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viewer.html
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viewer.html
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<!doctype html>
<html>
<head>
<title>KMU AI</title>
<style>
.button {
background-color: white;
color: black;
border: 2px solid #4CAF50;
padding: 15px 32px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
margin: 25px 2px;
cursor: pointer;
transition-duration: 0.4s;
}
.button:hover {
background-color: #4CAF50;
color: white;
}
</style>
</head>
<body>
<button class="button" type="button" id="btn_start">Start</button>
<button class="button" type="button" id="btn_stop">Stop</button>
<br>
<canvas id="myCanvas" width="640" height="480"></canvas>
<img id="preview"></img>
<script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/3.1.1/socket.io.min.js" integrity="sha512-tXH7Av8en7+/hg0XwBppaCDPmpJhUXbZ+j7lNC4y+ZQpmCZQcgQN6RjkM7Irj1MUW7bZengfuTOqR4RzCC4bnA==" crossorigin="anonymous"></script>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha256-4+XzXVhsDmqanXGHaHvgh1gMQKX40OUvDEBTu8JcmNs=" crossorigin="anonymous"></script>
<script>
var labels = [
"slope_yellow",
"brick_blue",
"brick_green",
"bar_black",
"yellow_eye",
"plate_orange"
]
$(function () {
$("#btn_start").click(() => {
var request = new XMLHttpRequest()
request.open("POST", "/start")
request.send()
})
$("#btn_stop").click(() => {
var request = new XMLHttpRequest()
request.open("POST", "/stop")
request.send()
})
var canvas = document.getElementById('myCanvas')
var context = canvas.getContext('2d')
const socket = io({transports: ['websocket']});
var time = Date.now()
socket.on('frame', async function (msg) {
console.log(msg)
var newTime = Date.now()
console.log(1 / ((newTime - time) / 1000))
time = Date.now()
var imgBlob = new Blob([msg.frame], { type: "image/jpeg" })
var bitmap = await createImageBitmap(imgBlob)
context.clearRect(0, 0, canvas.width, canvas.height)
context.drawImage(bitmap, 0, 0)
context.beginPath()
context.lineWidth = 1
context.strokeStyle = 'black'
for (let obj of msg.objects) {
var rect = {
x: obj.bbox[0],
y: obj.bbox[1],
w: obj.bbox[2] - obj.bbox[0],
h: obj.bbox[3] - obj.bbox[1],
}
context.rect(rect.x, rect.y, rect.w, rect.h)
context.fillText(obj.id + " - " + obj.score.toFixed(2), rect.x + 2, rect.y + rect.h - 2)
}
context.stroke()
})
})
</script>
</body>
</html>