OCR - Image Reader

A powerful optical character recognition (OCR) extension to capture and convert images to text

什么是OCR - Image Reader?

OCR - Image Reader是由brian.girko开发的Chrome扩展程序,该扩展的主要功能是“A powerful optical character recognition (OCR) extension to capture and convert images to text”。

扩展截图

screenshot

下载OCR - Image Reader扩展crx文件

下载OCR - Image Reader扩展crx格式的文件,手动将Chrome插件安装到浏览器中,也可以将crx文件分享给朋友,轻松安装Chrome插件。

扩展使用说明

                        This extension adds a toolbar button to your browser to perform OCR. When this action button is pressed, it allows the user to select a region in the currently active window. The extension captures the area and tries to recognize text inside this region using the internal powerful OCR engine (Tesseract engine). This extension uses the "tesseract.js" library that supports more than 100 languages, automatic text orientation, and script detection.

This extension loads the JS library on the page and removes it when you are done. This way, there is no long-term resource usage.

Notes:
1. On the first run, the extension might take a few minutes to fetch the training data from the internet. Since this resource is cached, all subsequent calls are going to be fast.
2. Optical character recognition (OCR) is slow, so this extension displays a progress bar for each detection module.
3. This extension does the OCR process offline. There is no server-side interaction. It only fetches the language training database once.
4. This tool can be used to extract the text content out of images, PDF documents, Powerpoint slides, or extract the content of a web page when user-section is forbidden.
5. If the text extraction confidence is low, the extension inverts the image and retries (particularly useful on the dark theme)
6. If the text extraction is not accurate, you can modify the image and drop it into the interface to retry.

Change Logs:
Version 0.2.4:
Supports browser-level page zooming and OS-level screen zooming
Adds image language detection (still beta) (slow operation)                    

扩展基本信息

名称 OCR - Image Reader OCR - Image Reader
ID bhbhjjkcoghibhibegcmbomkbakkpdbo
官方URL https://chromewebstore.google.com/detail/ocr-image-reader/bhbhjjkcoghibhibegcmbomkbakkpdbo
简介 A powerful optical character recognition (OCR) extension to capture and convert images to text
文件大小 2.52 MB
安装次数 191,931
当前版本 0.3.8
更新时间 2023-11-22
上架时间 2019-06-16
评分 3.86/5 共167次评分
开发者 brian.girko
电子邮箱 [email protected]
付费类型 free
扩展官网 https://webextension.org/listing/ocr.html
帮助页面URL https://webextension.org/listing/ocr.html
支持的语言 en
manifest.json
{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "version": "0.3.8",
    "name": "OCR - Image Reader",
    "description": "A powerful optical character recognition (OCR) extension to capture and convert images to text",
    "permissions": [
        "storage",
        "unlimitedStorage",
        "activeTab",
        "notifications",
        "scripting"
    ],
    "host_permissions": [
        "https:\/\/tessdata.projectnaptha.com\/*.gz",
        "https:\/\/github.com\/naptha\/tessdata\/blob\/gh-pages\/*.gz?raw=true"
    ],
    "homepage_url": "https:\/\/webextension.org\/listing\/ocr.html",
    "background": {
        "service_worker": "worker.js"
    },
    "icons": {
        "16": "data\/icons\/16.png",
        "32": "data\/icons\/32.png",
        "48": "data\/icons\/48.png",
        "64": "data\/icons\/64.png",
        "128": "data\/icons\/128.png",
        "256": "data\/icons\/256.png",
        "512": "data\/icons\/512.png"
    },
    "action": [],
    "content_security_policy": {
        "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'"
    },
    "web_accessible_resources": [
        {
            "resources": [
                "\/data\/engine\/index.html"
            ],
            "matches": [
                ""
            ]
        }
    ]
}