ocr

Why Tesseract OCR library (iOS) cannot recognize text at all?

由 你离开我真会死。 提交于 2019-12-17 17:31:57
问题 I'm trying to use Tesseract OCR library in my iOS application. I downloaded tesseract-ios library from github and when I tried to recognize a simple text image I got garbage instead. Here is an image of what I tried to recognize: I got unreadable text: T0I1101T0W KIR1 H1I1101T0W KIR1 H1I1101T0W CIBEPS H1 ES PBHY P306 EHH11 133I R1 11335 11I1H1 19 13S SYIL 3B19 M H300H1911 H1113 AIR1 J1 OIII 3I9SH5H133IS 13V9 I1 Q1H211 E015 19 W331 H1 111SW Why Tesseract can't recognise even simple image? Here

iOS Tesseract OCR Image Preperation

由 寵の児 提交于 2019-12-17 17:29:28
问题 I would like to implement an OCR application that would recognize text from Photos. I succeeded in Compiling and Integration the Tesseract Engine in iOS, I succeeded in getting reasonable detection when photographing clear documents (or a photoshot of this text from the screen) but for other text such as signposts, shop signs, colour background, the detection failed. The Question is What kind of image processing preparations are necessary to get better recognition. For example, I expect that

How to implement Tesseract to run with project in Visual Studio 2010

由 萝らか妹 提交于 2019-12-17 15:51:56
问题 I have a C++ project in Visual Studio 2010 and wish to use OCR. I came across many "tutorials" for Tesseract but sadly, all I got was a headache and wasted time. In my project I have an image stored as a Mat . One solution to my problem is to save this Mat as an image (image.jpg for example) and then call Tesseract executable file like this: system("tesseract.exe image.jpg out"); Which gets me an output out.txt and then I call infile.open ("out.txt"); to read the output from Tesseract. It is

What are good algorithms for vehicle license plate detection? [closed]

由 非 Y 不嫁゛ 提交于 2019-12-17 10:22:11
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 last year . Background For my final project at university, I'm developing a vehicle license plate detection application. I consider myself an intermediate programmer, however my mathematics knowledge lacks anything above secondary school, which makes producing the right formulas harder than it

How to recognize vehicle license / number plate (ANPR) from an image? [closed]

由 有些话、适合烂在心里 提交于 2019-12-17 07:59:07
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 last year . I have a web site that allows users to upload images of cars and I would like to put a privacy filter in place to detect registration plates on the vehicle and blur them. The blurring is not a problem but is there a library or component (open source preferred) that will help with

C# OCR 文字识别[初级]

由 情到浓时终转凉″ 提交于 2019-12-17 06:55:27
好久没更新blog了；工作任务紧,本来是双休,结果变成了单休;唯一个星期天,还要补充睡眠... 这个星期的事了;早上迟到了,因为没赶上车;一到公司,头头就过来找我,我还以为会说我迟到的事儿,结果不是,原来他要我做一个文字识别的小程序; 因为信息源的关键信息被更新为gif图片了,原来是文本,所以很好处理,但是变成了图片后,就麻烦了;难怪他急忙找到我; 看了看源图片，发现比较好处理,因为是未变形的图形,毕竟要用图片显示文字具体信息,如果加入大量干扰码和特殊变形体会严重影响阅读,所以;这样的图片可以100%识别,就用原始匹配的算法.经过一个下午的努力,下班时加了10分钟班---搞定了; 虽然搞定了这个来源的图片文字识别,但是如果万一来源图片做了变形怎么办?我觉得这个问题很难解决，象腾讯网站的登陆,竟然都用上了中文字符,加了不少干扰码;要正确识别实在是太难了.. 前阵子到 01cn.net论坛上看了看几位高手大哥的讨论，是关于图片验证码识别的, savetime 这个DX也拿出当年的'小作'一个,车牌识别; 自己对这个图形识别,还是一个超级门外汉;星期六到网上找了一通资料,最后忙到这个时候"5:35:08"做了一个初级的ocr程序,源码奉上,仅供娱乐; 这个程序算法和功能和公司开发的那个有天壤之别.这个程序的算法很简单,有兴趣朋友可以给我留言讨论. 界面图: 源码下载

OCR with the Tesseract interface

由 余生颓废 提交于 2019-12-17 06:27:21
问题 How do you OCR an tiff file using Tesseract's interface in c#? Currently I only know how to do it using the executable. 回答1: The source code seemed to be geared for an executable, you might need to rewire stuffs a bit so it would build as a DLL instead. I don't have much experience with Visual C++ but I think it shouldn't be too hard with some research. My guess is that someone might have had made a library version already, you should try Google. Once you have tesseract-ocr code in a DLL file

Pytesseract OCR multiple config options

由 寵の児 提交于 2019-12-17 03:06:31
问题 I am having some problems with pytesseract. I need to configure Tesseract to that it is configured to accept single digits while also only being able to accept numbers as the number zero is often confused with an 'O'. Like this: target = pytesseract.image_to_string(im,config='-psm 7',config='outputbase digits') Many thanks, Niall 回答1: tesseract-4.0.0a supports below psm . If you want to have single character recognition, set psm = 10 . And if your text consists of numbers only, you can set

Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]

由 人盡茶涼 提交于 2019-12-17 02:53:11
问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 6 years ago . Have any programming methods have been used to defeat reCAPTCHA? I'm interested in seeing evidence and potentially demonstrations that reCAPTCHA in

OCR数据闭环任务

由 喜夏-厌秋 提交于 2019-12-16 05:01:43
OCR数据闭环任务 目录介绍 文件夹 备注 classify 基于pytorch的分类网络，用于对新能源车牌，非新能源车牌进行初步分类 crnn 基于pyrorch的crnn文字识别网络，用于训练文字识别模型 doc 数据闭环总结文档和清洗执行时的文件挂载对应关系 scripts 数据闭环，脚本清洗文件，其中business_license，green_plate，invoice_classify有单独的清洗脚本，其他如火车票，定额票，增值税发票，预分类由于暂无标签文件，清洗脚本使用通用的 test 基于keras的crnn文字识别推断网络，用于新能源车牌识别。 train 基于keras的crnn文字识别训练网络，用于新能源车牌识别。 utils 用于新能源车牌闭环数据整理的标签映射，字符检查等 VOC2007_xml 目标检测xml样例文件 脚本清洗 scripts : business_license green_plate invoice_classify run.sh wash.py write_xml.py 脚本清洗流程图 Created with Raphaël 2.2.0 开始清洗 执行清洗处理 清洗成功？ 结束任务 补清洗 yes no 来源： CSDN 作者： Jincenter 链接： https://blog.csdn.net/confuciust
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