting with the different things that FileReader API had to offer and could create an IMG tag with a DATA URL.
Drawback: It doesn't work on mobile phones, but it works fine on Google Chrome.
$('input').change(function() {
var fr = new FileReader;
fr.onload = function() {
var img = new Image;
img.onload = function() {
//I loaded the image and have complete control over all attributes, like width and src, which is the purpose of filereader.
$.ajax({url: img.src, async: false, success: function(result){
$("#result").html("READING IMAGE, PLEASE WAIT...")
$("#result").html("<img src='" + img.src + "' />");
console.log("Finished reading Image");
}});
};
img.src = fr.result;
};
fr.readAsDataURL(this.files[0]);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="file" accept="image/*" capture="camera">
<div id='result'>Please choose a file to view it. <br/>(Tested successfully on Chrome - 100% SUCCESS RATE)</div>
(see this on a jsfiddle at http://jsfiddle.net/eD2Ez/530/)
(see the original jsfiddle that i added upon to at http://jsfiddle.net/eD2Ez/)

A working jQuery validate example:
$(function () {
$('input[type=file]').on('change', function() {
var $el = $(this);
var files = this.files;
var image = new Image();
image.onload = function() {
$el
.attr('data-upload-width', this.naturalWidth)
.attr('data-upload-height', this.naturalHeight);
}
image.src = URL.createObjectURL(files[0]);
});
jQuery.validator.unobtrusive.adapters.add('imageminwidth', ['imageminwidth'], function (options) {
var params = {
imageminwidth: options.params.imageminwidth.split(',')
};
options.rules['imageminwidth'] = params;
if (options.message) {
options.messages['imageminwidth'] = options.message;
}
});
jQuery.validator.addMethod("imageminwidth", function (value, element, param) {
var $el = $(element);
if(!element.files && element.files[0]) return true;
return parseInt($el.attr('data-upload-width')) >= parseInt(param["imageminwidth"][0]);
});
} (jQuery));

checking image size before upload

I noticed when uploading a profile pic to Twitter that its size is checked before upload. Can anyone point me to a solution like this?
Thanks

If you're checking the file size you can use something like uploadify to check the file size before upload.
Checking the actual file dimensions (height / width) may need to be done on the server.

I think it is impossible unless you use a flash. You can use uploadify or swfupload for such things.

I have tested this code in chrome and it works fine.
var x = document.getElementById('APP_LOGO'); // get the file input element in your form
var f = x.files.item(0); // get only the first file from the list of files
var filesize = f.size;
alert("the size of the image is : "+filesize+" bytes");
var i = new Image();
var reader = new FileReader();
reader.readAsDataURL(f);
i.src=reader.result;
var imageWidth = i.width;
var imageHeight = i.height;
alert("the width of the image is : "+imageWidth);
alert("the height of the image is : "+imageHeight);

Something like this should cope with forms loaded asynchronously, inputs with or without "multiple" set and avoid the race conditions that happen when using FileReader.readAsDataURL and Image.src.
$('#formContainer').on('change', '#inputFileUpload', function(event) {
var file, _fn, _i, _len, _ref;
_ref = event.target.files;
_fn = function(file) {
var reader = new FileReader();
reader.onload = (function(f) {
return function() {
var i = new Image();
i.onload = (function(e) {
var height, width;
width = e.target.width;
height = e.target.height;
return doSomethingWith(width, height);
});
return i.src = reader.result;
};
})(file);
return reader.readAsDataURL(file);
};
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
file = _ref[_i];
_fn(file);
}
});
Note: Needs jQuery, HTML5, hooks to a structure like:
<div id="formContainer">
<form ...>
...
<input type="file" id="inputFileUpload"></input>
...
</form>
</div>

You need check image Width and Height when Image onload.
var img = new Image;
img.src = URL.createObjectURL(file);
img.onload = function() {
var picWidth = this.width;
var picHeight = this.height;
if (Number(picWidth) > maxwidth || Number(picHeight) > maxheight) {
alert("Maximum dimension of the image to be 1024px by 768px");
return false;
}
}

This works perfectly for me
var _URL = window.URL || window.webkitURL;
$("#file").change(function(e) {
var file, img;
if ((file = this.files[0])) {
img = new Image();
img.onload = function() {
if((this.width < 800)||(this.height < 400)){
alert('Image too small. Images must be bigger than 800 x 400');
$('#file').val('');
}
};
img.onerror = function() {
alert( "not a valid file: " + file.type);
};
img.src = _URL.createObjectURL(file);
}
});
Kudos to the original creator: http://jsfiddle.net/4N6D9/1/
I modified this to specify the min width and height of an upload.