brightboost
35 lines
892 B
HTML
Executable File
35 lines
892 B
HTML
Executable File
<html>
|
|
<head>
|
|
<style>
|
|
canvas {
|
|
border: 1px solid black;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<input type="file" id="imgLoader" />
|
|
<br>
|
|
<canvas id="canvas"></canvas>
|
|
<script>
|
|
let canvas = document.getElementById("canvas");
|
|
let ctx = canvas.getContext("2d");
|
|
let imgLoader = document.getElementById("imgLoader");
|
|
imgLoader.addEventListener("change", upImage, false);
|
|
function upImage() {
|
|
let fr = new FileReader();
|
|
fr.readAsDataURL(event.target.files[0]);
|
|
fr.onload = function (e) {
|
|
let img = new Image();
|
|
img.src = event.target.result;
|
|
img.onload = function () {
|
|
canvas.width = img.width;
|
|
canvas.height = img.height;
|
|
ctx.drawImage(img, 0, 0);
|
|
};
|
|
console.log(fr);
|
|
};
|
|
}
|
|
</script>
|
|
</body>
|
|
</html>
|