python-tesseract

pytesseract: Can't access Image with “Image.open” “Errno 2” error

由 我的未来我决定 提交于 2021-01-27 20:32:32
问题 I'm trying to use pytesseract for the first time. I'm also not so confortable with python. I've created a new folder called python_test on my desktop. I'm on Mac. In this folder I have a test.png file and a py script : from pytesseract import image_to_string from PIL import Image print image_to_string(Image.open('test.png')) print image_to_string(Image.open('test-english.jpg'), lang='eng') So from my terminal, I'm going into the python_test folder then I'm running python read.py then I have

Why does tesseract fail to read text off this simple image?

由 删除回忆录丶 提交于 2021-01-24 03:08:51
问题 I have read mountains of posts on pytesseract, but I cannot get it to read text off a dead simple image; It returns an empty string. Here is the image: I have tried scaling it, grayscaling it, and adjusting the contrast, thresholding, blurring, everything it says in other posts, but my problem is that I don't know what the OCR wants to work better. Does it want blurry text? High contrast? Code to try: import pytesseract from PIL import Image print pytesseract.image_to_string(Image.open(IMAGE

Selenium(十三)：验证码的处理、WebDriver原理

由 烂漫一生 提交于 2021-01-02 22:56:30
1. 验证码的处理 对于Web应用来说，大部分的系统在用户登录时都要求用户输入验证码。验证码的类型很多，有字母数字的、有汉字的，甚至还需要用户输入一道算术题的答案的。对于系统来说，使用验证码可以有效地防止采用机器猜测方法对口令的刺探，在一定程度上增加了安全性。 但对于测试人员来说，不管是进行性能测试还是自动化测试，都是一个比较棘手的问题。在WebDriver中并没有提供相应的方法来处理验证码，这里我就根据自己的经验来谈谈处理验证码的几种常见方法。 1.1 去掉验证码 这里最简单的方法，对于开发人员来说，只是把验证码相关的代码注释掉即可。如果是在测试环境，这样做可以省去测试人员不少的麻烦。但如果自动化脚本是在正式环境测试，那么这种做法就给系统带来了一定的风险。 1.2 设置万能验证码 去掉验证码的主要问题是安全，为了应对在线系统的安全威胁，可以在修改程序时不取消验证码，而在程序中留一个“后门”，即设置一个“万能验证码”。只要用户输入这个“万能验证码”，程序就认为验证通过，否则就判断用户输入的验证码是否正确。 设计万能验证码的方式非常简单，只需要对用户的输入信息多加一个逻辑判断，下面通过例子演示。 from random import randint # 生成一个1000到9999之间的随机整数 verify = randint(1000,9999 ) print (u "

Train Tesseract to label icons

由 馋奶兔 提交于 2020-12-29 04:55:59
问题 I'm trying to create training data for Tesseract 4.0 to identify icons (like, comment, share, save) in screenshots. This is a sample screenshot: I would like to fine tune the Tesseract to achieve output as below: Like 147 Comment 29 Saved 5 Actions 58 Actions Profile Visits 24 Follows 2 I have followed step-by-step as stated in https://pretius.com/how-to-prepare-training-files-for-tesseract-ocr-and-improve-characters-recognition/ I modified the box file as below: - Heart : Like - Speech

Moroccan License Plate Recognition (LPR) using OPENALPR, OpenCV and Tesseract

由 爷，独闯天下 提交于 2020-12-27 05:28:50
问题 I work currently on my project of end of study: the title of my project is "the detection in real time of the Moroccan license plates of vehicles ( ALPR )", I tried to post this my issue in group ALPR unfortunately ,i received no reply . i decide to contact you when i see your video in youtube,I want to inform you that I have many problem with Moroccan license plates. this is an example of Moroccan license plates: Morrocan alpr i tried to use OPENALPR : When I run the command line " alpr

Moroccan License Plate Recognition (LPR) using OPENALPR, OpenCV and Tesseract

由 我怕爱的太早我们不能终老 提交于 2020-12-27 05:28:00
问题 I work currently on my project of end of study: the title of my project is "the detection in real time of the Moroccan license plates of vehicles ( ALPR )", I tried to post this my issue in group ALPR unfortunately ,i received no reply . i decide to contact you when i see your video in youtube,I want to inform you that I have many problem with Moroccan license plates. this is an example of Moroccan license plates: Morrocan alpr i tried to use OPENALPR : When I run the command line " alpr

Tesseract quiet mode

由 不羁的心 提交于 2020-12-05 12:26:35
问题 Under Ubuntu I use tesseract-ocr in version 3.02. Especially the wrapper pytesseract for python, but this question is also about the commandline-tool. In the FAQ under https://code.google.com/p/tesseract-ocr/wiki/FAQ#How_can_I_make_the_error_messages_go_to_tesseract.log_instead_of is written that there is a option/config-file "quiet" supressing the info line of tesseract. However, when I call tesseract command line with this option, it says "read_params_file: Can't open quiet" And it is right
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