Croppie : How to get output image in JPEG instead of default PNG? - croppie

Question

I use croppie to upload images in my laravel application. The upload part works flawlessly. However, since the PNG image takes more space than the original images. I want to have jpeg images stored on the server instead of PNG and with my own quality parameters provided.
Here is the javascript code I use for uploading images using croppie.
but save image with PNG format
$(function() {
var croppie = null;
var el = document.getElementById('resizer');
$.base64ImageToBlob = function(str) {
// extract content type and base64 payload from original string
var pos = str.indexOf(';base64,');
var type = str.substring(5, pos);
var b64 = str.substr(pos + 8);
// decode base64
var imageContent = atob(b64);
// create an ArrayBuffer and a view (as unsigned 8-bit)
var buffer = new ArrayBuffer(imageContent.length);
var view = new Uint8Array(buffer);
// fill the view, using the decoded base64
for (var n = 0; n < imageContent.length; n++) {
view[n] = imageContent.charCodeAt(n);
}
// convert ArrayBuffer to Blob
var blob = new Blob([buffer], { type: type });
return blob;
}
$.getImage = function(input, croppie) {
if (input.files && input.files[0]) {
var reader = new FileReader();
reader.onload = function(e) {
croppie.bind({
url: e.target.result,
});
}
reader.readAsDataURL(input.files[0]);
}
}
$("#file-upload").on("change", function(event) {
$("#myModal").modal();
// Initailize croppie instance and assign it to global variable
croppie = new Croppie(el, {
viewport: {
width: 200,
height: 200,
type: 'circle'
},
boundary: {
width: 250,
height: 250
},
enableOrientation: true
});
$.getImage(event.target, croppie);
});
$("#upload").on("click", function() {
croppie.result('base64','original','jpeg',0).then(function(base64) {
$("#myModal").modal("hide");
$("#profile-pic").attr("src","/images/ajax-loader.gif");
var url = "{{ url('/demos/jquery-image-upload') }}";
var formData = new FormData();
formData.append("profile_picture", $.base64ImageToBlob(base64));
// This step is only needed if you are using Laravel
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
$.ajax({
type: 'POST',
url: url,
data: formData,
processData: false,
contentType: false,
success: function(data) {
if (data == "uploaded") {
$("#profile-pic").attr("src", base64);
} else {
$("#profile-pic").attr("src","/images/icon-cam.png");
console.log(data['profile_picture']);
}
},
error: function(error) {
console.log(error);
$("#profile-pic").attr("src","/images/icon-cam.png");
}
});
});
});
// To Rotate Image Left or Right
$(".rotate").on("click", function() {
croppie.rotate(parseInt($(this).data('deg')));
});
$('#myModal').on('hidden.bs.modal', function (e) {
// This function will call immediately after model close
// To ensure that old croppie instance is destroyed on every model close
setTimeout(function() { croppie.destroy(); }, 100);
})
});

Answer 1

I faced similar issues a while ago.
I am using the jQuery way as per the docs. The OP is also using jQuery elsewhere, so...
Croppie is attached this way:
upload = $('#upload_div').croppie(method, args);
Instead of passing the parameters like this:
croppie.result('base64','original','jpeg',0).then(function(base64){...
You pass named parameters:
upload.croppie(
'result',
{type: 'base64',
size: 'original',
format: 'jpeg',
quality: 0
}).then(function(base64){ ...

Answer 2

Use:
croppie.result({
type: 'base64',
format: 'jpeg',
viewport:'original',
quality:1,
circle: false
}).then(function (base64) {
...