abcprintf / ocr-viewer

Web application for easy and convenient viewing of OCR results.

ocr-viewer

Web application for easy and convenient viewing of OCR results.
You can easily open the image (drag and drop) and draw a text area on the image in real time (in the browser) so you can select and view only the text area you want.

Demo using stub data - https://whwnsdlr1.github.io/ocr-viewer/

install

git clone https://github.com/whwnsdlr1/ocr-viewer
cd ocr-viewer
yarn install
yarn run serve

and access to http://localhost:port

Demo (own OCR)

1. Implement your own recognizeImpl function in ocr-viewer> src> js> recognize.js. See the comment of the function.
2. Input the image in the web app(http://localhost:port)

Demo (PaddleOCR)

• https://github.com/PaddlePaddle/PaddleOCR

1. Install python packages and Run websocket server

cd backend_example
pip install -r requirements_paddle_ocr.txt
python websocket_paddle_ocr.py

2. Input the image in the web app(http://localhost:port)

you can change language in 'websocket_paddle_ocr.py'. default is English

Demo (EasyOCR)

• https://github.com/JaidedAI/EasyOCR

1. Install pytorch
2. Install python packages and Run websocket server

cd backend_example
pip install -r requirements_easy_ocr.txt
python websocket_easy_ocr.py

3. Input the image in the web app(http://localhost:port)

you can change language in 'websocket_easy_ocr.py'. default is English

Control

• Image Input
  • Drag and drop
  • Using File dialog (top input element)
• Image Frame
  • left mouse & touch drag - panning
  • mouse wheel & pinch to zoom - zoom in / out
  • right mouse drag - adjust brightness and contrast
• Result Frame
  • You can search for the text you want. Only the searched text is displayed above the image.
  • Hover over the text badge to see the probability.
  • When you click a text badge, the clicked text is highlighted and displayed above the image.

options

• Modify the code below to change the box color.

// ocr-viewer > src > components > Frame.vue
<script>
export default {
    ...
    data: function () {
        return {
            ...
            style: {
                boxColor: '#FFFF00',
                highlightBoxColor: '#FF0000'
            }
            ...
        }
    }
    ...
}
</script>

• Modify the code below to change the box line width.

// ocr-viewer > src > plugins > cornerstoneToolsPlugin.js
export default {
  install: function (Vue) {
    ...
    cornerstoneTools.toolStyle.setToolWidth(2);
    ...
  }
}

Browser support - (tested)

• Google Chrome 89+
• Mozilla FireFox 85+