Deteksi label pada file lokal
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Simpan dan kategorikan konten berdasarkan preferensi Anda.
Menjalankan deteksi label pada file dokumen lokal.
Contoh kode
Kecuali dinyatakan lain, konten di halaman ini dilisensikan berdasarkan Lisensi Creative Commons Attribution 4.0, sedangkan contoh kode dilisensikan berdasarkan Lisensi Apache 2.0. Untuk mengetahui informasi selengkapnya, lihat Kebijakan Situs Google Developers. Java adalah merek dagang terdaftar dari Oracle dan/atau afiliasinya.
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Sulit dipahami","hardToUnderstand","thumb-down"],["Informasi atau kode contoh salah","incorrectInformationOrSampleCode","thumb-down"],["Informasi/contoh yang saya butuhkan tidak ada","missingTheInformationSamplesINeed","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],[],[],[],null,["# Label detection on a local file\n\nPerforms label detection on a local document file.\n\nCode sample\n-----------\n\n### Node.js\n\n\nBefore trying this sample, follow the Node.js setup instructions in the\n[Vision quickstart using\nclient libraries](/vision/docs/quickstart-client-libraries).\n\n\nFor more information, see the\n[Vision Node.js API\nreference documentation](https://googleapis.dev/nodejs/vision/latest).\n\n\nTo authenticate to Vision, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n // Imports the Google Cloud client libraries\n const vision = require('https://cloud.google.com/nodejs/docs/reference/vision/latest/overview.html').v1p1beta1;\n\n // Creates a client\n const client = new vision.https://cloud.google.com/nodejs/docs/reference/vision/latest/overview.html();\n\n /**\n * TODO(developer): Uncomment the following line before running the sample.\n */\n // const fileName = 'Local image file, e.g. /path/to/image.png';\n\n // Performs label detection on the local file\n const [result] = await client.textDetection(fileName);\n const pages = https://cloud.google.com/nodejs/docs/reference/vision/latest/vision/protos.google.longrunning.operation.html.fullTextAnnotation.pages;\n pages.forEach(page =\u003e {\n page.blocks.forEach(block =\u003e {\n const blockWords = [];\n block.paragraphs.forEach(paragraph =\u003e {\n paragraph.words.forEach(word =\u003e blockWords.push(word));\n console.log(`Paragraph confidence: ${paragraph.confidence}`);\n });\n\n let blockText = '';\n const blockSymbols = [];\n blockWords.forEach(word =\u003e {\n word.symbols.forEach(symbol =\u003e blockSymbols.push(symbol));\n let wordText = '';\n word.symbols.forEach(symbol =\u003e {\n wordText = wordText + symbol.text;\n console.log(`Symbol text: ${symbol.text}`);\n console.log(`Symbol confidence: ${symbol.confidence}`);\n });\n console.log(`Word text: ${wordText}`);\n console.log(`Word confidence: ${word.confidence}`);\n blockText = blockText + ` ${wordText}`;\n });\n\n console.log(`Block text: ${blockText}`);\n console.log(`Block confidence: ${block.confidence}`);\n });\n });\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=vision)."]]