DASH-Lab.github.io/Foren_ins.html at master_ · DASH-Lab/DASH-Lab.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>DASH LAB - Deepfake Inspector</title>
    <!-- External Libraries -->
    <script src="https://cdn.tailwindcss.com"></script>
    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" rel="stylesheet">

    <!-- Custom Shared Resources -->
    <link rel="stylesheet" href="css/style.css">
    <script src="js/common.js"></script>
</head>
<body class="bg-gray-50 flex flex-col min-h-screen">
    <div class="container mx-auto px-4 py-8 max-w-6xl flex-grow">

        <div class="section">
            <div class="dash-card-dataset">
                <!-- Header Actions -->
                <div class="flex flex-col sm:flex-row justify-between items-start sm:items-center gap-4 mb-6">
                    <a href="Datasets.html" class="inline-flex items-center gap-2 text-blue-700 font-bold hover:text-blue-900 transition-colors">
                        <i class="fas fa-arrow-left"></i> Back to Datasets
                    </a>
                    <div class="flex items-center gap-2 h-9">
                        <span id="lock-status" class="text-[10px] font-bold uppercase py-1.5 px-3 rounded-full bg-green-100 text-green-700 hidden border border-green-200">
                            <i class="fas fa-lock mr-1"></i> Area Locked
                        </span>
                        <button id="reset-btn" class="forensic-btn btn-danger py-1 px-3 text-xs h-full" style="display: none;">
                            <i class="fas fa-redo"></i> Reset Station
                        </button>
                    </div>
                </div>

                <h3 class="dash-header-dataset">🔍 Deepfake Inspector (Beta)</h3>

                <div class="grid grid-cols-1 lg:grid-cols-12 gap-8">

                    <!-- Left Column: Tool Interface -->
                    <div class="lg:col-span-8 xl:col-span-9">
                        <div class="canvas-container shadow-inner" id="tool-viewport">
                            <div id="selection-box" class="selection-box"></div>
                            <canvas id="main-canvas"></canvas>
                            <canvas id="lens-preview" width="256" height="256"></canvas>

                            <!-- Empty State Message -->
                            <div id="empty-state">
                                <i class="fas fa-cloud-upload-alt"></i>
                                <p class="text-gray-300 font-medium mb-1 text-lg text-center">Ready for Analysis</p>
                                <p class="text-gray-500 text-sm text-center">Upload or Drag & Drop an image</p>
                            </div>
                        </div>
                    </div>

                    <!-- Right Column: Controls -->
                    <div class="lg:col-span-4 xl:col-span-3">
                        <div class="flex flex-col gap-5">

                            <!-- 1. Selection -->
                            <div class="bg-white p-5 rounded-xl border border-gray-100 shadow-sm">
                                <label class="block text-xs font-bold text-gray-400 uppercase tracking-wider mb-3">1. Source Image</label>
                                <label for="file-upload" class="forensic-btn btn-primary sidebar-btn">
                                    <i class="fas fa-file-image"></i> Select File
                                </label>
                                <input type="file" id="file-upload" accept="image/*" class="hidden">
                                <div id="file-meta" class="mt-3 text-[11px] text-gray-500 hidden italic">
                                    Res: <span id="meta-res" class="font-bold text-gray-700">---</span>
                                </div>
                            </div>

                            <!-- 2. Analysis Mode -->
                            <div class="bg-white p-5 rounded-xl border border-gray-100 shadow-sm">
                                <label class="block text-xs font-bold text-gray-400 uppercase tracking-wider mb-3">2. Analysis Mode</label>

                                <div class="flex items-center justify-between p-3 bg-gray-50 rounded-lg mb-4">
                                    <div class="flex flex-col justify-center h-10 overflow-hidden">
                                        <span id="mode-title" class="text-sm font-bold leading-tight">---</span>
                                        <span id="mode-subtitle" class="text-[10px] font-black uppercase tracking-tighter">---</span>
                                    </div>
                                    <label class="switch">
                                        <input type="checkbox" id="mode-toggle">
                                        <span class="slider"></span>
                                    </label>
                                </div>

                                <div class="space-y-2">
                                    <div class="flex justify-between text-[11px] font-bold text-gray-500">
                                        <span>MAGNIFICATION</span>
                                        <span id="zoom-val" class="text-blue-600 font-black">4x</span>
                                    </div>
                                    <input type="range" id="zoom-slider" min="2" max="10" step="1" value="4" class="w-full h-1.5 bg-gray-200 rounded-lg appearance-none cursor-pointer accent-blue-600">
                                </div>
                            </div>

                            <!-- User Manual -->
                            <div class="bg-gray-50 rounded-xl p-5 border border-transparent">
                                <h4 class="text-[10px] font-bold text-gray-400 uppercase tracking-widest mb-4">Forensic Guide</h4>
                                <div class="space-y-5">
                                    <div class="flex items-start gap-3">
                                        <div class="mt-0.5 text-blue-600 flex-shrink-0"><i class="fas fa-search-plus text-sm"></i></div>
                                        <div>
                                            <p class="text-[11px] font-bold text-gray-700">Standard View</p>
                                            <p class="text-[10px] text-gray-500 leading-normal mt-0.5">Checked (ON): Check for unnatural blurring or "ghosting" around edges.</p>
                                        </div>
                                    </div>
                                    <div class="flex items-start gap-3">
                                        <div class="mt-0.5 text-orange-500 flex-shrink-0"><i class="fas fa-fire text-sm"></i></div>
                                        <div>
                                            <p class="text-[11px] font-bold text-gray-700">Heat Map Filter</p>
                                            <p class="text-[10px] text-gray-500 leading-normal mt-0.5">Unchecked (OFF): Amplifies sensor noise to find mismatched pixel patterns.</p>
                                        </div>
                                    </div>
                                    <div class="flex items-start gap-3">
                                        <div class="mt-0.5 text-green-600 flex-shrink-0"><i class="fas fa-expand-arrows-alt text-sm"></i></div>
                                        <div>
                                            <p class="text-[11px] font-bold text-gray-700">Magnification</p>
                                            <p class="text-[10px] text-gray-500 leading-normal mt-0.5">Adjust the zoom power (2x to 10x) for deep pixel inspection.</p>
                                        </div>
                                    </div>
                                </div>
                            </div>

                            <!-- 3. Actions -->
                            <div class="bg-white p-5 rounded-xl border border-gray-100 shadow-sm">
                                <button id="snapshot-btn" class="forensic-btn btn-secondary sidebar-btn" disabled>
                                    <i class="fas fa-camera"></i> Save Snapshot
                                </button>
                                <p class="text-[10px] text-gray-400 mt-2 text-center font-medium italic">Click image to lock area.</p>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <script>
        const uploadInput = document.getElementById('file-upload');
        const mainCanvas = document.getElementById('main-canvas');
        const lensPreview = document.getElementById('lens-preview');
        const modeToggle = document.getElementById('mode-toggle');
        const modeTitle = document.getElementById('mode-title');
        const modeSubtitle = document.getElementById('mode-subtitle');
        const zoomSlider = document.getElementById('zoom-slider');
        const zoomValDisplay = document.getElementById('zoom-val');
        const emptyState = document.getElementById('empty-state');
        const viewport = document.getElementById('tool-viewport');
        const selectionBox = document.getElementById('selection-box');
        const snapshotBtn = document.getElementById('snapshot-btn');
        const resetBtn = document.getElementById('reset-btn');
        const lockStatus = document.getElementById('lock-status');

        const ctx = mainCanvas.getContext('2d');
        const previewCtx = lensPreview.getContext('2d');

        let showOriginal = false;
        let imageLoaded = false;
        let isLocked = false;
        let zoomFactor = 4;
        let lastX = 0, lastY = 0;
        let lastClientX = 0, lastClientY = 0;

        // FIXED Label Logic: Clean, non-shifting labels
        function updateStatusUI() {
            if (modeToggle.checked) {
                modeTitle.textContent = "Original View";
                modeTitle.className = "text-sm font-bold leading-tight text-gray-600";
                modeSubtitle.textContent = "NO FILTER";
                modeSubtitle.className = "text-[10px] font-black uppercase tracking-tighter text-gray-400";
            } else {
                modeTitle.textContent = "Histogram Active";
                modeTitle.className = "text-sm font-bold leading-tight text-blue-600";
                modeSubtitle.textContent = "HEAT MAP";
                modeSubtitle.className = "text-[10px] font-black uppercase tracking-tighter text-orange-500";
            }
        }
        updateStatusUI();

        modeToggle.addEventListener('change', () => {
            showOriginal = modeToggle.checked;
            updateStatusUI();
            if(imageLoaded) updateLens();
        });

        zoomSlider.addEventListener('input', (e) => {
            zoomFactor = parseInt(e.target.value);
            zoomValDisplay.textContent = `${zoomFactor}x`;
            if(imageLoaded) updateLens();
        });

        // Mouse Tracker logic
        viewport.addEventListener('mousemove', (e) => {
            if (!imageLoaded || isLocked) return;
            const rect = mainCanvas.getBoundingClientRect();
            const mouseX = e.clientX - rect.left;
            const mouseY = e.clientY - rect.top;
            if (mouseX < 0 || mouseX > mainCanvas.width || mouseY < 0 || mouseY > mainCanvas.height) {
                lensPreview.style.display = 'none'; selectionBox.style.display = 'none'; return;
            }
            updateLens(mouseX, mouseY, e.clientX, e.clientY);
        });

        // Mobile Touch logic
        function handleTouch(e) {
            if (!imageLoaded || isLocked) return;
            e.preventDefault();
            const touch = e.touches[0];
            const rect = mainCanvas.getBoundingClientRect();
            const touchX = touch.clientX - rect.left;
            const touchY = touch.clientY - rect.top;
            if (touchX < 0 || touchX > mainCanvas.width || touchY < 0 || touchY > mainCanvas.height) return;
            updateLens(touchX, touchY, touch.clientX, touch.clientY);
        }
        viewport.addEventListener('touchstart', handleTouch, { passive: false });
        viewport.addEventListener('touchmove', handleTouch, { passive: false });

        viewport.addEventListener('click', (e) => {
            if (!imageLoaded) return;
            isLocked = !isLocked;
            viewport.classList.toggle('is-locked', isLocked);
            selectionBox.classList.toggle('locked', isLocked);
            lockStatus.classList.toggle('hidden', !isLocked);
        });

        resetBtn.addEventListener('click', () => {
            ctx.clearRect(0, 0, mainCanvas.width, mainCanvas.height);
            mainCanvas.width = 0; mainCanvas.height = 0;
            emptyState.style.display = 'flex'; resetBtn.style.display = 'none';
            snapshotBtn.disabled = true; document.getElementById('file-meta').classList.add('hidden');
            selectionBox.style.display = 'none'; lensPreview.style.display = 'none';
            isLocked = false; imageLoaded = false;
            viewport.classList.remove('is-locked'); selectionBox.classList.remove('locked');
            lockStatus.classList.add('hidden');
        });

        function processImage(file) {
            if (!file) return;
            const reader = new FileReader();
            reader.onload = (event) => {
                const img = new Image();
                img.onload = () => {
                    const containerWidth = viewport.clientWidth;
                    const containerHeight = viewport.clientHeight;
                    let width = img.width; let height = img.height;
                    if (width > containerWidth) { height *= (containerWidth / width); width = containerWidth; }
                    if (height > containerHeight) { width *= (containerHeight / height); height = containerHeight; }
                    mainCanvas.width = width; mainCanvas.height = height;
                    ctx.drawImage(img, 0, 0, width, height);
                    document.getElementById('meta-res').textContent = `${img.width}x${img.height}`;
                    document.getElementById('file-meta').classList.remove('hidden');
                    emptyState.style.display = 'none'; resetBtn.style.display = 'inline-flex';
                    snapshotBtn.disabled = false; imageLoaded = true;
                };
                img.src = event.target.result;
            };
            reader.readAsDataURL(file);
        }

        uploadInput.addEventListener('change', (e) => processImage(e.target.files[0]));
        viewport.addEventListener('dragover', (e) => { e.preventDefault(); viewport.classList.add('drag-active'); });
        viewport.addEventListener('dragleave', () => viewport.classList.remove('drag-active'));
        viewport.addEventListener('drop', (e) => { e.preventDefault(); viewport.classList.remove('drag-active'); processImage(e.dataTransfer.files[0]); });

        snapshotBtn.addEventListener('click', (e) => {
            e.stopPropagation();
            const link = document.createElement('a');
            link.download = `dash_heat_analysis_${Date.now()}.png`;
            link.href = lensPreview.toDataURL(); link.click();
        });

        function updateLens(mouseX = lastX, mouseY = lastY, clientX = lastClientX, clientY = lastClientY) {
            if (!imageLoaded) return;
            selectionBox.style.display = 'block'; lensPreview.style.display = 'block';

            const cropSize = 256 / zoomFactor;
            lastX = mouseX; lastY = mouseY; lastClientX = clientX; lastClientY = clientY;

            if (clientX && clientY) {
                const rect = viewport.getBoundingClientRect();
                lensPreview.style.left = `${clientX - rect.left - 128}px`;
                lensPreview.style.top = `${clientY - rect.top - 128}px`;
            }

            selectionBox.style.width = `${cropSize}px`; selectionBox.style.height = `${cropSize}px`;
            const boxX = mouseX - (cropSize / 2); const boxY = mouseY - (cropSize / 2);
            selectionBox.style.left = `${boxX + mainCanvas.offsetLeft}px`; selectionBox.style.top = `${boxY + mainCanvas.offsetTop}px`;

            const cropX = Math.max(0, Math.min(mouseX - cropSize / 2, mainCanvas.width - cropSize));
            const cropY = Math.max(0, Math.min(mouseY - cropSize / 2, mainCanvas.height - cropSize));

            if (showOriginal) {
                previewCtx.clearRect(0, 0, lensPreview.width, lensPreview.height);
                previewCtx.imageSmoothingEnabled = false;
                previewCtx.drawImage(mainCanvas, cropX, cropY, cropSize, cropSize, 0, 0, 256, 256);
            } else {
                const imageData = ctx.getImageData(cropX, cropY, cropSize, cropSize);
                const data = imageData.data;
                const equalize = (channel) => {
                    const histogram = new Array(256).fill(0);
                    for (let i = 0; i < channel.length; i++) histogram[channel[i]]++;
                    const cdf = new Array(256).fill(0); cdf[0] = histogram[0];
                    for (let i = 1; i < 256; i++) cdf[i] = cdf[i - 1] + histogram[i];
                    const cdfMin = cdf.find(v => v > 0) || 0; const total = channel.length;
                    return channel.map(v => (total === cdfMin) ? v : Math.round(((cdf[v] - cdfMin) / (total - cdfMin)) * 255));
                };
                const r = [], g = [], b = [];
                for (let i = 0; i < data.length; i += 4) { r.push(data[i]); g.push(data[i + 1]); b.push(data[i + 2]); }
                const rEq = equalize(r), gEq = equalize(g), bEq = equalize(b);
                for (let i = 0; i < data.length; i += 4) { data[i] = rEq[i/4]; data[i+1] = gEq[i/4]; data[i+2] = bEq[i/4]; }
                const tempCanvas = document.createElement('canvas'); tempCanvas.width = cropSize; tempCanvas.height = cropSize;
                tempCanvas.getContext('2d').putImageData(new ImageData(data, cropSize, cropSize), 0, 0);
                previewCtx.clearRect(0, 0, lensPreview.width, lensPreview.height); previewCtx.imageSmoothingEnabled = false;
                previewCtx.drawImage(tempCanvas, 0, 0, cropSize, cropSize, 0, 0, 256, 256);
            }
        }

        viewport.addEventListener('mouseleave', () => { if (!isLocked) { lensPreview.style.display = 'none'; selectionBox.style.display = 'none'; } });
    </script>
</body>
</html>