ocr | 易学教程

Iterate all subfolders and OCR images in Python

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问题 I have a folder which have multiple subfolders and images, and I want use Baidu OCR to extract texts in images files in for each subfolders and write to one excel (need split contents) file for each subfolder named by subfolders name: folder \ sub1\file0.jpg \ sub1\file1.jpg \ sub1\file2.png . . . \ sub2\xxx.png \ sub2\yyy.jpg \ sub2\zzz.png . . . Expected results: folder \ sub1\file0.jpg \ sub1\file1.jpg \ sub1\file2.png \ sub1\sub1.xlsx . . . \ sub2\xxx.png \ sub2\yyy.jpg \ sub2\zzz.png \

Tess4j: Memory access error in tess4j java

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问题 I am writing a program using tess4j.jar. The program is extracting text and its location from within an image. I get this error: Exception in thread "main" java.lang.Error: Invalid memory access at net.sourceforge.tess4j.TessAPI1.TessBaseAPIRecognize(Native Method) at TesseractUtility.TessBoxForLogo.run(TessBoxForLogo.java:50) The funny thing is that it does not appear for every image. Does anybody know where I have an error? Here my code: public static ArrayList<Info> run(String imageName,

Can somebody give concrete examples(code) of using Artificial Neural Networks in OCR?

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问题 I am trying to implement OCR for my Windows Mobile application. I would like to give ANN a shot but after some searching I cannot find any concrete examples (code) to do this. I have literally no idea how this would work - although I have already read a bit about them. Can anyone post here some code or specific examples how it can be done ? 回答1: Assuming that you have labeled example images of individual characters, and that isolating characters is a solved problem, then the basic steps would

Project oxford vision API ocr exception

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问题 Got a problem with project oxford vision API. The example from project oxford git works fine and recognise text on images. But my code throws exception: Exception of type 'Microsoft.ProjectOxford.Vision.ClientException' was thrown. at Microsoft.ProjectOxford.Vision.VisionServiceClient.HandleException(Exception exception) at Microsoft.ProjectOxford.Vision.VisionServiceClient.b__39_1[TRequest,TResponse](Exception e) at System.AggregateException.Handle(Func 2 predicate) at Microsoft

I am using google vision ai where isOpertional() is returning false I donot know why because every thing is running fine

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问题 Hi I am using Google vision OCR API for image to text extraction. The code is running there is no error in dependencies but still isOperational() method is returning false. 来源： https://stackoverflow.com/questions/56513732/i-am-using-google-vision-ai-where-isopertional-is-returning-false-i-donot-know

OCR combined with font recognition? [closed]

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问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . Suppose you had an image like the following: How would you build a service to analyze this image and in a few seconds of processing, display a document with editable regions corresponding to each text region: (The rectangles are meant to show the boundaries of each editable region

Suppress Warning on Console when using Tess4j for OCRing

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问题 Help in Suppress Warning- " Warning. Invalid resolution 1 dpi. Using 70 instead. " when using Tess4j for OCRing Hi All, I would like to suppress the warning thrown out in Console when using Tess4j for OCRing. Please help. Tesseract uses Leptonica for some image processing internally and Leptonica thows this on console. TIA 回答1: A Workaround: Not from Leptonica(lept4j) but from Tesseract(tess4j) way. Setting the Resolution if the resolution of the image if it is less than 70. TessAPI1

How to Detect Words with TextRecognizer? It can only detect TextBlocks

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问题 I am able to detect TextBlock like Cyan color block in below image but I want to detect Word with TextRecogniger 回答1: If you have a look at the reference (https://developers.google.com/android/reference/com/google/android/gms/vision/text/TextBlock), you will see that in the recognized block you will have a list of lines which has a list of elements. Then you should get the word in your Processor class with something like this: @Override public void receiveDetections(Detector.Detections

How to read one column texts with Google Cloud Vision API

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问题 I have the next document image When I try to convert the image to text, the result is the next: Top Text Ref: Rad: Dte: Ddo: Ejecutivo 76520400300 Banco de Bogotá Luz Adriana Botton Text The problem is Google API recongnize it like two columns so, How can I config the Google API in order to obtain one column text? My goal is obtain: Top Text Ref:Ejecutivo Rad: 76520400300 Dte: Banco de Bogotá Ddo:Luz Adriana Botton Text 回答1: Cloud Vision API doesn't have a specific request property to specify

OCR产品应用行业

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一、OCR证件识别技术种类 OCR识别技术可谓当下人工智能领域最为火热的一项技术，在各种APP爆发式增长的同时，可以看到的是几乎所有的智能软件，开发人员如果想要提高客户人机交互的感受，那么智能识别技术是一个必选项。那么总体来说当今的ocr识别技术主要细分为以下功能：ocr综合文字识别、ocr视频文字识别、人脸识别、证件识别、票据识别、车牌Vin码识别、银行卡识别、云识别。那么今天就和大家聊聊应用广泛的证件识别。二、OCR识别技术应用背景这些年，随着移动互联网的的发展，越来越多的企业都推出了自己的移动APP，这些APP多数都涉及到个人身份证信息的输入认证（即实名认证），如果手动去输入身份证号码和姓名，速度非常慢，且用户体验非常差。为了提高在移动终端上输入身份证信息的速度和准确性，OCR证件识别技术应运而生。需要说明的是OCR证件识别不仅仅只有身份证识别，还有护照识别以及其他，但是我们今天就应用最广泛的身份证进行说明。三、OCR手机身份证号识别技术简介 OCR手机身份证号识别技术SDK可支持Android、iOS主流移动操作系统，android平台提供jar包，ios提供静态库.a文件。APP集成OCR手机身份证号识别技术SDK后，用户采用手机、平板电脑对身份证进行拍摄识别即可自动识别身份证信息 OCR手机身份证号识别技术技术还可以部署在识别服务器上，可支持Linux 32