ParagraphLabelerApp

Implementation of адфыл application for half automatic labeling paragraphs in image of document

Start work

• Install python3 and pip (if you haven't installed it yet)
• Install some packages via pip (pip install -r requirements.txt)
• Install tesseract for your OS and specify path to it:

pytesseract.pytesseract.tesseract_cmd = r'C:/Program Files/Tesseract-OCR/tesseract' # путь к тессеракту

• Move images for labeling to data/images folder
• Start initialize.py script:

python initialize.py

• Edit labels dictionary in app.py file for your task

labels = {
	'header': (255, 0, 0),
	'text': (0, 255, 0),
	'list': (0, 0, 255),
}

• Launch application using python app.py
• Go to localhost:5000 and label your images

Controls

Get next bounding box

Press space key

Add bounding box

While holding the left mouse button, move the cursor to another point and release the mouse button. Select the desired label in the list that appears or press the number of this label on the keyboard.

Remove bounding box

Hover over the bounding box and click the right mouse button (for smartphones: double-click on the bounding box).

Move bounding box

Hover over the bounding box, hold the left mouse button, move bbox to necessary point and release the mouse button.

Resize bounding box

Hover over the border of the bounding rectangle, hold down the left mouse button, drag the border to the desired location and release the button.

Scale image

Press + or - key to zoom in and out respectively

Remove all bounding boxes

Press to the reset button.

Save bounding boxes

Press to the save button and labeled image will move from images to the labels folder with creating .json file and .jpg image with bounding boxes.