From 2c643696942012b8dac8299cecfe8be9a627f32c Mon Sep 17 00:00:00 2001 From: Sejong Yoo Date: Wed, 22 Jul 2026 11:48:43 +0900 Subject: [PATCH] =?UTF-8?q?ocr=20=EB=B0=8F=20=EC=8A=A4=EC=BA=90=EB=84=88?= =?UTF-8?q?=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .dockerignore | 2 + .gitignore | 1 + package-lock.json | 1436 ++++++++++++++++- packages/backend/src/index.ts | 13 +- packages/frontend/package.json | 7 + .../frontend/scripts/copy-viewer-assets.mjs | 143 ++ packages/frontend/src/App.vue | 4 +- .../src/components/scanner/CornerEditor.vue | 196 +++ .../src/composables/scannerSession.ts | 11 + .../src/composables/useOpenDocument.ts | 13 +- packages/frontend/src/config/app.ts | 28 + packages/frontend/src/config/favicons.ts | 9 + .../src/integrations/scanner/buildPdf.ts | 83 + .../src/integrations/scanner/detect.ts | 194 +++ .../frontend/src/integrations/scanner/ocr.ts | 104 ++ .../src/integrations/scanner/pdfPages.ts | 90 ++ .../src/integrations/scanner/types.ts | 39 + .../frontend/src/integrations/scanner/warp.ts | 74 + packages/frontend/src/router/index.ts | 5 + .../frontend/src/types/scanner-shims.d.ts | 10 + packages/frontend/src/views/HomeView.vue | 35 +- packages/frontend/src/views/LicensesView.vue | 71 + .../frontend/src/views/ToolsScannerView.vue | 992 ++++++++++++ packages/frontend/vite.config.ts | 4 + 24 files changed, 3556 insertions(+), 8 deletions(-) create mode 100644 packages/frontend/src/components/scanner/CornerEditor.vue create mode 100644 packages/frontend/src/composables/scannerSession.ts create mode 100644 packages/frontend/src/integrations/scanner/buildPdf.ts create mode 100644 packages/frontend/src/integrations/scanner/detect.ts create mode 100644 packages/frontend/src/integrations/scanner/ocr.ts create mode 100644 packages/frontend/src/integrations/scanner/pdfPages.ts create mode 100644 packages/frontend/src/integrations/scanner/types.ts create mode 100644 packages/frontend/src/integrations/scanner/warp.ts create mode 100644 packages/frontend/src/types/scanner-shims.d.ts create mode 100644 packages/frontend/src/views/ToolsScannerView.vue diff --git a/.dockerignore b/.dockerignore index af5c326..cd034b4 100644 --- a/.dockerignore +++ b/.dockerignore @@ -2,6 +2,8 @@ node_modules **/node_modules **/dist packages/backend/public +packages/frontend/public/assets +packages/frontend/public/viewer-assets .git .env .env.* diff --git a/.gitignore b/.gitignore index 3a6b5d6..1e7decd 100644 --- a/.gitignore +++ b/.gitignore @@ -7,6 +7,7 @@ packages/frontend/public/assets/dxf-parser-worker.js packages/frontend/public/assets/libredwg-parser-worker.js packages/frontend/public/assets/mtext-renderer-worker.js packages/frontend/public/viewer-assets/ +packages/frontend/.cache/ .env .env.local *.log diff --git a/package-lock.json b/package-lock.json index 0ac2f64..252614a 100644 --- 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"^1.1.1", "@rhwp/editor": "^0.7.18", "@vueuse/core": "^11.3.0", "draco3d": "^1.5.7", "element-plus": "^2.14.3", "fflate": "^0.8.2", + "jscanify": "^1.4.3", "lodash-es": "^4.17.21", "mermaid": "^11.16.0", "occt-import-js": "^0.0.22", "online-3d-viewer": "^0.18.0", + "onnxruntime-web": "^1.27.0", + "pdf-lib": "^1.17.1", + "pdfjs-dist": "^6.1.200", + "ppu-paddle-ocr": "^6.1.2", "react": "^18.3.1", "react-dom": "^18.3.1", "rhino3dm": "^8.17.0", @@ -7945,6 +9372,7 @@ }, "devDependencies": { "@fontsource-variable/noto-sans-kr": "^5.3.0", + "@fontsource/noto-sans-kr": "^5.3.0", "@noto-pdf-ts/fonts-kr": "^0.0.1-alpha.0", "@types/react": "^19.2.17", "@types/react-dom": "^19.2.3", diff --git a/packages/backend/src/index.ts b/packages/backend/src/index.ts index 4bc0bc0..192eab0 100644 --- a/packages/backend/src/index.ts +++ b/packages/backend/src/index.ts @@ -40,12 +40,23 @@ async function main() { app.use('/api/documents', documentsRouter); if (fs.existsSync(config.publicDir)) { - app.use(express.static(config.publicDir)); + app.use(express.static(config.publicDir, { + setHeaders(res, filePath) { + if (filePath.endsWith('.wasm')) { + res.setHeader('Content-Type', 'application/wasm'); + } + }, + })); app.get('*', (req, res, next) => { if (req.path.startsWith('/api')) { next(); return; } + // Do not SPA-fallback missing static assets (wasm, workers, traineddata). + if (/\.[a-z0-9]+$/i.test(req.path)) { + res.status(404).end(); + return; + } res.sendFile(path.join(config.publicDir, 'index.html')); }); } diff --git a/packages/frontend/package.json b/packages/frontend/package.json index 777b37c..83326b8 100644 --- a/packages/frontend/package.json +++ b/packages/frontend/package.json @@ -23,15 +23,21 @@ "@mlightcad/cad-viewer": "^1.5.8", "@mlightcad/data-model": "^1.11.2", "@mlightcad/dxf-json-converter": "^1.11.2", + "@pdf-lib/fontkit": "^1.1.1", "@rhwp/editor": "^0.7.18", "@vueuse/core": "^11.3.0", "draco3d": "^1.5.7", "element-plus": "^2.14.3", "fflate": "^0.8.2", + "jscanify": "^1.4.3", "lodash-es": "^4.17.21", "mermaid": "^11.16.0", "occt-import-js": "^0.0.22", "online-3d-viewer": "^0.18.0", + "onnxruntime-web": "^1.27.0", + "pdf-lib": "^1.17.1", + "pdfjs-dist": "^6.1.200", + "ppu-paddle-ocr": "^6.1.2", "react": "^18.3.1", "react-dom": "^18.3.1", "rhino3dm": "^8.17.0", @@ -43,6 +49,7 @@ }, "devDependencies": { "@fontsource-variable/noto-sans-kr": "^5.3.0", + "@fontsource/noto-sans-kr": "^5.3.0", "@noto-pdf-ts/fonts-kr": "^0.0.1-alpha.0", "@types/react": "^19.2.17", "@types/react-dom": "^19.2.3", diff --git a/packages/frontend/scripts/copy-viewer-assets.mjs b/packages/frontend/scripts/copy-viewer-assets.mjs index b4fb42f..29949dc 100644 --- a/packages/frontend/scripts/copy-viewer-assets.mjs +++ b/packages/frontend/scripts/copy-viewer-assets.mjs @@ -193,6 +193,149 @@ await writeFile( ].join('\n'), ); +const scannerAssets = [ + [resolvePackage('jscanify/src/opencv.js'), 'viewer-assets/scanner/opencv.js'], + [resolvePackage('jscanify/src/jscanify.js'), 'viewer-assets/scanner/jscanify.js'], + [resolvePackage('jscanify/LICENSE'), 'viewer-assets/scanner/licenses/jscanify.LICENSE'], + [ + resolvePackage('ppu-paddle-ocr/LICENSE'), + 'viewer-assets/scanner/licenses/ppu-paddle-ocr.LICENSE', + ], + [ + resolvePackage('pdfjs-dist/build/pdf.worker.min.mjs'), + 'viewer-assets/scanner/pdfjs/pdf.worker.min.mjs', + ], + [ + resolvePackage('pdfjs-dist/LICENSE'), + 'viewer-assets/scanner/licenses/pdfjs-dist.LICENSE', + ], +]; + +await Promise.all( + scannerAssets.map(([sources, destination]) => + copyFirst(sources, destination), + ), +); + +{ + const { access, readdir, rm } = await import('node:fs/promises'); + const legacyTesseract = path.join(publicDir, 'viewer-assets/scanner/tesseract'); + try { + await rm(legacyTesseract, { recursive: true, force: true }); + } catch { + // ignore + } + + const ortDest = path.join(publicDir, 'viewer-assets/scanner/ort'); + await mkdir(ortDest, { recursive: true }); + const ortNames = [ + 'ort-wasm-simd-threaded.wasm', + 'ort-wasm-simd-threaded.mjs', + 'ort-wasm-simd-threaded.jsep.wasm', + 'ort-wasm-simd-threaded.jsep.mjs', + ]; + let ortCopied = false; + for (const candidate of resolvePackage('onnxruntime-web/dist')) { + try { + const entries = await readdir(candidate); + const wanted = ortNames.filter((name) => entries.includes(name)); + if (wanted.length < ortNames.length) continue; + await Promise.all( + wanted.map((name) => + cp(path.join(candidate, name), path.join(ortDest, name)), + ), + ); + ortCopied = true; + break; + } catch { + // try next + } + } + if (!ortCopied) { + throw new Error('Missing onnxruntime-web WASM assets'); + } + + const paddleDest = path.join(publicDir, 'viewer-assets/scanner/paddle'); + await mkdir(paddleDest, { recursive: true }); + const modelCacheDir = path.join(frontendDir, '.cache', 'paddle-ocr-models'); + await mkdir(modelCacheDir, { recursive: true }); + + const MODEL_BASE = + 'https://media.githubusercontent.com/media/PT-Perkasa-Pilar-Utama/ppu-paddle-ocr-models/main'; + const DICT_BASE = + 'https://raw.githubusercontent.com/PT-Perkasa-Pilar-Utama/ppu-paddle-ocr-models/main'; + const paddleFiles = [ + { + url: `${MODEL_BASE}/detection/PP-OCRv5_mobile_det_infer.onnx`, + name: 'PP-OCRv5_mobile_det_infer.onnx', + }, + { + url: `${MODEL_BASE}/recognition/multi/korean/v5/korean_PP-OCRv5_mobile_rec_infer.onnx`, + name: 'korean_PP-OCRv5_mobile_rec_infer.onnx', + }, + { + url: `${DICT_BASE}/recognition/multi/korean/v5/ppocrv5_korean_dict.txt`, + name: 'ppocrv5_korean_dict.txt', + }, + ]; + + async function downloadToCache(url, name) { + const cached = path.join(modelCacheDir, name); + try { + await access(cached); + return cached; + } catch { + // download + } + console.log(`downloading paddle model: ${name}`); + let lastError; + for (let attempt = 1; attempt <= 3; attempt += 1) { + try { + const response = await fetch(url); + if (!response.ok) { + throw new Error(`HTTP ${response.status} for ${url}`); + } + const buffer = Buffer.from(await response.arrayBuffer()); + if (buffer.byteLength < 64) { + throw new Error(`Unexpectedly small download for ${name}`); + } + await writeFile(cached, buffer); + return cached; + } catch (error) { + lastError = error; + console.warn(`retry ${attempt}/3 failed for ${name}:`, error); + } + } + throw lastError ?? new Error(`Failed to download ${name}`); + } + + for (const file of paddleFiles) { + const cachedPath = await downloadToCache(file.url, file.name); + await cp(cachedPath, path.join(paddleDest, file.name)); + } + + await writeFile( + path.join(publicDir, 'viewer-assets/scanner/licenses/paddle-ocr-models.NOTICE.txt'), + [ + 'PP-OCRv5 ONNX models are sourced from:', + 'https://github.com/PT-Perkasa-Pilar-Utama/ppu-paddle-ocr-models', + 'upstream: https://www.paddleocr.ai/ (Apache-2.0)', + '', + ].join('\n'), + ); +} + +await writeFile( + path.join(publicDir, 'viewer-assets/scanner/README.txt'), + [ + 'Self-hosted document scanner libraries (OpenCV.js, jscanify, ppu-paddle-ocr, pdf.js).', + 'OCR: PP-OCRv5 Korean mobile (det + rec + dict) under paddle/.', + 'ONNX Runtime Web WASM under ort/.', + 'PDF.js worker under pdfjs/.', + '', + ].join('\n'), +); + const O3DV_BASE = '/viewer-assets/o3dv/'; const replacements = [ [ diff --git a/packages/frontend/src/App.vue b/packages/frontend/src/App.vue index fd5431d..4f3ecb0 100644 --- a/packages/frontend/src/App.vue +++ b/packages/frontend/src/App.vue @@ -20,7 +20,8 @@ const viewKey = computed(() => { route.name === 'mermaid-editor' || route.name === 'drawio-editor' || route.name === 'cad-viewer' || - route.name === 'model3d-viewer' + route.name === 'model3d-viewer' || + route.name === 'tools-scanner' ) { return String(route.name); } @@ -39,6 +40,7 @@ const viewKey = computed(() => { 'DrawioEditorView', 'CadViewerView', 'Model3DViewerView', + 'ToolsScannerView', ]" :max="10" > diff --git a/packages/frontend/src/components/scanner/CornerEditor.vue b/packages/frontend/src/components/scanner/CornerEditor.vue new file mode 100644 index 0000000..a297297 --- /dev/null +++ b/packages/frontend/src/components/scanner/CornerEditor.vue @@ -0,0 +1,196 @@ + + + + + diff --git a/packages/frontend/src/composables/scannerSession.ts b/packages/frontend/src/composables/scannerSession.ts new file mode 100644 index 0000000..2f30e4c --- /dev/null +++ b/packages/frontend/src/composables/scannerSession.ts @@ -0,0 +1,11 @@ +let pending: File[] = []; + +export function stageScannerFiles(files: readonly File[]) { + pending = [...files]; +} + +export function consumeScannerFiles(): File[] { + const files = pending; + pending = []; + return files; +} diff --git a/packages/frontend/src/composables/useOpenDocument.ts b/packages/frontend/src/composables/useOpenDocument.ts index a288add..e9d64a6 100644 --- a/packages/frontend/src/composables/useOpenDocument.ts +++ b/packages/frontend/src/composables/useOpenDocument.ts @@ -4,6 +4,7 @@ import { diagramKindFor, isHwp, isOffice, + toolKindFor, viewerKindFor, } from '@/config/app'; import { @@ -18,6 +19,7 @@ import { storeHwpFile, } from '@/composables/useSessionLifecycle'; import { stageDiagramFile } from '@/composables/diagramSession'; +import { stageScannerFiles } from '@/composables/scannerSession'; import { stageViewerFiles } from '@/composables/viewerSession'; export function useOpenDocument() { @@ -37,6 +39,7 @@ export function useOpenDocument() { files.find( (candidate) => viewerKindFor(candidate.name) || + toolKindFor(candidate.name) || diagramKindFor(candidate.name) || isHwp(candidate.name) || isOffice(candidate.name), @@ -53,6 +56,14 @@ export function useOpenDocument() { return true; } + const toolKind = toolKindFor(file.name); + if (toolKind === 'scanner') { + const images = files.filter((candidate) => toolKindFor(candidate.name) === 'scanner'); + stageScannerFiles(images.length ? images : [file]); + await router.push({ name: 'tools-scanner' }); + return true; + } + const diagramKind = diagramKindFor(file.name); if (diagramKind) { stageDiagramFile(diagramKind, file); @@ -69,7 +80,7 @@ export function useOpenDocument() { if (!isOffice(file.name)) { error.value = - '지원하지 않는 형식입니다. 오피스, HWP 또는 다이어그램 파일을 선택해 주세요.'; + '지원하지 않는 형식입니다. 오피스, HWP, 다이어그램, CAD/3D 또는 이미지를 선택해 주세요.'; return false; } diff --git a/packages/frontend/src/config/app.ts b/packages/frontend/src/config/app.ts index 512476c..91175f4 100644 --- a/packages/frontend/src/config/app.ts +++ b/packages/frontend/src/config/app.ts @@ -7,6 +7,7 @@ export const APP_DISPLAY_NAME = "Sejong Office"; export type DiagramKind = "excalidraw" | "mermaid" | "drawio"; export type ViewerKind = "cad" | "model3d"; +export type ToolKind = "scanner"; const DIAGRAM_EXTENSION_KIND: Record = { excalidraw: "excalidraw", @@ -16,6 +17,25 @@ const DIAGRAM_EXTENSION_KIND: Record = { xml: "drawio", }; +/** Image files opened in the document scanner tool. */ +export const SCANNER_EXTENSIONS = new Set([ + "png", + "jpg", + "jpeg", + "webp", + "gif", + "bmp", +]); + +const TOOL_EXTENSION_KIND: Record = { + png: "scanner", + jpg: "scanner", + jpeg: "scanner", + webp: "scanner", + gif: "scanner", + bmp: "scanner", +}; + /** Online3DViewer import formats (+ zip container). */ export const MODEL3D_EXTENSIONS = [ "3dm", @@ -95,3 +115,11 @@ export function diagramKindFor(filename: string): DiagramKind | null { export function viewerKindFor(filename: string): ViewerKind | null { return VIEWER_EXTENSION_KIND[extensionOf(filename)] ?? null; } + +export function toolKindFor(filename: string): ToolKind | null { + return TOOL_EXTENSION_KIND[extensionOf(filename)] ?? null; +} + +export function isScannerImage(filename: string): boolean { + return SCANNER_EXTENSIONS.has(extensionOf(filename)); +} diff --git a/packages/frontend/src/config/favicons.ts b/packages/frontend/src/config/favicons.ts index 7c70559..aa182e2 100644 --- a/packages/frontend/src/config/favicons.ts +++ b/packages/frontend/src/config/favicons.ts @@ -17,6 +17,7 @@ export type FaviconKind = | 'diagram' | 'cad' | 'model3d' + | 'scanner' | 'text' | 'csv' | 'file'; @@ -35,6 +36,7 @@ export const ICON_PATHS: Record = { diagram: 'M4 3H10V9H8V11H16V9H14V3H20V9H18V13H13V15H16V21H8V15H11V13H6V9H4V3M6 5V7H8V5H6M16 5V7H18V5H16M10 17V19H14V17H10Z', cad: 'M3 3H21V21H3V3M5 5V19H19V5H5M7 17V15H9V13H11V11H13V9H15V7H17V17H7Z', model3d: 'M12 2L21 7V17L12 22L3 17V7L12 2M12 4.3L5.4 8L12 11.7L18.6 8L12 4.3M5 9.7V15.8L11 19.1V13.1L5 9.7M13 19.1L19 15.8V9.7L13 13.1V19.1Z', + scanner: 'M4 4H10V6H6V10H4V4M14 4H20V10H18V6H14V4M4 14H6V18H10V20H4V14M18 14H20V20H14V18H18V14M8 8H16V16H8V8Z', text: 'M6,2A2,2 0 0,0 4,4V20A2,2 0 0,0 6,22H18A2,2 0 0,0 20,20V8L14,2H6M6,4H13V9H18V20H6V4M8,12V14H16V12H8M8,16V18H13V16H8Z', csv: 'M14 2H6C4.9 2 4 2.9 4 4V20C4 21.1 4.9 22 6 22H18C19.1 22 20 21.1 20 20V8L14 2M18 20H6V4H13V9H18V20M10 19L12 15H9V10H15V15L13 19H10', file: 'M6,2A2,2 0 0,0 4,4V20A2,2 0 0,0 6,22H18A2,2 0 0,0 20,20V8L14,2H6M6,4H13V9H18V20H6V4M8,12V14H16V12H8M8,16V18H13V16H8Z', @@ -52,6 +54,7 @@ export const ICON_COLORS: Record = { diagram: '#2e7d8a', cad: '#5c6bc0', model3d: '#6d4c41', + scanner: '#00897b', text: '#607d8b', csv: '#00838f', file: '#546e7a', @@ -105,6 +108,12 @@ const EXT_KIND: Record = { ply: 'model3d', wrl: 'model3d', zip: 'model3d', + png: 'scanner', + jpg: 'scanner', + jpeg: 'scanner', + webp: 'scanner', + gif: 'scanner', + bmp: 'scanner', txt: 'text', }; diff --git a/packages/frontend/src/integrations/scanner/buildPdf.ts b/packages/frontend/src/integrations/scanner/buildPdf.ts new file mode 100644 index 0000000..f3c7df0 --- /dev/null +++ b/packages/frontend/src/integrations/scanner/buildPdf.ts @@ -0,0 +1,83 @@ +import fontkit from '@pdf-lib/fontkit'; +import { PDFDocument, rgb, StandardFonts } from 'pdf-lib'; +import type { OcrResult } from './types'; + +export interface PdfPageInput { + imageBytes: ArrayBuffer; + width: number; + height: number; + ocr?: OcrResult | null; +} + +async function loadCjkFont(pdf: PDFDocument) { + pdf.registerFontkit(fontkit); + const response = await fetch( + '/viewer-assets/cad-resources/fonts/NotoSansKR-VF.ttf', + ); + if (!response.ok) { + throw new Error('PDF용 한글 글꼴을 불러오지 못했습니다.'); + } + const bytes = await response.arrayBuffer(); + return pdf.embedFont(bytes, { subset: true }); +} + +export async function buildSearchablePdf(pages: PdfPageInput[]) { + if (!pages.length) { + throw new Error('PDF로 내보낼 페이지가 없습니다.'); + } + + const pdf = await PDFDocument.create(); + let cjkFont = null as Awaited> | null; + let latinFont = await pdf.embedFont(StandardFonts.Helvetica); + + const needsCjk = pages.some((page) => + page.ocr?.words.some((word) => /[^\u0000-\u007f]/.test(word.text)), + ); + if (needsCjk || pages.some((page) => page.ocr?.text)) { + try { + cjkFont = await loadCjkFont(pdf); + } catch { + cjkFont = null; + } + } + + for (const page of pages) { + const image = await pdf.embedPng(page.imageBytes); + const pdfPage = pdf.addPage([page.width, page.height]); + pdfPage.drawImage(image, { + x: 0, + y: 0, + width: page.width, + height: page.height, + }); + + const font = cjkFont ?? latinFont; + if (page.ocr?.words.length) { + for (const word of page.ocr.words) { + const text = word.text.trim(); + if (!text) continue; + if (!cjkFont && /[^\u0000-\u007f]/.test(text)) continue; + const boxWidth = Math.max(1, word.bbox.x1 - word.bbox.x0); + const boxHeight = Math.max(1, word.bbox.y1 - word.bbox.y0); + const fontSize = Math.max(4, Math.min(boxHeight * 0.9, boxWidth)); + const x = word.bbox.x0; + const y = page.height - word.bbox.y1; + try { + pdfPage.drawText(text, { + x, + y, + size: fontSize, + font, + color: rgb(0, 0, 0), + opacity: 0, + maxWidth: boxWidth, + }); + } catch { + // Skip glyphs the embedded font cannot encode. + } + } + } + } + + return pdf.save(); +} diff --git a/packages/frontend/src/integrations/scanner/detect.ts b/packages/frontend/src/integrations/scanner/detect.ts new file mode 100644 index 0000000..c273d54 --- /dev/null +++ b/packages/frontend/src/integrations/scanner/detect.ts @@ -0,0 +1,194 @@ +import type { CornerPoints, Point2D } from './types'; + +declare global { + interface Window { + cv?: { + Mat: new () => unknown; + imread: (el: HTMLCanvasElement | HTMLImageElement) => { + delete: () => void; + cols: number; + rows: number; + }; + onRuntimeInitialized?: () => void; + }; + jscanify?: new () => JscanifyInstance; + } +} + +export interface JscanifyInstance { + findPaperContour: (mat: unknown) => unknown | null; + getCornerPoints: (contour: unknown) => Partial; + extractPaper: ( + image: HTMLCanvasElement | HTMLImageElement, + width: number, + height: number, + corners?: CornerPoints, + ) => HTMLCanvasElement | null; +} + +const OPENCV_URL = '/viewer-assets/scanner/opencv.js'; +const JSCANIFY_URL = '/viewer-assets/scanner/jscanify.js'; + +let opencvReady: Promise | null = null; +let jscanifyReady: Promise | null = null; + +function loadScript(src: string) { + return new Promise((resolve, reject) => { + const existing = document.querySelector( + `script[data-scanner-src="${src}"]`, + ); + if (existing) { + if (existing.dataset.loaded === '1') { + resolve(); + return; + } + existing.addEventListener('load', () => resolve(), { once: true }); + existing.addEventListener( + 'error', + () => reject(new Error(`스크립트를 불러오지 못했습니다: ${src}`)), + { once: true }, + ); + return; + } + const script = document.createElement('script'); + script.src = src; + script.async = true; + script.dataset.scannerSrc = src; + script.onload = () => { + script.dataset.loaded = '1'; + resolve(); + }; + script.onerror = () => + reject(new Error(`스크립트를 불러오지 못했습니다: ${src}`)); + document.head.appendChild(script); + }); +} + +export async function ensureOpenCv() { + if (typeof window.cv?.Mat === 'function') return; + if (!opencvReady) { + opencvReady = (async () => { + await loadScript(OPENCV_URL); + const cv = window.cv; + if (!cv) throw new Error('OpenCV.js를 초기화하지 못했습니다.'); + if (typeof cv.Mat === 'function') return; + await new Promise((resolve, reject) => { + const timeout = window.setTimeout(() => { + reject(new Error('OpenCV.js 초기화 시간이 초과되었습니다.')); + }, 60_000); + const finish = () => { + window.clearTimeout(timeout); + window.clearInterval(poll); + resolve(); + }; + const previous = cv.onRuntimeInitialized; + cv.onRuntimeInitialized = () => { + previous?.(); + finish(); + }; + const poll = window.setInterval(() => { + if (typeof cv.Mat === 'function') finish(); + }, 50); + }); + })().catch((error) => { + opencvReady = null; + throw error; + }); + } + await opencvReady; +} + +export async function ensureJscanify() { + await ensureOpenCv(); + if (window.jscanify) return; + if (!jscanifyReady) { + jscanifyReady = loadScript(JSCANIFY_URL); + } + await jscanifyReady; + if (!window.jscanify) { + throw new Error('jscanify를 불러오지 못했습니다.'); + } +} + +export function createScanner() { + if (!window.jscanify) { + throw new Error('jscanify가 준비되지 않았습니다.'); + } + return new window.jscanify(); +} + +export function fullFrameCorners( + width: number, + height: number, +): CornerPoints { + return { + topLeftCorner: { x: 0, y: 0 }, + topRightCorner: { x: width, y: 0 }, + bottomRightCorner: { x: width, y: height }, + bottomLeftCorner: { x: 0, y: height }, + }; +} + +function isValidPoint(point: Point2D | undefined): point is Point2D { + return ( + !!point && + Number.isFinite(point.x) && + Number.isFinite(point.y) + ); +} + +export function normalizeCorners( + corners: Partial | null | undefined, + width: number, + height: number, +): CornerPoints { + const fallback = fullFrameCorners(width, height); + if (!corners) return fallback; + const next: CornerPoints = { + topLeftCorner: isValidPoint(corners.topLeftCorner) + ? corners.topLeftCorner + : fallback.topLeftCorner, + topRightCorner: isValidPoint(corners.topRightCorner) + ? corners.topRightCorner + : fallback.topRightCorner, + bottomRightCorner: isValidPoint(corners.bottomRightCorner) + ? corners.bottomRightCorner + : fallback.bottomRightCorner, + bottomLeftCorner: isValidPoint(corners.bottomLeftCorner) + ? corners.bottomLeftCorner + : fallback.bottomLeftCorner, + }; + return next; +} + +export function detectCornersFromImage( + image: HTMLImageElement | HTMLCanvasElement, +): CornerPoints { + const scanner = createScanner(); + const cv = window.cv!; + const mat = cv.imread(image); + try { + const contour = scanner.findPaperContour(mat); + if (!contour) { + return fullFrameCorners(image.width, image.height); + } + const corners = scanner.getCornerPoints(contour); + if ( + typeof (contour as { delete?: () => void }).delete === 'function' + ) { + (contour as { delete: () => void }).delete(); + } + return normalizeCorners(corners, image.width, image.height); + } finally { + mat.delete(); + } +} + +export function loadImageFromUrl(url: string) { + return new Promise((resolve, reject) => { + const image = new Image(); + image.onload = () => resolve(image); + image.onerror = () => reject(new Error('이미지를 불러오지 못했습니다.')); + image.src = url; + }); +} diff --git a/packages/frontend/src/integrations/scanner/ocr.ts b/packages/frontend/src/integrations/scanner/ocr.ts new file mode 100644 index 0000000..16dc253 --- /dev/null +++ b/packages/frontend/src/integrations/scanner/ocr.ts @@ -0,0 +1,104 @@ +import * as ort from 'onnxruntime-web'; +import { + PaddleOcrService, + V5_KOREAN_MOBILE_MODEL, +} from 'ppu-paddle-ocr/web'; +import type { OcrResult, OcrWord } from './types'; + +const ORT_WASM_PATH = '/viewer-assets/scanner/ort/'; +const PADDLE_BASE = '/viewer-assets/scanner/paddle'; + +let servicePromise: Promise | null = null; + +async function toCanvas( + source: string | Blob | HTMLCanvasElement, +): Promise { + if (source instanceof HTMLCanvasElement) return source; + + const objectUrl = + typeof source === 'string' ? null : URL.createObjectURL(source); + const src = typeof source === 'string' ? source : objectUrl!; + try { + const img = await new Promise((resolve, reject) => { + const image = new Image(); + image.onload = () => resolve(image); + image.onerror = () => + reject(new Error('OCR용 이미지를 불러오지 못했습니다.')); + image.src = src; + }); + const canvas = document.createElement('canvas'); + canvas.width = img.naturalWidth || img.width; + canvas.height = img.naturalHeight || img.height; + const ctx = canvas.getContext('2d', { willReadFrequently: true }); + if (!ctx) throw new Error('Canvas를 초기화하지 못했습니다.'); + ctx.drawImage(img, 0, 0); + return canvas; + } finally { + if (objectUrl) URL.revokeObjectURL(objectUrl); + } +} + +async function getService( + onProgress?: (value: number, label: string) => void, +): Promise { + if (!servicePromise) { + servicePromise = (async () => { + onProgress?.(0.05, 'OCR 모델 준비 중'); + ort.env.wasm.wasmPaths = ORT_WASM_PATH; + const service = new PaddleOcrService({ + model: { + ...V5_KOREAN_MOBILE_MODEL, + detection: `${PADDLE_BASE}/PP-OCRv5_mobile_det_infer.onnx`, + recognition: `${PADDLE_BASE}/korean_PP-OCRv5_mobile_rec_infer.onnx`, + charactersDictionary: `${PADDLE_BASE}/ppocrv5_korean_dict.txt`, + }, + processing: { engine: 'canvas-native' }, + debugging: { verbose: false, debug: false }, + }); + await service.initialize(); + onProgress?.(0.35, 'OCR 모델 준비 완료'); + return service; + })().catch((error) => { + servicePromise = null; + throw error; + }); + } + return servicePromise; +} + +export async function recognizeImage( + source: string | Blob | HTMLCanvasElement, + onProgress?: (value: number, label: string) => void, +): Promise { + const service = await getService(onProgress); + onProgress?.(0.4, '문자 인식 중'); + const canvas = await toCanvas(source); + const result = await service.recognize(canvas, { + flatten: true, + strategy: 'per-box', + }); + const words: OcrWord[] = result.results + .filter((item) => item.text?.trim()) + .map((item) => ({ + text: item.text, + confidence: Math.round((item.confidence ?? 0) * 100), + bbox: { + x0: item.box.x, + y0: item.box.y, + x1: item.box.x + item.box.width, + y1: item.box.y + item.box.height, + }, + })); + onProgress?.(1, 'OCR 완료'); + return { + text: result.text?.trim() ?? words.map((word) => word.text).join(' '), + words, + }; +} + +export async function terminateOcrWorker() { + if (!servicePromise) return; + const service = await servicePromise; + servicePromise = null; + await service.destroy(); +} diff --git a/packages/frontend/src/integrations/scanner/pdfPages.ts b/packages/frontend/src/integrations/scanner/pdfPages.ts new file mode 100644 index 0000000..3256647 --- /dev/null +++ b/packages/frontend/src/integrations/scanner/pdfPages.ts @@ -0,0 +1,90 @@ +import { GlobalWorkerOptions, getDocument } from 'pdfjs-dist'; + +const WORKER_SRC = '/viewer-assets/scanner/pdfjs/pdf.worker.min.mjs'; +const MAX_SIDE = 1800; + +let workerConfigured = false; + +function ensureWorker() { + if (workerConfigured) return; + GlobalWorkerOptions.workerSrc = WORKER_SRC; + workerConfigured = true; +} + +function canvasToPngBlob(canvas: HTMLCanvasElement): Promise { + return new Promise((resolve, reject) => { + canvas.toBlob( + (blob) => { + if (!blob) { + reject(new Error('PDF 페이지를 PNG로 변환하지 못했습니다.')); + return; + } + resolve(blob); + }, + 'image/png', + ); + }); +} + +export interface PdfRenderedPage { + name: string; + blob: Blob; + width: number; + height: number; +} + +export async function renderPdfToImages( + file: File, + onProgress?: (done: number, total: number) => void, +): Promise { + ensureWorker(); + const data = await file.arrayBuffer(); + const pdf = await getDocument({ data }).promise; + const base = file.name.replace(/\.pdf$/i, '') || 'document'; + const pages: PdfRenderedPage[] = []; + + try { + for (let pageNumber = 1; pageNumber <= pdf.numPages; pageNumber += 1) { + onProgress?.(pageNumber - 1, pdf.numPages); + const page = await pdf.getPage(pageNumber); + const unscaled = page.getViewport({ scale: 1 }); + const longest = Math.max(unscaled.width, unscaled.height); + const scale = longest > 0 ? Math.min(2.5, MAX_SIDE / longest) : 1; + const viewport = page.getViewport({ scale }); + const canvas = document.createElement('canvas'); + canvas.width = Math.max(1, Math.floor(viewport.width)); + canvas.height = Math.max(1, Math.floor(viewport.height)); + const context = canvas.getContext('2d', { willReadFrequently: true }); + if (!context) { + throw new Error('PDF 렌더용 Canvas를 만들지 못했습니다.'); + } + await page.render({ canvasContext: context, viewport, canvas }).promise; + const blob = await canvasToPngBlob(canvas); + pages.push({ + name: `${base}-p${pageNumber}.png`, + blob, + width: canvas.width, + height: canvas.height, + }); + page.cleanup(); + } + onProgress?.(pdf.numPages, pdf.numPages); + } finally { + await pdf.cleanup(); + } + + return pages; +} + +export function isPdfFile(file: File): boolean { + return ( + file.type === 'application/pdf' || /\.pdf$/i.test(file.name) + ); +} + +export function isScannerImageFile(file: File): boolean { + return ( + /^image\/(png|jpe?g|webp|gif|bmp)$/i.test(file.type) || + /\.(png|jpe?g|webp|gif|bmp)$/i.test(file.name) + ); +} diff --git a/packages/frontend/src/integrations/scanner/types.ts b/packages/frontend/src/integrations/scanner/types.ts new file mode 100644 index 0000000..6fa9a26 --- /dev/null +++ b/packages/frontend/src/integrations/scanner/types.ts @@ -0,0 +1,39 @@ +export interface Point2D { + x: number; + y: number; +} + +export interface CornerPoints { + topLeftCorner: Point2D; + topRightCorner: Point2D; + bottomLeftCorner: Point2D; + bottomRightCorner: Point2D; +} + +export type PaperAspect = 'a4-portrait' | 'a4-landscape' | 'square' | 'auto'; + +export interface OcrWord { + text: string; + /** Pixel bbox on the warped image: x0,y0,x1,y1 */ + bbox: { x0: number; y0: number; x1: number; y1: number }; + confidence: number; +} + +export interface OcrResult { + text: string; + words: OcrWord[]; +} + +export interface ScannerPage { + id: string; + name: string; + sourceUrl: string; + sourceWidth: number; + sourceHeight: number; + corners: CornerPoints; + aspect: PaperAspect; + warpedUrl: string | null; + warpedWidth: number; + warpedHeight: number; + ocr: OcrResult | null; +} diff --git a/packages/frontend/src/integrations/scanner/warp.ts b/packages/frontend/src/integrations/scanner/warp.ts new file mode 100644 index 0000000..e77b932 --- /dev/null +++ b/packages/frontend/src/integrations/scanner/warp.ts @@ -0,0 +1,74 @@ +import { + createScanner, + ensureJscanify, + loadImageFromUrl, +} from './detect'; +import type { CornerPoints, PaperAspect } from './types'; + +export function outputSizeForAspect( + aspect: PaperAspect, + corners: CornerPoints, +) { + if (aspect === 'a4-portrait') return { width: 1240, height: 1754 }; + if (aspect === 'a4-landscape') return { width: 1754, height: 1240 }; + if (aspect === 'square') return { width: 1400, height: 1400 }; + + const widthTop = Math.hypot( + corners.topRightCorner.x - corners.topLeftCorner.x, + corners.topRightCorner.y - corners.topLeftCorner.y, + ); + const widthBottom = Math.hypot( + corners.bottomRightCorner.x - corners.bottomLeftCorner.x, + corners.bottomRightCorner.y - corners.bottomLeftCorner.y, + ); + const heightLeft = Math.hypot( + corners.bottomLeftCorner.x - corners.topLeftCorner.x, + corners.bottomLeftCorner.y - corners.topLeftCorner.y, + ); + const heightRight = Math.hypot( + corners.bottomRightCorner.x - corners.topRightCorner.x, + corners.bottomRightCorner.y - corners.topRightCorner.y, + ); + const width = Math.max(widthTop, widthBottom, 1); + const height = Math.max(heightLeft, heightRight, 1); + const scale = Math.min(1800 / width, 1800 / height, 1); + return { + width: Math.max(1, Math.round(width * scale)), + height: Math.max(1, Math.round(height * scale)), + }; +} + +export async function warpImage( + sourceUrl: string, + corners: CornerPoints, + aspect: PaperAspect, +) { + await ensureJscanify(); + const image = await loadImageFromUrl(sourceUrl); + const size = outputSizeForAspect(aspect, corners); + const scanner = createScanner(); + const canvas = scanner.extractPaper( + image, + size.width, + size.height, + corners, + ); + if (!canvas) { + throw new Error('문서 영역을 추출하지 못했습니다.'); + } + const blob = await new Promise((resolve, reject) => { + canvas.toBlob( + (value) => + value + ? resolve(value) + : reject(new Error('보정 이미지를 만들지 못했습니다.')), + 'image/png', + ); + }); + return { + blob, + width: canvas.width, + height: canvas.height, + url: URL.createObjectURL(blob), + }; +} diff --git a/packages/frontend/src/router/index.ts b/packages/frontend/src/router/index.ts index 774c316..9eb2a67 100644 --- a/packages/frontend/src/router/index.ts +++ b/packages/frontend/src/router/index.ts @@ -44,6 +44,11 @@ const router = createRouter({ name: 'model3d-viewer', component: () => import('@/views/Model3DViewerView.vue'), }, + { + path: '/tools/scanner', + name: 'tools-scanner', + component: () => import('@/views/ToolsScannerView.vue'), + }, { path: '/licenses', name: 'licenses', diff --git a/packages/frontend/src/types/scanner-shims.d.ts b/packages/frontend/src/types/scanner-shims.d.ts new file mode 100644 index 0000000..ba52ed8 --- /dev/null +++ b/packages/frontend/src/types/scanner-shims.d.ts @@ -0,0 +1,10 @@ +declare module '@pdf-lib/fontkit' { + import type { Fontkit } from 'pdf-lib'; + const fontkit: Fontkit; + export default fontkit; +} + +declare module 'jscanify/client' { + const jscanify: unknown; + export default jscanify; +} diff --git a/packages/frontend/src/views/HomeView.vue b/packages/frontend/src/views/HomeView.vue index 5539082..68f7c8f 100644 --- a/packages/frontend/src/views/HomeView.vue +++ b/packages/frontend/src/views/HomeView.vue @@ -62,6 +62,15 @@ const viewerTypes = [ }, ] as const; +const toolTypes = [ + { + route: 'tools-scanner', + extension: 'png', + title: '문서 스캐너', + subtitle: '코너 보정 · OCR · PDF', + }, +] as const; + function onDrop(e: DragEvent) { dragging.value = false; void openDocument(e.dataTransfer?.files); @@ -116,7 +125,7 @@ function onOpenTool(route: string) { {{ busy ? '여는 중…' : '파일을 끌어다 놓거나 클릭하여 선택' }} - 오피스·PDF · HWP/HWPX · 다이어그램 · CAD · 3D 모델(ZIP 포함) + 오피스·PDF · HWP/HWPX · 다이어그램 · CAD · 3D · 이미지(스캐너) @@ -193,6 +202,30 @@ function onOpenTool(route: string) { + +
+

도구

+

+ 브라우저에서 문서를 스캔·보정하고 OCR이 포함된 PDF로 저장합니다. +

+ +
+ +
+
diff --git a/packages/frontend/src/views/LicensesView.vue b/packages/frontend/src/views/LicensesView.vue index d06a77e..436614c 100644 --- a/packages/frontend/src/views/LicensesView.vue +++ b/packages/frontend/src/views/LicensesView.vue @@ -51,6 +51,41 @@ const thirdParty = [ license: 'MIT', url: 'https://github.com/101arrowz/fflate', }, + { + name: 'jscanify', + license: 'MIT', + url: 'https://github.com/puffinsoft/jscanify', + }, + { + name: 'OpenCV.js', + license: 'Apache-2.0', + url: 'https://opencv.org/', + }, + { + name: 'ppu-paddle-ocr', + license: 'MIT', + url: 'https://github.com/PT-Perkasa-Pilar-Utama/ppu-paddle-ocr', + }, + { + name: 'ONNX Runtime Web', + license: 'MIT', + url: 'https://github.com/microsoft/onnxruntime', + }, + { + name: 'PaddleOCR models (PP-OCRv5)', + license: 'Apache-2.0', + url: 'https://github.com/PaddlePaddle/PaddleOCR', + }, + { + name: 'pdf-lib', + license: 'MIT', + url: 'https://github.com/Hopding/pdf-lib', + }, + { + name: 'PDF.js', + license: 'Apache-2.0', + url: 'https://github.com/mozilla/pdf.js', + }, { name: 'Noto Sans KR', license: 'SIL OFL 1.1', @@ -149,6 +184,42 @@ const thirdParty = [

+
+

문서 스캐너

+

+ 문서 코너 검출·퍼스펙티브 보정은 + jscanify + 와 OpenCV.js(Apache-2.0)를 사용합니다. OCR은 + ppu-paddle-ocr + (MIT)와 ONNX Runtime Web(MIT)으로 PP-OCRv5 한국어 모델을 브라우저에서 + 실행하며, PDF 페이지 래스터화는 + PDF.js + (Apache-2.0), PDF 생성은 pdf-lib(MIT)입니다. OpenCV·ORT WASM·ONNX + 모델·사전·PDF.js worker는 + /viewer-assets/scanner/에 자체 호스팅됩니다. +

+

+ 스캔 이미지와 OCR 결과는 브라우저에서만 처리하며 서버로 업로드하지 + 않습니다. OCR을 켠 PDF에는 검색·복사용 투명 텍스트 레이어가 + 포함됩니다. +

+
+

Euro-Office Document Server

diff --git a/packages/frontend/src/views/ToolsScannerView.vue b/packages/frontend/src/views/ToolsScannerView.vue new file mode 100644 index 0000000..87c159b --- /dev/null +++ b/packages/frontend/src/views/ToolsScannerView.vue @@ -0,0 +1,992 @@ + + + + + diff --git a/packages/frontend/vite.config.ts b/packages/frontend/vite.config.ts index f2b6344..776a7b1 100644 --- a/packages/frontend/vite.config.ts +++ b/packages/frontend/vite.config.ts @@ -9,6 +9,9 @@ export default defineConfig({ '@': path.resolve(__dirname, 'src'), }, }, + optimizeDeps: { + exclude: ['ppu-paddle-ocr', 'onnxruntime-web'], + }, server: { port: 5173, proxy: { @@ -22,4 +25,5 @@ export default defineConfig({ outDir: path.resolve(__dirname, '../backend/public'), emptyOutDir: true, }, + assetsInclude: ['**/*.onnx', '**/*.ort', '**/*.wasm'], });