From 388af9c19f2a15289a05c01a198d26edee80243e Mon Sep 17 00:00:00 2001 From: geekpi Date: Mon, 15 Mar 2021 09:08:06 +0800 Subject: [PATCH] translated --- ...ract Text From Images and PDFs on Linux.md | 105 ------------------ ...ract Text From Images and PDFs on Linux.md | 105 ++++++++++++++++++ 2 files changed, 105 insertions(+), 105 deletions(-) delete mode 100644 sources/tech/20210309 Use gImageReader to Extract Text From Images and PDFs on Linux.md create mode 100644 translated/tech/20210309 Use gImageReader to Extract Text From Images and PDFs on Linux.md diff --git a/sources/tech/20210309 Use gImageReader to Extract Text From Images and PDFs on Linux.md b/sources/tech/20210309 Use gImageReader to Extract Text From Images and PDFs on Linux.md deleted file mode 100644 index 98f9cbcdd4..0000000000 --- a/sources/tech/20210309 Use gImageReader to Extract Text From Images and PDFs on Linux.md +++ /dev/null @@ -1,105 +0,0 @@ -[#]: subject: (Use gImageReader to Extract Text From Images and PDFs on Linux) -[#]: via: (https://itsfoss.com/gimagereader-ocr/) -[#]: author: (Ankush Das https://itsfoss.com/author/ankush/) -[#]: collector: (lujun9972) -[#]: translator: (geekpi) -[#]: reviewer: ( ) -[#]: publisher: ( ) -[#]: url: ( ) - -Use gImageReader to Extract Text From Images and PDFs on Linux -====== - -_Brief: gImageReader is a GUI tool to utilize tesseract OCR engine for extracting texts from images and PDF files in Linux._ - -[gImageReader][1] is a front-end for [Tesseract Open Source OCR Engine][2]. _Tesseract_ was originally developed at HP and then was open-sourced in 2006. - -Basically, the OCR (Optical Character Recognition) engine lets you scan texts from a picture or a file (PDF). It can detect several languages by default and also supports scanning through Unicode characters. - -However, the Tesseract by itself is a command-line tool without any GUI. So, here, gImageReader comes to the rescue to let any user utilize it to extract text from images and files. - -Let me highlight a few things about it while mentioning my experience with it for the time I tested it out. - -### gImageReader: A Cross-Platform Front-End to Tesseract OCR - -![][3] - -To simplify things, gImageReader comes in handy to extract text from a PDF file or an image that contains any kind of text. - -Whether you need it for spellcheck or translation, it should be useful for a specific group of users. - -To sum up the features in a list, here’s what you can do with it: - - * Add PDF documents and images from disk, scanning devices, clipboard and screenshots - * Ability to rotate images - * Common image controls to adjust brightness, contrast, and resolution - * Scan images directly through the app - * Ability to process multiple images or files in one go - * Manual or automatic recognition area definition - * Recognize to plain text or to [hOCR][4] documents - * Editor to display the recognized text - * Can spellcheck the text extracted - * Convert/Export to PDF documents from hOCR document - * Export extracted text as a .txt file - * Cross-platform (Windows) - - - -### Installing gImageReader on Linux - -**Note**: _You need to explicitly install Tesseract language packs to detect from images/files from your software manager._ - -![][5] - -You can find gImageReader in the default repositories for some Linux distributions like Fedora and Debian. - -For Ubuntu, you need to add a PPA and then install it. To do that, here’s what you need to type in the terminal: - -``` -sudo add-apt-repository ppa:sandromani/gimagereader -sudo apt update -sudo apt install gimagereader -``` - -You can also find it for openSUSE from its build service and [AUR][6] will be the place for Arch Linux users. - -All the links to the repositories and the packages can be found in their [GitHub page][1]. - -[gImageReader][1] - -### Experience with gImageReader - -gImageReader is a quite useful tool for extracting texts from images when you need them. It works great when you try from a PDF file. - -For extracting images from a picture shot on a smartphone, the detection was close but a bit inaccurate. Maybe when you scan something, recognition of characters from the file could be better. - -So, you’ll have to try it for yourself to see how well it works for your use-case. I tried it on Linux Mint 20.1 (based on Ubuntu 20.04). - -I just had an issue to manage languages from the settings and I didn’t get a quick solution for that. If you encounter the issue, you might want to troubleshoot it and explore more about it how to fix it. - -![][7] - -Other than that, it worked just fine. - -Do give it a try and let me know how it worked for you! If you know of something similar (and better), do let me know about it in the comments below. - --------------------------------------------------------------------------------- - -via: https://itsfoss.com/gimagereader-ocr/ - -作者：[Ankush Das][a] -选题：[lujun9972][b] -译者：[译者ID](https://github.com/译者ID) -校对：[校对者ID](https://github.com/校对者ID) - -本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出 - -[a]: https://itsfoss.com/author/ankush/ -[b]: https://github.com/lujun9972 -[1]: https://github.com/manisandro/gImageReader -[2]: https://tesseract-ocr.github.io/ -[3]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2021/03/gImageReader.png?resize=800%2C456&ssl=1 -[4]: https://en.wikipedia.org/wiki/HOCR -[5]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2021/03/tesseract-language-pack.jpg?resize=800%2C620&ssl=1 -[6]: https://itsfoss.com/aur-arch-linux/ -[7]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2021/03/gImageReader-1.jpg?resize=800%2C460&ssl=1 diff --git a/translated/tech/20210309 Use gImageReader to Extract Text From Images and PDFs on Linux.md b/translated/tech/20210309 Use gImageReader to Extract Text From Images and PDFs on Linux.md new file mode 100644 index 0000000000..ec6d23d4dc --- /dev/null +++ b/translated/tech/20210309 Use gImageReader to Extract Text From Images and PDFs on Linux.md @@ -0,0 +1,105 @@ +[#]: subject: (Use gImageReader to Extract Text From Images and PDFs on Linux) +[#]: via: (https://itsfoss.com/gimagereader-ocr/) +[#]: author: (Ankush Das https://itsfoss.com/author/ankush/) +[#]: collector: (lujun9972) +[#]: translator: (geekpi) +[#]: reviewer: ( ) +[#]: publisher: ( ) +[#]: url: ( ) + +在 Linux 上使用 gImageReader 从图像和 PDF 中提取文本 +====== + +_简介：gImageReader 是一个 GUI 工具，用于在 Linux 中利用 Tesseract OCR 引擎从图像和 PDF 文件中提取文本。_ + +[gImageReader][1] 是 [Tesseract 开源 OCR 引擎][2]的一个前端。_Tesseract_ 最初是由 HP 公司开发的，然后在 2006 年开源。 + +基本上，OCR（光学字符识别）引擎可以让你从图片或文件（PDF）中扫描文本。默认情况下，它可以检测几种语言，还支持通过 Unicode 字符扫描。 + +然而，Tesseract 本身是一个没有任何 GUI 的命令行工具。因此，gImageReader 就来解决这点，它可以让任何用户使用它从图像和文件中提取文本。 + +让我重点介绍一些有关它的内容，同时说下我在测试期间的使用经验。 + +### gImageReader：一个跨平台的 Tesseract OCR 前端 + +![][3] + +为了简化事情，gImageReader 在从 PDF 文件或包含任何类型文本的图像中提取文本时非常方便。 + +无论你是需要它来进行拼写检查还是翻译，它都应该对特定的用户群体有用。 + +在列表总结下功能，这里是你可以用它做的事情： + + * 从磁盘、扫描设备、剪贴板和截图中添加 PDF 文档和图像 + * 能够旋转图像 + * 常用的图像控制，用于调整亮度、对比度和分辨率。 + * 直接通过应用扫描图像 + * 能够一次性处理多个图像或文件 + * 手动或自动识别区域定义 + * 识别纯文本或 [hOCR][4] 文档 + * 编辑器显示识别的文本 + * 可对对提取的文本进行拼写检查 + * 从 hOCR 文件转换/导出为 PDF 文件 + * 将提取的文本导出为 .txt 文件 + * 跨平台（Windows） + + + +### 在 Linux 上安装 gImageReader + +**注意**：_你需要安装 Tesseract 语言包，才能从软件管理器中的图像/文件中进行检测。_ + +![][5] + +你可以在一些 Linux 发行版如 Fedora 和 Debian 的默认仓库中找到 gImageReader。 + +对于 Ubuntu，你需要添加一个 PPA，然后安装它。要做到这点，下面是你需要在终端中输入的内容： + +``` +sudo add-apt-repository ppa:sandromani/gimagereader +sudo apt update +sudo apt install gimagereader +``` + +你也可以从 openSUSE 的构建服务中找到它，Arch Linux 用户可在 [AUR][6] 中找到。 + +所有的仓库和包的链接都可以在他们的 [GitHub 页面][1]中找到。 + +[gImageReader][1] + +### gImageReader 使用经验 + +当你需要从图像中提取文本时，gImageReader 是一个相当有用的工具。当你尝试从 PDF 文件中提取文本时，它的效果非常好。 + +对于从智能手机拍摄的图片中提取，检测很接近，但有点不准确。也许当你进行扫描时，从文件中识别字符可能会更好。 + +所以，你需要亲自尝试一下，看看它是否对你而言工作良好。我在 Linux Mint 20.1（基于 Ubuntu 20.04）上试过。 + +我只遇到了一个从设置中管理语言的问题，我没有得到一个快速的解决方案。如果你遇到此问题，那么可能需要对其进行故障排除，并进一步了解如何解决该问题。 + +![][7] + +除此之外，它工作良好。 + +试试吧，让我知道它是如何为你服务的！如果你知道类似的东西（和更好的），请在下面的评论中告诉我。 + +-------------------------------------------------------------------------------- + +via: https://itsfoss.com/gimagereader-ocr/ + +作者：[Ankush Das][a] +选题：[lujun9972][b] +译者：[geekpi](https://github.com/geekpi) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出 + +[a]: https://itsfoss.com/author/ankush/ +[b]: https://github.com/lujun9972 +[1]: https://github.com/manisandro/gImageReader +[2]: https://tesseract-ocr.github.io/ +[3]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2021/03/gImageReader.png?resize=800%2C456&ssl=1 +[4]: https://en.wikipedia.org/wiki/HOCR +[5]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2021/03/tesseract-language-pack.jpg?resize=800%2C620&ssl=1 +[6]: https://itsfoss.com/aur-arch-linux/ +[7]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2021/03/gImageReader-1.jpg?resize=800%2C460&ssl=1