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<!DOCTYPE html>
<html lang="zh-TW">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>描線工坊 VectorLine - 雷切線條生成器 (開源免費/本地運算)</title>
<!-- Workshop Vector Favicon (amber mono) -->
<link rel="icon" type="image/svg+xml" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><linearGradient id=%22g%22 x1=%220%25%22 y1=%220%25%22 x2=%22100%25%22 y2=%22100%25%22><stop offset=%220%25%22 stop-color=%22%23f59e0b%22/><stop offset=%22100%25%22 stop-color=%22%23b45309%22/></linearGradient><circle cx=%2250%22 cy=%2250%22 r=%2240%22 fill=%22none%22 stroke=%22url(%23g)%22 stroke-width=%2212%22/><path d=%22M30 50 L70 50 M50 30 L50 70%22 stroke=%22%23b45309%22 stroke-width=%2210%22 stroke-linecap=%22round%22/></svg>">
<!-- Google Fonts -->
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Archivo:wght@500;600;700;800;900&display=swap" rel="stylesheet">
<!-- CSS Stylesheet -->
<link rel="stylesheet" href="/src/style.css">
</head>
<body>
<!-- Loading Screen for OpenCV.js compilation -->
<div id="loading-screen" class="loading-screen">
<div class="loader-container">
<div class="glow-ring"></div>
<div class="loader-spinner"></div>
<h2>描線工坊</h2>
<p id="loading-text">正在載入 OpenCV.js 影像處理引擎...</p>
<div class="progress-bar-container">
<div class="progress-bar-fill"></div>
</div>
</div>
</div>
<div class="app-container is-empty">
<!-- Header -->
<header class="app-header">
<div class="header-left">
<div class="logo-area">
<svg class="logo-svg" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
<linearGradient id="g-logo" x1="0%" y1="0%" x2="100%" y2="100%">
<stop offset="0%" stop-color="#f59e0b" />
<stop offset="100%" stop-color="#b45309" />
</linearGradient>
<circle cx="50" cy="50" r="40" fill="none" stroke="url(#g-logo)" stroke-width="12" />
<path d="M30 50 L70 50 M50 30 L50 70" stroke="url(#g-logo)" stroke-width="10" stroke-linecap="round" />
</svg>
<h1>描線工坊<span class="brand-latin">VectorLine</span></h1>
<span class="badge">開源網頁版</span>
</div>
<p class="subtitle">完全開源、免費、瀏覽器本地運算，一鍵將圖片轉換為雷雕/雷切專用 SVG 線條路徑</p>
</div>
<div class="header-right">
<button id="btn-help" class="btn-help" title="使用技巧與參數說明">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
<circle cx="12" cy="12" r="10"></circle>
<path d="M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3"></path>
<line x1="12" y1="17" x2="12.01" y2="17"></line>
</svg>
<span>使用技巧</span>
</button>
<button id="btn-theme-toggle" class="btn-theme-toggle" title="切換深淺色模式">
<!-- Sun icon -->
<svg class="sun-icon hidden" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<circle cx="12" cy="12" r="5"></circle>
<line x1="12" y1="1" x2="12" y2="3"></line>
<line x1="12" y1="21" x2="12" y2="23"></line>
<line x1="4.22" y1="4.22" x2="5.64" y2="5.64"></line>
<line x1="18.36" y1="18.36" x2="19.78" y2="19.78"></line>
<line x1="1" y1="12" x2="3" y2="12"></line>
<line x1="21" y1="12" x2="23" y2="12"></line>
<line x1="4.22" y1="19.78" x2="5.64" y2="18.36"></line>
<line x1="18.36" y1="5.64" x2="19.78" y2="4.22"></line>
</svg>
<!-- Moon icon -->
<svg class="moon-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"></path>
</svg>
</button>
</div>
</header>
<!-- Main Workspace -->
<main class="app-main">
<!-- Sidebar Panel: Controls & Settings -->
<aside class="app-sidebar">
<!-- Step 1: Upload Section -->
<div class="upload-section card">
<div class="group-label">
1. 上傳圖片
<span class="info-icon tooltip-right" data-tooltip="支援格式：PNG, JPG, WebP, AVIF, BMP, GIF 等">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round">
<circle cx="12" cy="12" r="10"></circle>
<line x1="12" y1="16" x2="12" y2="12"></line>
<line x1="12" y1="8" x2="12.01" y2="8"></line>
</svg>
</span>
</div>
<div id="drop-zone" class="drop-zone">
<input type="file" id="file-input" accept="image/*" class="file-input">
<div class="drop-zone-content">
<svg class="upload-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4M17 8l-5-5-5 5M12 3v12"/>
</svg>
<p class="primary-text">拖曳圖案至此或<span>點擊瀏覽</span></p>
<p class="secondary-text">支援 PNG, JPG, WebP 格式</p>
</div>
<div id="upload-preview-container" class="upload-preview-container hidden">
<img id="upload-preview" alt="上傳的圖片">
<button id="btn-remove-image" class="btn-remove" title="移除圖片">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<line x1="18" y1="6" x2="6" y2="18"></line>
<line x1="6" y1="6" x2="18" y2="18"></line>
</svg>
</button>
</div>
</div>
<!-- Sample Images (only shown in onboarding/empty state) -->
<div class="onboarding-samples">
<p class="samples-title">無可用檔案？點擊快速試用樣品：</p>
<div class="samples-grid">
<button class="sample-card" id="btn-sample-1" type="button">
<div class="sample-icon">✍️</div>
<div class="sample-info">
<span class="sample-name">手繪線稿</span>
<span class="sample-desc">測試雙邊去噪與對比度</span>
</div>
</button>
<button class="sample-card" id="btn-sample-2" type="button">
<div class="sample-icon">🤖</div>
<div class="sample-info">
<span class="sample-name">電子線條</span>
<span class="sample-desc">測試乾淨的二值提取</span>
</div>
</button>
</div>
</div>
</div>
<!-- Controls panel (disabled when no image is uploaded) -->
<div id="settings-group" class="disabled-controls settings-scroller">
<!-- Presets and Reset -->
<div class="settings-card card">
<div class="card-header-static">快速參數預設</div>
<div class="preset-buttons-group">
<button id="btn-preset-photo" class="btn-preset">手繪相片最佳化</button>
<button id="btn-preset-digital" class="btn-preset">電子圖檔最佳化</button>
<button id="btn-reset-defaults" class="btn-reset" title="重設為預設值">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" style="width:16px;height:16px;">
<path d="M23 4v6h-6M1 20v-6h6"/>
<path d="M3.51 9a9 9 0 0 1 14.85-3.36L23 10M1 14l4.64 4.36A9 9 0 0 0 20.49 15"/>
</svg>
</button>
</div>
</div>
<!-- Main Settings Card with Tabs -->
<div class="settings-card-tabs card">
<div class="settings-tabs-bar">
<button type="button" class="tab-trigger active" data-tab="tab-filters">濾波預處理</button>
<button type="button" class="tab-trigger" data-tab="tab-binarize">二值化</button>
<button type="button" class="tab-trigger" data-tab="tab-vector">向量優化</button>
<button type="button" class="tab-trigger" data-tab="tab-export">輸出規格</button>
</div>
<div class="tab-contents-container">
<!-- Tab 1: Filters & Preprocessing -->
<div id="tab-filters" class="settings-tab-content active">
<div class="slider-wrapper">
<div class="slider-header">
<span class="label-with-tooltip">
雙邊濾波強度 (Denoise)
<span class="info-icon" data-tooltip="去除背景雜訊與紙張紋理，保留主線條邊緣。建議手繪相片設為 5~8，電子圖檔設為 0。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<span id="val-denoise" class="slider-val">5</span>
</div>
<input type="range" id="slider-denoise" min="0" max="15" step="1" value="5">
</div>
<div class="slider-wrapper">
<div class="slider-header">
<span class="label-with-tooltip">
影像亮度 (Brightness)
<span class="info-icon" data-tooltip="調高亮度有助於去除陰影、紙張摺痕與背光產生的灰暗雜點；調低可增強灰暗或過淡的線條。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<span id="val-brightness" class="slider-val">0</span>
</div>
<input type="range" id="slider-brightness" min="-100" max="100" step="5" value="0">
</div>
<div class="slider-wrapper">
<div class="slider-header">
<span class="label-with-tooltip">
影像對比 (Contrast)
<span class="info-icon" data-tooltip="增強線條與背景對比度，拉大黑白分界，有助於分離模糊的手繪鉛筆線條。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<span id="val-contrast" class="slider-val">0</span>
</div>
<input type="range" id="slider-contrast" min="-100" max="100" step="5" value="0">
</div>
<div class="slider-wrapper">
<div class="slider-header">
<span class="label-with-tooltip">
亮部去背 (White Cutoff)
<span class="info-icon" data-tooltip="把亮度高於此值的區域直接壓成純白，快速清除淺色紙張紋理、陰影與背景雜點。數值越低清得越多；255 為關閉。適合淺色/白底圖片。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<span id="val-white-cutoff" class="slider-val">關閉</span>
</div>
<input type="range" id="slider-white-cutoff" min="150" max="255" step="5" value="255">
</div>
<div class="checkbox-wrapper">
<label class="checkbox-label">
<input type="checkbox" id="checkbox-invert-binary">
<span class="label-with-tooltip">
反轉黑白顏色 (Invert Colors)
<span class="info-icon" data-tooltip="適用於黑底白字或深色背景圖片。勾選可對調影像的黑白提取邏輯。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
</label>
</div>
</div>
<!-- Tab 2: Binarization -->
<div id="tab-binarize" class="settings-tab-content">
<div class="slider-wrapper">
<div class="slider-header">
<span class="label-with-tooltip">
線條細緻度 (Block Size)
<span class="info-icon" data-tooltip="自適應二值化的局部區域大小。數值越小線條越細，越大線條越粗（適用於實心色塊）。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<span id="val-blocksize" class="slider-val">11</span>
</div>
<input type="range" id="slider-blocksize" min="3" max="51" step="2" value="11">
</div>
<div class="slider-wrapper">
<div class="slider-header">
<span class="label-with-tooltip">
臨界分界偏置 (C Constant)
<span class="info-icon" data-tooltip="微調線條粗細與周圍背景干擾。數值越大線條越細、雜訊越少；數值越小線條越粗、細節越多。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<span id="val-c-constant" class="slider-val">2</span>
</div>
<input type="range" id="slider-c-constant" min="-10" max="15" step="1" value="2">
</div>
<div class="slider-wrapper">
<div class="slider-header">
<span class="label-with-tooltip">
形態學去雜點 (Morphology)
<span class="info-icon" data-tooltip="透過膨脹/侵蝕運算去除細小椒鹽噪點，並填補主線條間的微小斷裂。0 表示關閉。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<span id="val-morph-clean" class="slider-val">0</span>
</div>
<input type="range" id="slider-morph-clean" min="0" max="5" step="1" value="0">
</div>
</div>
<!-- Tab 3: Vector Optimization -->
<div id="tab-vector" class="settings-tab-content">
<div class="control-subgroup">
<span class="subgroup-label label-with-tooltip">
雷切切割模式 (Cut Mode)
<span class="info-icon" data-tooltip="【輪廓模式】追蹤邊緣雙描邊，適合實心色塊雕刻；【單線模式】將線條細線化並追蹤為單一中心線，適合雷射沿中線切割（省時）；【邊緣模式】Canny 演算，適合照片提取。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<div class="segmented-control mode-3-cols">
<label class="segment-tab">
<input type="radio" name="cut-mode" value="outline" checked>
<span class="segment-label">輪廓 (Outline)</span>
</label>
<label class="segment-tab">
<input type="radio" name="cut-mode" value="centerline">
<span class="segment-label">單線 (Centerline)</span>
</label>
<label class="segment-tab">
<input type="radio" name="cut-mode" value="canny">
<span class="segment-label">邊緣 (Canny)</span>
</label>
</div>
</div>
<div class="slider-wrapper" style="margin-top: 8px;">
<div class="slider-header">
<span class="label-with-tooltip">
節點簡化程度 (Simplify)
<span class="info-icon" data-tooltip="路徑節點簡化容差。數值越大產出的 SVG 節點越少、檔案越小，但細節越少；0 為忠實還原。超小圖片建議設為 0.1~0.3。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<span id="val-simplify" class="slider-val">1.0 px</span>
</div>
<input type="range" id="slider-simplify" min="0" max="5.0" step="0.1" value="1.0">
</div>
<div class="slider-wrapper">
<div class="slider-header">
<span class="label-with-tooltip">
過濾雜點面積 (Min Area)
<span class="info-icon" data-tooltip="過濾掉小於此面積的孤立雜訊碎塊。數值越大越乾淨，但微小細節會消失。超小圖片建議設為 0~5。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<span id="val-min-area" class="slider-val">15 px</span>
</div>
<input type="range" id="slider-min-area" min="0" max="500" step="5" value="15">
</div>
<div class="checkbox-wrapper">
<label class="checkbox-label">
<input type="checkbox" id="checkbox-smooth">
<span class="label-with-tooltip">
曲線平滑 (Smooth Curves)
<span class="info-icon" data-tooltip="將折線節點轉為貝茲曲線，使線條極為平順，雷切切割時機器更不易產生抖動。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
</label>
</div>
</div>
<!-- Tab 4: Export Configuration -->
<div id="tab-export" class="settings-tab-content">
<div class="control-subgroup">
<span class="subgroup-label label-with-tooltip">
匯出樣式 (Render Mode)
<span class="info-icon" data-tooltip="【描邊】僅繪製線條路徑（細線），用於雷射切割；【填色】填充路徑閉合區塊，外觀接近黑白圖，用於雷射雕刻。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<div class="segmented-control mode-2-cols">
<label class="segment-tab">
<input type="radio" name="render-mode" value="stroke" checked>
<span class="segment-label">描邊 (Stroke)</span>
</label>
<label class="segment-tab">
<input type="radio" name="render-mode" value="fill">
<span class="segment-label">填色 (Fill)</span>
</label>
</div>
</div>
<div class="control-subgroup">
<span class="subgroup-label label-with-tooltip">
匯出顏色 (Color)
<span class="info-icon" data-tooltip="SVG 路徑顏色。雷切機通常識別紅色作為「切割」路徑。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<div class="segmented-control mode-2-cols">
<label class="segment-tab">
<input type="radio" name="svg-color" value="#ff0000" checked>
<span class="segment-label color-label-red">紅色 (預設切割)</span>
</label>
<label class="segment-tab">
<input type="radio" name="svg-color" value="#000000">
<span class="segment-label color-label-black">黑色</span>
</label>
</div>
</div>
<div class="control-subgroup">
<span class="subgroup-label label-with-tooltip">
圖層模式 (Layer Mode)
<span class="info-icon" data-tooltip="【單一顏色】所有軌跡為選定色；【自動分層】最外圈線條為紅色（切割），內部孔洞細節為黑色/選定色（雕刻/標記）。適用於輪廓與邊緣模式。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
<div class="segmented-control mode-2-cols">
<label class="segment-tab">
<input type="radio" name="layer-mode" value="single" checked>
<span class="segment-label">單一顏色</span>
</label>
<label class="segment-tab">
<input type="radio" name="layer-mode" value="auto-layer">
<span class="segment-label">自動分層</span>
</label>
</div>
</div>
<div class="size-scaler-container" style="margin-top: 8px;">
<label class="checkbox-label">
<input type="checkbox" id="checkbox-enable-size" checked>
<span class="label-with-tooltip">
啟用實體尺寸標記 (毫米/mm)
<span class="info-icon" data-tooltip="勾選後，匯出的 SVG 將帶有毫米物理尺寸（以等比例縮放），匯入 Beam Studio 等軟體時不需手動重新縮放比例。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</span>
</label>
<div id="size-inputs-wrapper" class="size-inputs-wrapper">
<div class="size-input-field">
<span class="input-label">寬度 (Width)</span>
<div class="input-with-unit">
<input type="number" id="input-phys-width" min="1" max="2000" value="150">
<span class="unit-label">mm</span>
</div>
</div>
<div class="size-input-field">
<span class="input-label">高度 (Height)</span>
<div class="input-with-unit readonly-field">
<input type="text" id="input-phys-height" readonly value="-">
<span class="unit-label">mm</span>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<!-- Sticky Sidebar Download Actions -->
<div class="sidebar-action-buttons">
<button id="btn-download-svg" class="btn btn-primary">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" class="btn-icon">
<path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4M7 10l5 5 5-5M12 15V3"/>
</svg>
下載 SVG 向量檔
</button>
<div class="download-row-split">
<button id="btn-download-dxf" class="btn btn-secondary">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" class="btn-icon">
<polygon points="12 2 2 7 12 12 22 7 12 2"></polygon>
<polyline points="2 17 12 22 22 17"></polyline>
</svg>
下載 DXF
</button>
<button id="btn-download-png" class="btn btn-secondary">
下載 PNG
</button>
</div>
</div>
</aside>
<!-- Right Panel: Live Preview Workspace -->
<section class="app-workspace">
<!-- Floating Workspace Header -->
<div class="workspace-header">
<div class="workspace-title">
<svg class="workspace-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<rect x="3" y="3" width="18" height="18" rx="2" ry="2"></rect>
<line x1="9" y1="3" x2="9" y2="21"></line>
</svg>
<h2>即時預覽工作區</h2>
</div>
<!-- Info Board (Stats) -->
<div class="stats-panel-compact">
<div class="stat-item">
<span class="stat-label">圖片尺寸</span>
<span id="stat-resolution" class="stat-value">-</span>
</div>
<div class="stat-divider"></div>
<div class="stat-item">
<span class="stat-label">偵測到路徑數</span>
<span id="stat-contours" class="stat-value">-</span>
</div>
<div class="stat-divider"></div>
<div class="stat-item">
<span class="stat-label">SVG 節點數</span>
<span id="stat-nodes" class="stat-value">-</span>
</div>
</div>
</div>
<!-- Previews Workspace -->
<div class="preview-panel card">
<div class="preview-grid">
<!-- Canvas Preview -->
<div class="preview-pane">
<div class="pane-header label-with-tooltip">
<span>1. 點陣黑白圖 (PNG)</span>
<span class="info-icon tooltip-right" data-tooltip="「點陣點點圖」由像素點組成，放大會有鋸齒馬賽克。適合雷射機進行點陣掃描，儲存對應為「下載 PNG 線條圖」。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
<button id="btn-magic-toggle" class="btn-pane-tool" type="button" title="魔術棒去背：點擊背景區域即可清除" disabled>
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
<path d="M15 4V2M15 16v-2M8 9h2M20 9h2M17.8 11.8L19 13M15 9h.01M17.8 6.2L19 5M3 21l9-9M12.2 6.2L11 5"></path>
</svg>
<span>魔術棒去背</span>
</button>
<button id="btn-compare-toggle" class="btn-pane-tool" type="button" title="與原圖對比" disabled>
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<rect x="3" y="4" width="18" height="16" rx="2"></rect>
<line x1="12" y1="2" x2="12" y2="22"></line>
</svg>
<span>原圖對比</span>
</button>
</div>
<div class="canvas-container checkerboard">
<div id="canvas-preview-wrapper" class="preview-wrapper">
<canvas id="output-canvas"></canvas>
</div>
<!-- Magic-wand background removal overlay -->
<div id="magic-layer" class="magic-layer hidden">
<div class="magic-canvas-wrap">
<canvas id="magic-canvas"></canvas>
</div>
<div class="magic-toolbar">
<span class="magic-hint">🪄 點擊要清除的背景區域</span>
<div class="magic-tol">
<span>容差</span>
<input type="range" id="slider-magic-tol" min="5" max="120" step="5" value="35">
<span id="val-magic-tol">35</span>
</div>
<div class="magic-actions">
<button id="btn-magic-step-undo" class="magic-btn" type="button" title="上一步 (Undo)" disabled>
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="9 14 4 9 9 4"></polyline><path d="M20 20v-7a4 4 0 0 0-4-4H4"></path></svg>
上一步
</button>
<button id="btn-magic-step-redo" class="magic-btn" type="button" title="下一步 (Redo)" disabled>
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="15 14 20 9 15 4"></polyline><path d="M4 20v-7a4 4 0 0 1 4-4h12"></path></svg>
下一步
</button>
<button id="btn-magic-undo" class="magic-btn" type="button">全部清除</button>
<button id="btn-magic-done" class="magic-btn magic-btn-primary" type="button">完成</button>
</div>
</div>
</div>
<!-- Before / After comparison overlay -->
<div id="compare-layer" class="compare-layer hidden">
<div id="compare-frame" class="compare-frame">
<img id="compare-after" class="compare-after" alt="處理後線條圖">
<img id="compare-before" class="compare-before" alt="原始圖片">
<div id="compare-divider" class="compare-divider">
<div class="compare-handle">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5"><polyline points="15 18 9 12 15 6"></polyline></svg>
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5"><polyline points="9 18 15 12 9 6"></polyline></svg>
</div>
</div>
<span class="compare-tag compare-tag-before">原圖</span>
<span class="compare-tag compare-tag-after">處理後</span>
</div>
</div>
<div id="empty-state-canvas" class="empty-state">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" class="empty-state-icon">
<rect x="3" y="3" width="18" height="18" rx="2" ry="2"></rect>
<circle cx="8.5" cy="8.5" r="1.5"></circle>
<polyline points="21 15 16 10 5 21"></polyline>
</svg>
<p>工作區已就緒，請上傳圖片以開始</p>
</div>
</div>
</div>
<!-- SVG Vector Preview -->
<div class="preview-pane">
<div class="pane-header label-with-tooltip">
<span>2. 向量路徑圖 (SVG)</span>
<span class="info-icon tooltip-right" data-tooltip="「向量軌跡」由數學線段與曲線組成，放大無限倍仍平滑。可用於雷射切割或向量雕刻，儲存對應為「下載 SVG 向量檔」。">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="12" y1="16" x2="12" y2="12"></line><line x1="12" y1="8" x2="12.01" y2="8"></line></svg>
</span>
</div>
<div class="svg-container checkerboard">
<div id="svg-preview-wrapper" class="preview-wrapper">
<img id="svg-preview" class="hidden" alt="SVG 向量預覽">
</div>
<div id="svg-zoom-indicator" class="zoom-indicator hidden">
<span>🖱️ 滾輪縮放 / 拖曳平移 | 雙擊重設</span>
</div>
<div id="empty-state-svg" class="empty-state">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" class="empty-state-icon">
<polygon points="12 2 2 7 12 12 22 7 12 2"></polygon>
<polyline points="2 17 12 22 22 17"></polyline>
<polyline points="2 12 12 17 22 12"></polyline>
</svg>
<p>向量路徑生成後將在此顯示</p>
</div>
</div>
</div>
</div>
</div>
</section>
</main>
<!-- Footer -->
<footer class="app-footer">
<p>© 2026 <a href="https://begin0808.github.io/studio0808/" target="_blank" class="footer-link">Studio0808 智造實驗室</a>. All rights reserved. <a href="mailto:begin0808@gmail.com" class="footer-link">✉ 寫信給我</a></p>
</footer>
</div>
<!-- Help / Tips Modal -->
<div id="help-modal" class="help-modal hidden">
<div class="help-backdrop" id="help-backdrop"></div>
<div class="help-dialog" role="dialog" aria-modal="true" aria-labelledby="help-title">
<div class="help-header">
<h2 id="help-title">🛠️ 使用技巧與疑難排解</h2>
<button id="btn-help-close" class="help-close" title="關閉">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>
</button>
</div>
<div class="help-body">
<p class="help-intro">下面是常見情況的處理方法。本工具是<strong>參數式</strong>調整，搭配<strong>魔術棒去背</strong>即可解決大多數問題，不需另外開修圖軟體。</p>
<div class="help-card">
<div class="help-card-title">🔴 畫面有很多黑點／雜訊</div>
<p>常見於深色漸層背景、掃描紙張紋理或陰影。依序嘗試：</p>
<ul>
<li><b>先按「手繪相片最佳化」預設</b>，多半一鍵改善。</li>
<li><b>魔術棒去背</b>（預覽區左上）：直接點背景區域整片清除，最適合單一色背景。</li>
<li><b>亮部去背</b>（濾波預處理）：淺色背景往下拉即可壓白。</li>
<li><b>影像亮度 +30～+60</b>：把暗背景洗白，從源頭消除雜點。</li>
<li><b>形態學去雜點 1～2</b>（二值化）：擦掉細小點，連點陣圖也變乾淨。</li>
<li><b>過濾雜點面積 100～300</b>（向量優化）：丟掉小碎塊，<i>只清 SVG 向量</i>。</li>
</ul>
<p class="help-warn">⚠️ 這幾項調太大會連小字筆畫一起吃掉，請小幅遞增。</p>
</div>
<div class="help-card">
<div class="help-card-title">✏️ 手繪鉛筆線太淡、抓不到線</div>
<ul>
<li><b>影像對比 +30～+60</b>：拉大黑白分界。</li>
<li><b>影像亮度 −10～−30</b>：加深過淡的線條。</li>
<li><b>臨界分界偏置 (C) 調低</b>：線變粗、細節變多。</li>
</ul>
</div>
<div class="help-card">
<div class="help-card-title">〰️ 線條斷斷續續、有缺口</div>
<ul>
<li><b>形態學去雜點 1～2</b>：填補主線微小斷裂。</li>
<li><b>雙邊濾波強度</b>調低，避免線被糊掉。</li>
<li>切割用途建議搭配<b>單線 (Centerline)</b> 模式沿中線切。</li>
</ul>
</div>
<div class="help-card">
<div class="help-card-title">📦 SVG 檔太大、節點太多、雷切機跑很慢</div>
<ul>
<li><b>節點簡化程度</b>調高（1.5～3）：節點變少、檔案更小。</li>
<li><b>曲線平滑</b>打開：折線轉貝茲曲線，機器更順。</li>
<li><b>過濾雜點面積</b>調高：去掉大量小碎塊。</li>
</ul>
</div>
<div class="help-card">
<div class="help-card-title">🌓 黑底白字／深色背景圖</div>
<ul>
<li>勾選<b>反轉黑白顏色 (Invert Colors)</b>。</li>
<li>再視情況用<b>魔術棒去背</b>清掉背景。</li>
</ul>
</div>
<div class="help-card">
<div class="help-card-title">✂️ 只要外框切割、內部當雕刻</div>
<ul>
<li><b>圖層模式 → 自動分層</b>：最外圈紅色(切割)、內部黑色(雕刻)。</li>
<li>匯出 <b>DXF</b> 會自動分成 <code>CUT</code> / <code>ENGRAVE</code> 兩圖層。</li>
</ul>
</div>
<div class="help-card">
<div class="help-card-title">🪄 魔術棒去背怎麼用？</div>
<ul>
<li>點預覽區左上「<b>魔術棒去背</b>」→ 左側會顯示原圖。</li>
<li><b>點一下背景</b>，相近顏色的整片區域會被清除（標成紅色）。</li>
<li>拉「<b>容差</b>」控制一次清除的顏色範圍；可連續點多處累加。</li>
<li><b>還原</b>清空選取、<b>完成</b>離開（清除結果會保留並套用）。</li>
</ul>
</div>
<div class="help-card">
<div class="help-card-title">📐 想要正確的實體尺寸</div>
<ul>
<li>在<b>輸出規格</b>勾選「啟用實體尺寸標記」，填入寬度(mm)，高度自動等比。</li>
<li>SVG／DXF 都會帶 mm 尺寸，匯入 Beam Studio / LightBurn 免重縮。</li>
</ul>
</div>
</div>
</div>
</div>
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<script type="module" src="/src/main.js"></script>
</body>
</html>