/
ybat.js
1395 lines (1099 loc) · 51.7 KB
/
ybat.js
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(() => {
"use strict"
// Parameters
const saveInterval = 60 // Bbox recovery save in seconds
const fontBaseSize = 30 // Text size in pixels
const fontColor = "#001f3f" // Base font color
const borderColor = "#001f3f" // Base bbox border color
const backgroundColor = "rgba(0, 116, 217, 0.2)" // Base bbox fill color
const markedFontColor = "#FF4136" // Marked bbox font color
const markedBorderColor = "#FF4136" // Marked bbox border color
const markedBackgroundColor = "rgba(255, 133, 27, 0.2)" // Marked bbox fill color
const minBBoxWidth = 5 // Minimal width of bbox
const minBBoxHeight = 5 // Minimal height of bbox
const scrollSpeed = 1.1 // Multiplying factor of wheel speed
const minZoom = 0.1 // Smallest zoom allowed
const maxZoom = 5 // Largest zoom allowed
const edgeSize = 5 // Resize activation area in pixels
const resetCanvasOnChange = true // Whether to return to default position and zoom on image change
const defaultScale = 0.5 // Default zoom level for images. Can be overridden with fittedZoom
const drawCenterX = true // Whether to draw a cross in the middle of bbox
const drawGuidelines = true // Whether to draw guidelines for cursor
const fittedZoom = true // Whether to fit image in the screen by it's largest dimension. Overrides defaultScale
// Main containers
let canvas = null
let images = {}
let classes = {}
let bboxes = {}
const extensions = ["jpg", "jpeg", "png", "JPG", "JPEG", "PNG"]
let currentImage = null
let currentClass = null
let currentBbox = null
let imageListIndex = 0
let classListIndex = 0
// Scaling containers
let scale = defaultScale
let canvasX = 0
let canvasY = 0
let screenX = 0
let screenY = 0
// Mouse container
const mouse = {
x: 0,
y: 0,
realX: 0,
realY: 0,
buttonL: false,
buttonR: false,
startRealX: 0,
startRealY: 0
}
// Prevent context menu on right click - it's used for panning
document.addEventListener("contextmenu", function (e) {
e.preventDefault()
}, false)
const isSupported = () => {
try {
const key = "__some_random_key_1234%(*^()^)___"
localStorage.setItem(key, key)
localStorage.removeItem(key)
return true
} catch (e) {
return false
}
}
// Save bboxes to local storage every X seconds
if (isSupported() === true) {
setInterval(() => {
if (Object.keys(bboxes).length > 0) {
localStorage.setItem("bboxes", JSON.stringify(bboxes))
}
}, saveInterval * 1000)
} else {
alert("Restore function is not supported. If you need it, use Chrome or Firefox instead.")
}
// Start everything
document.onreadystatechange = () => {
if (document.readyState === "complete") {
listenCanvas()
listenCanvasMouse()
listenImageLoad()
listenImageSelect()
listenClassLoad()
listenClassSelect()
listenBboxLoad()
listenBboxSave()
listenBboxVocSave()
listenBboxCocoSave()
listenBboxRestore()
listenKeyboard()
listenImageSearch()
listenImageCrop()
}
}
const listenCanvas = () => {
canvas = new Canvas("canvas", document.getElementById("right").clientWidth, window.innerHeight - 20)
canvas.on("draw", (context) => {
if (currentImage !== null) {
drawImage(context)
drawNewBbox(context)
drawExistingBboxes(context)
drawCross(context)
} else {
drawIntro(context)
}
}).start()
}
const drawImage = (context) => {
context.drawImage(currentImage.object, zoomX(0), zoomY(0), zoom(currentImage.width), zoom(currentImage.height))
}
const drawIntro = (context) => {
setFontStyles(context, false)
context.fillText("USAGE:", zoomX(20), zoomY(50))
context.fillText("1. Load your images (jpg, png). Might be slow if many or big.", zoomX(20), zoomY(100))
context.fillText("2. Load your classes (yolo *.names format).", zoomX(20), zoomY(150))
context.fillText("3. Load or restore, if any, bboxes (zipped yolo/voc/coco files).", zoomX(20), zoomY(200))
context.fillText("NOTES:", zoomX(20), zoomY(300))
context.fillText("1: Images and classes must be loaded before bbox load.", zoomX(20), zoomY(350))
context.fillText("2: Reloading images will RESET BBOXES!", zoomX(20), zoomY(400))
context.fillText("3: Check out README.md for more information.", zoomX(20), zoomY(450))
}
const drawNewBbox = (context) => {
if (mouse.buttonL === true && currentClass !== null && currentBbox === null) {
const width = (mouse.realX - mouse.startRealX)
const height = (mouse.realY - mouse.startRealY)
setBBoxStyles(context, true)
context.strokeRect(zoomX(mouse.startRealX), zoomY(mouse.startRealY), zoom(width), zoom(height))
context.fillRect(zoomX(mouse.startRealX), zoomY(mouse.startRealY), zoom(width), zoom(height))
drawX(context, mouse.startRealX, mouse.startRealY, width, height)
setBboxCoordinates(mouse.startRealX, mouse.startRealY, width, height)
}
}
const drawExistingBboxes = (context) => {
const currentBboxes = bboxes[currentImage.name]
for (let className in currentBboxes) {
currentBboxes[className].forEach(bbox => {
setFontStyles(context, bbox.marked)
context.fillText(className, zoomX(bbox.x), zoomY(bbox.y - 2))
setBBoxStyles(context, bbox.marked)
context.strokeRect(zoomX(bbox.x), zoomY(bbox.y), zoom(bbox.width), zoom(bbox.height))
context.fillRect(zoomX(bbox.x), zoomY(bbox.y), zoom(bbox.width), zoom(bbox.height))
drawX(context, bbox.x, bbox.y, bbox.width, bbox.height)
if (bbox.marked === true) {
setBboxCoordinates(bbox.x, bbox.y, bbox.width, bbox.height)
}
})
}
}
const drawX = (context, x, y, width, height) => {
if (drawCenterX === true) {
const centerX = x + width / 2
const centerY = y + height / 2
context.beginPath()
context.moveTo(zoomX(centerX), zoomY(centerY - 10))
context.lineTo(zoomX(centerX), zoomY(centerY + 10))
context.stroke()
context.beginPath()
context.moveTo(zoomX(centerX - 10), zoomY(centerY))
context.lineTo(zoomX(centerX + 10), zoomY(centerY))
context.stroke()
}
}
const drawCross = (context) => {
if (drawGuidelines === true) {
context.setLineDash([5])
context.beginPath()
context.moveTo(zoomX(mouse.realX), zoomY(0))
context.lineTo(zoomX(mouse.realX), zoomY(currentImage.height))
context.stroke()
context.beginPath()
context.moveTo(zoomX(0), zoomY(mouse.realY))
context.lineTo(zoomX(currentImage.width), zoomY(mouse.realY))
context.stroke()
}
}
const setBBoxStyles = (context, marked) => {
context.setLineDash([])
if (marked === false) {
context.strokeStyle = borderColor
context.fillStyle = backgroundColor
} else {
context.strokeStyle = markedBorderColor
context.fillStyle = markedBackgroundColor
}
}
const setBboxCoordinates = (x, y, width, height) => {
const x2 = x + width
const y2 = y + height
document.getElementById("bboxInformation").innerHTML = `${width}x${height} (${x}, ${y}) (${x2}, ${y2})`
}
const setFontStyles = (context, marked) => {
if (marked === false) {
context.fillStyle = fontColor
} else {
context.fillStyle = markedFontColor
}
context.font = context.font.replace(/\d+px/, `${zoom(fontBaseSize)}px`)
}
const listenCanvasMouse = () => {
canvas.element.addEventListener("wheel", trackWheel, {passive: false})
canvas.element.addEventListener("mousemove", trackPointer)
canvas.element.addEventListener("mousedown", trackPointer)
canvas.element.addEventListener("mouseup", trackPointer)
canvas.element.addEventListener("mouseout", trackPointer)
}
const trackWheel = (event) => {
if (event.deltaY < 0) {
scale = Math.min(maxZoom, scale * scrollSpeed)
} else {
scale = Math.max(minZoom, scale * (1 / scrollSpeed))
}
canvasX = mouse.realX
canvasY = mouse.realY
screenX = mouse.x
screenY = mouse.y
mouse.realX = zoomXInv(mouse.x)
mouse.realY = zoomYInv(mouse.y)
event.preventDefault()
}
const trackPointer = (event) => {
mouse.bounds = canvas.element.getBoundingClientRect()
mouse.x = event.clientX - mouse.bounds.left
mouse.y = event.clientY - mouse.bounds.top
const xx = mouse.realX
const yy = mouse.realY
mouse.realX = zoomXInv(mouse.x)
mouse.realY = zoomYInv(mouse.y)
if (event.type === "mousedown") {
mouse.startRealX = mouse.realX
mouse.startRealY = mouse.realY
if (event.which === 3) {
mouse.buttonR = true
} else if (event.which === 1) {
mouse.buttonL = true
}
} else if (event.type === "mouseup" || event.type === "mouseout") {
if (mouse.buttonL === true && currentImage !== null && currentClass !== null) {
const movedWidth = Math.max((mouse.startRealX - mouse.realX), (mouse.realX - mouse.startRealX))
const movedHeight = Math.max((mouse.startRealY - mouse.realY), (mouse.realY - mouse.startRealY))
if (movedWidth > minBBoxWidth && movedHeight > minBBoxHeight) { // Only add if bbox is big enough
if (currentBbox === null) { // And only when no other bbox is selected
storeNewBbox(movedWidth, movedHeight)
} else { // Bbox was moved or resized - update original data
updateBboxAfterTransform()
}
} else { // (un)Mark a bbox
setBboxMarkedState()
if (currentBbox !== null) { // Bbox was moved or resized - update original data
updateBboxAfterTransform()
}
}
}
mouse.buttonR = false
mouse.buttonL = false
}
moveBbox()
resizeBbox()
changeCursorByLocation()
panImage(xx, yy)
}
const storeNewBbox = (movedWidth, movedHeight) => {
const bbox = {
x: Math.min(mouse.startRealX, mouse.realX),
y: Math.min(mouse.startRealY, mouse.realY),
width: movedWidth,
height: movedHeight,
marked: true,
class: currentClass
}
if (typeof bboxes[currentImage.name] === "undefined") {
bboxes[currentImage.name] = {}
}
if (typeof bboxes[currentImage.name][currentClass] === "undefined") {
bboxes[currentImage.name][currentClass] = []
}
bboxes[currentImage.name][currentClass].push(bbox)
currentBbox = {
bbox: bbox,
index: bboxes[currentImage.name][currentClass].length - 1,
originalX: bbox.x,
originalY: bbox.y,
originalWidth: bbox.width,
originalHeight: bbox.height,
moving: false,
resizing: null
}
}
const updateBboxAfterTransform = () => {
if (currentBbox.resizing !== null) {
if (currentBbox.bbox.width < 0) {
currentBbox.bbox.width = Math.abs(currentBbox.bbox.width)
currentBbox.bbox.x -= currentBbox.bbox.width
}
if (currentBbox.bbox.height < 0) {
currentBbox.bbox.height = Math.abs(currentBbox.bbox.height)
currentBbox.bbox.y -= currentBbox.bbox.height
}
currentBbox.resizing = null
}
currentBbox.bbox.marked = true
currentBbox.originalX = currentBbox.bbox.x
currentBbox.originalY = currentBbox.bbox.y
currentBbox.originalWidth = currentBbox.bbox.width
currentBbox.originalHeight = currentBbox.bbox.height
currentBbox.moving = false
}
const setBboxMarkedState = () => {
if (currentBbox === null || (currentBbox.moving === false && currentBbox.resizing === null)) {
const currentBboxes = bboxes[currentImage.name]
let wasInside = false
let smallestBbox = Number.MAX_SAFE_INTEGER
for (let className in currentBboxes) {
for (let i = 0; i < currentBboxes[className].length; i++) {
const bbox = currentBboxes[className][i]
bbox.marked = false
const endX = bbox.x + bbox.width
const endY = bbox.y + bbox.height
const size = bbox.width * bbox.height
if (mouse.startRealX >= bbox.x && mouse.startRealX <= endX
&& mouse.startRealY >= bbox.y && mouse.startRealY <= endY) {
wasInside = true
if (size < smallestBbox) { // Make sure select the inner if it's inside a bigger one
smallestBbox = size
currentBbox = {
bbox: bbox,
index: i,
originalX: bbox.x,
originalY: bbox.y,
originalWidth: bbox.width,
originalHeight: bbox.height,
moving: false,
resizing: null
}
}
}
}
}
if (wasInside === false) { // No more selected bbox
currentBbox = null
}
}
}
const moveBbox = () => {
if (mouse.buttonL === true && currentBbox !== null) {
const endX = currentBbox.bbox.x + currentBbox.bbox.width
const endY = currentBbox.bbox.y + currentBbox.bbox.height
// Only if pointer inside the bbox
if (mouse.startRealX >= (currentBbox.bbox.x + edgeSize) && mouse.startRealX <= (endX - edgeSize)
&& mouse.startRealY >= (currentBbox.bbox.y + edgeSize) && mouse.startRealY <= (endY - edgeSize)) {
currentBbox.moving = true
}
if (currentBbox.moving === true) {
currentBbox.bbox.x = currentBbox.originalX + (mouse.realX - mouse.startRealX)
currentBbox.bbox.y = currentBbox.originalY + (mouse.realY - mouse.startRealY)
}
}
}
const resizeBbox = () => {
if (mouse.buttonL === true && currentBbox !== null) {
const topLeftX = currentBbox.bbox.x
const topLeftY = currentBbox.bbox.y
const bottomLeftX = currentBbox.bbox.x
const bottomLeftY = currentBbox.bbox.y + currentBbox.bbox.height
const topRightX = currentBbox.bbox.x + currentBbox.bbox.width
const topRightY = currentBbox.bbox.y
const bottomRightX = currentBbox.bbox.x + currentBbox.bbox.width
const bottomRightY = currentBbox.bbox.y + currentBbox.bbox.height
// Get correct corner
if (mouse.startRealX >= (topLeftX - edgeSize) && mouse.startRealX <= (topLeftX + edgeSize)
&& mouse.startRealY >= (topLeftY - edgeSize) && mouse.startRealY <= (topLeftY + edgeSize)) {
currentBbox.resizing = "topLeft"
} else if (mouse.startRealX >= (bottomLeftX - edgeSize) && mouse.startRealX <= (bottomLeftX + edgeSize)
&& mouse.startRealY >= (bottomLeftY - edgeSize) && mouse.startRealY <= (bottomLeftY + edgeSize)) {
currentBbox.resizing = "bottomLeft"
} else if (mouse.startRealX >= (topRightX - edgeSize) && mouse.startRealX <= (topRightX + edgeSize)
&& mouse.startRealY >= (topRightY - edgeSize) && mouse.startRealY <= (topRightY + edgeSize)) {
currentBbox.resizing = "topRight"
} else if (mouse.startRealX >= (bottomRightX - edgeSize) && mouse.startRealX <= (bottomRightX + edgeSize)
&& mouse.startRealY >= (bottomRightY - edgeSize) && mouse.startRealY <= (bottomRightY + edgeSize)) {
currentBbox.resizing = "bottomRight"
}
if (currentBbox.resizing === "topLeft") {
currentBbox.bbox.x = mouse.realX
currentBbox.bbox.y = mouse.realY
currentBbox.bbox.width = currentBbox.originalX + currentBbox.originalWidth - mouse.realX
currentBbox.bbox.height = currentBbox.originalY + currentBbox.originalHeight - mouse.realY
} else if (currentBbox.resizing === "bottomLeft") {
currentBbox.bbox.x = mouse.realX
currentBbox.bbox.y = mouse.realY - (mouse.realY - currentBbox.originalY)
currentBbox.bbox.width = currentBbox.originalX + currentBbox.originalWidth - mouse.realX
currentBbox.bbox.height = mouse.realY - currentBbox.originalY
} else if (currentBbox.resizing === "topRight") {
currentBbox.bbox.x = mouse.realX - (mouse.realX - currentBbox.originalX)
currentBbox.bbox.y = mouse.realY
currentBbox.bbox.width = mouse.realX - currentBbox.originalX
currentBbox.bbox.height = currentBbox.originalY + currentBbox.originalHeight - mouse.realY
} else if (currentBbox.resizing === "bottomRight") {
currentBbox.bbox.x = mouse.realX - (mouse.realX - currentBbox.originalX)
currentBbox.bbox.y = mouse.realY - (mouse.realY - currentBbox.originalY)
currentBbox.bbox.width = mouse.realX - currentBbox.originalX
currentBbox.bbox.height = mouse.realY - currentBbox.originalY
}
}
}
const changeCursorByLocation = () => {
if (currentImage !== null) {
const currentBboxes = bboxes[currentImage.name]
for (let className in currentBboxes) {
for (let i = 0; i < currentBboxes[className].length; i++) {
const bbox = currentBboxes[className][i]
const endX = bbox.x + bbox.width
const endY = bbox.y + bbox.height
if (mouse.realX >= (bbox.x + edgeSize) && mouse.realX <= (endX - edgeSize)
&& mouse.realY >= (bbox.y + edgeSize) && mouse.realY <= (endY - edgeSize)) {
document.body.style.cursor = "pointer"
break
} else {
document.body.style.cursor = "default"
}
}
}
if (currentBbox !== null) {
const topLeftX = currentBbox.bbox.x
const topLeftY = currentBbox.bbox.y
const bottomLeftX = currentBbox.bbox.x
const bottomLeftY = currentBbox.bbox.y + currentBbox.bbox.height
const topRightX = currentBbox.bbox.x + currentBbox.bbox.width
const topRightY = currentBbox.bbox.y
const bottomRightX = currentBbox.bbox.x + currentBbox.bbox.width
const bottomRightY = currentBbox.bbox.y + currentBbox.bbox.height
if (mouse.realX >= (topLeftX + edgeSize) && mouse.realX <= (bottomRightX - edgeSize)
&& mouse.realY >= (topLeftY + edgeSize) && mouse.realY <= (bottomRightY - edgeSize)) {
document.body.style.cursor = "move"
} else if (mouse.realX >= (topLeftX - edgeSize) && mouse.realX <= (topLeftX + edgeSize)
&& mouse.realY >= (topLeftY - edgeSize) && mouse.realY <= (topLeftY + edgeSize)) {
document.body.style.cursor = "nwse-resize"
} else if (mouse.realX >= (bottomLeftX - edgeSize) && mouse.realX <= (bottomLeftX + edgeSize)
&& mouse.realY >= (bottomLeftY - edgeSize) && mouse.realY <= (bottomLeftY + edgeSize)) {
document.body.style.cursor = "nesw-resize"
} else if (mouse.realX >= (topRightX - edgeSize) && mouse.realX <= (topRightX + edgeSize)
&& mouse.realY >= (topRightY - edgeSize) && mouse.realY <= (topRightY + edgeSize)) {
document.body.style.cursor = "nesw-resize"
} else if (mouse.realX >= (bottomRightX - edgeSize) && mouse.realX <= (bottomRightX + edgeSize)
&& mouse.realY >= (bottomRightY - edgeSize) && mouse.realY <= (bottomRightY + edgeSize)) {
document.body.style.cursor = "nwse-resize"
}
}
}
}
const panImage= (xx, yy) => {
if (mouse.buttonR === true) {
canvasX -= mouse.realX - xx
canvasY -= mouse.realY - yy
mouse.realX = zoomXInv(mouse.x)
mouse.realY = zoomYInv(mouse.y)
}
}
const zoom = (number) => {
return Math.floor(number * scale)
}
const zoomX = (number) => {
return Math.floor((number - canvasX) * scale + screenX)
}
const zoomY = (number) => {
return Math.floor((number - canvasY) * scale + screenY)
}
const zoomXInv = (number) => {
return Math.floor((number - screenX) * (1 / scale) + canvasX)
}
const zoomYInv = (number) => {
return Math.floor((number - screenY) * (1 / scale) + canvasY)
}
const listenImageLoad = () => {
document.getElementById("images").addEventListener("change", (event) => {
const imageList = document.getElementById("imageList")
const files = event.target.files
if (files.length > 0) {
resetImageList()
document.body.style.cursor = "wait"
for (let i = 0; i < files.length; i++) {
const nameParts = files[i].name.split(".")
if (extensions.indexOf(nameParts[nameParts.length - 1]) !== -1) {
images[files[i].name] = {
meta: files[i],
index: i
}
const option = document.createElement("option")
option.value = files[i].name
option.innerHTML = files[i].name
if (i === 0) {
option.selected = true
}
imageList.appendChild(option)
}
}
const imageArray = Object.keys(images)
let async = imageArray.length
for (let image in images) {
const reader = new FileReader()
reader.addEventListener("load", () => {
const imageObject = new Image()
imageObject.addEventListener("load", (event) => {
images[image].width = event.target.width
images[image].height = event.target.height
if (--async === 0) {
document.body.style.cursor = "default"
setCurrentImage(images[imageArray[0]])
if (Object.keys(classes).length > 0) {
document.getElementById("bboxes").disabled = false
document.getElementById("restoreBboxes").disabled = false
}
}
})
imageObject.src = reader.result
})
reader.readAsDataURL(images[image].meta)
}
}
})
}
const resetImageList = () => {
const imageList = document.getElementById("imageList")
imageList.innerHTML = ""
images = {}
bboxes = {}
currentImage = null
}
const setCurrentImage = (image) => {
if (resetCanvasOnChange === true) {
resetCanvasPlacement()
}
if (fittedZoom === true) {
fitZoom(image)
}
const reader = new FileReader()
reader.addEventListener("load", () => {
const dataUrl = reader.result
const imageObject = new Image()
imageObject.addEventListener("load", () => {
currentImage = {
name: image.meta.name,
object: imageObject,
width: image.width,
height: image.height
}
})
imageObject.src = dataUrl
document.getElementById("imageInformation")
.innerHTML = `${image.width}x${image.height}, ${formatBytes(image.meta.size)}`
})
reader.readAsDataURL(image.meta)
if (currentBbox !== null) {
currentBbox.bbox.marked = false // We unmark via reference
currentBbox = null // and the we delete
}
}
const fitZoom = (image) => {
if (image.width > image.height) {
scale = canvas.width / image.width
} else {
scale = canvas.height / image.height
}
}
const formatBytes = (bytes, decimals) => {
if (bytes === 0) {
return "0 Bytes"
}
const k = 1024
const dm = decimals || 2
const sizes = ["Bytes", "KB", "MB"]
const i = Math.floor(Math.log(bytes) / Math.log(k))
return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + " " + sizes[i]
}
const listenImageSelect = () => {
const imageList = document.getElementById("imageList")
imageList.addEventListener("change", () => {
imageListIndex = imageList.selectedIndex
setCurrentImage(images[imageList.options[imageListIndex].innerHTML])
})
}
const listenClassLoad = () => {
const classesElement = document.getElementById("classes")
classesElement.addEventListener("click", () => {
classesElement.value = null
})
classesElement.addEventListener("change", (event) => {
const files = event.target.files
if (files.length > 0) {
resetClassList()
const nameParts = files[0].name.split(".")
if (nameParts[nameParts.length - 1] === "txt") {
const reader = new FileReader()
reader.addEventListener("load", () => {
const lines = reader.result
const rows = lines.split(/[\r\n]+/)
if (rows.length > 0) {
const classList = document.getElementById("classList")
for (let i = 0; i < rows.length; i++) {
rows[i] = rows[i].trim()
if (rows[i] !== "") {
classes[rows[i]] = i
const option = document.createElement("option")
option.value = i
option.innerHTML = rows[i]
if (i === 0) {
option.selected = true
currentClass = rows[i]
}
classList.appendChild(option)
}
}
setCurrentClass()
if (Object.keys(images).length > 0) {
document.getElementById("bboxes").disabled = false
document.getElementById("restoreBboxes").disabled = false
}
}
})
reader.readAsText(files[0])
}
}
})
}
const resetClassList = () => {
document.getElementById("classList").innerHTML = ""
classes = {}
currentClass = null
}
const setCurrentClass = () => {
const classList = document.getElementById("classList")
currentClass = classList.options[classList.selectedIndex].text
if (currentBbox !== null) {
currentBbox.bbox.marked = false // We unmark via reference
currentBbox = null // and the we delete
}
}
const listenClassSelect = () => {
const classList = document.getElementById("classList")
classList.addEventListener("change", () => {
classListIndex = classList.selectedIndex
setCurrentClass()
})
}
const listenBboxLoad = () => {
const bboxesElement = document.getElementById("bboxes")
bboxesElement.addEventListener("click", () => {
bboxesElement.value = null
})
bboxesElement.addEventListener("change", (event) => {
const files = event.target.files
if (files.length > 0) {
resetBboxes()
for (let i = 0; i < files.length; i++) {
const reader = new FileReader()
const extension = files[i].name.split(".").pop()
reader.addEventListener("load", () => {
if (extension === "txt" || extension === "xml" || extension === "json") {
storeBbox(files[i].name, reader.result)
} else {
const zip = new JSZip()
zip.loadAsync(reader.result)
.then((result) => {
for (let filename in result.files) {
result.file(filename).async("string")
.then((text) => {
storeBbox(filename, text)
})
}
})
}
})
if (extension === "txt" || extension === "xml" || extension === "json") {
reader.readAsText(files[i])
} else {
reader.readAsArrayBuffer(event.target.files[i])
}
}
}
})
}
const resetBboxes = () => {
bboxes = {}
}
const storeBbox = (filename, text) => {
let image = null
let bbox = null
const extension = filename.split(".").pop()
if (extension === "txt" || extension === "xml") {
for (let i = 0; i < extensions.length; i++) {
const imageName = filename.replace(`.${extension}`, `.${extensions[i]}`)
if (typeof images[imageName] !== "undefined") {
image = images[imageName]
if (typeof bboxes[imageName] === "undefined") {
bboxes[imageName] = {}
}
bbox = bboxes[imageName]
if (extension === "txt") {
const rows = text.split(/[\r\n]+/)
for (let i = 0; i < rows.length; i++) {
const cols = rows[i].split(" ")
cols[0] = parseInt(cols[0])
for (let className in classes) {
if (classes[className] === cols[0]) {
if (typeof bbox[className] === "undefined") {
bbox[className] = []
}
// Reverse engineer actual position and dimensions from yolo format
const width = cols[3] * image.width
const x = cols[1] * image.width - width * 0.5
const height = cols[4] * image.height
const y = cols[2] * image.height - height * 0.5
bbox[className].push({
x: Math.floor(x),
y: Math.floor(y),
width: Math.floor(width),
height: Math.floor(height),
marked: false,
class: className
})
break
}
}
}
} else if (extension === "xml") {
const parser = new DOMParser()
const xmlDoc = parser.parseFromString(text, "text/xml")
const objects = xmlDoc.getElementsByTagName("object")
for (let i = 0; i < objects.length; i++) {
const objectName = objects[i].getElementsByTagName("name")[0].childNodes[0].nodeValue
for (let className in classes) {
if (className === objectName) {
if (typeof bbox[className] === "undefined") {
bbox[className] = []
}
const bndBox = objects[i].getElementsByTagName("bndbox")[0]
const bndBoxX = bndBox.getElementsByTagName("xmin")[0].childNodes[0].nodeValue
const bndBoxY = bndBox.getElementsByTagName("ymin")[0].childNodes[0].nodeValue
const bndBoxMaxX = bndBox.getElementsByTagName("xmax")[0].childNodes[0].nodeValue
const bndBoxMaxY = bndBox.getElementsByTagName("ymax")[0].childNodes[0].nodeValue
bbox[className].push({
x: parseInt(bndBoxX),
y: parseInt(bndBoxY),
width: parseInt(bndBoxMaxX) - parseInt(bndBoxX),
height: parseInt(bndBoxMaxY) - parseInt(bndBoxY),
marked: false,
class: className
})
break
}
}
}
}
}
}
} else {
const json = JSON.parse(text)
for (let i = 0; i < json.annotations.length; i++) {
let imageName = null
let categoryName = null
for (let j = 0; j < json.images.length; j++) {
if (json.annotations[i].image_id === json.images[j].id) {
imageName = json.images[j].file_name
if (typeof images[imageName] !== "undefined") {
image = images[imageName]
if (typeof bboxes[imageName] === "undefined") {
bboxes[imageName] = {}
}
bbox = bboxes[imageName]
break
}
}
}
for (let j = 0; j < json.categories.length; j++) {
if (json.annotations[i].category_id === json.categories[j].id) {
categoryName = json.categories[j].name
break
}
}
for (let className in classes) {
if (className === categoryName) {
if (typeof bbox[className] === "undefined") {
bbox[className] = []
}
const bboxX = json.annotations[i].bbox[0]
const bboxY = json.annotations[i].bbox[1]
const bboxWidth = json.annotations[i].bbox[2]
const bboxHeight = json.annotations[i].bbox[3]
bbox[className].push({
x: bboxX,
y: bboxY,
width: bboxWidth,
height: bboxHeight,
marked: false,