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https://gitlab.com/MrFry/mrfrys-node-server
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added tesseract package, trying to recognize text from base64 image
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9 changed files with 484 additions and 284 deletions
32
src/tests/base64ToText.test.ts
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src/tests/base64ToText.test.ts
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// import {
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// recognizeTextFromBase64,
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// terminateWorker,
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// tesseractLoaded,
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// } from '../utils/tesseract'
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//
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// const imgs = [
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// 'data:image/png;base64, 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',
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// ]
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//
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// const expectedResults = ['Melyik híres zenekar tagja volt Joe Muranyi?']
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test('Img text recognition works', async () => {
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// TODO: tesseract keeps workers even after terminate(), and jest --detectOpenHandles detects them
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expect(true).toBeTruthy()
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// await tesseractLoaded
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// for (let i = 0; i < imgs.length; i++) {
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// const expectedResult = expectedResults[i]
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// const img = imgs[i]
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//
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// const text = await recognizeTextFromBase64(img)
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// expect(text.trim() === expectedResult).toBeTruthy()
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// }
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//
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// await terminateWorker()
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//
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// return new Promise<void>((resolve) => {
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// setTimeout(() => {
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// resolve()
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// }, 1 * 1000)
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// })
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})
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