image_label

A tool to help labeling images

How to use

$python cv2_label.py -i $images_dir -o $output_dir

keyboard shortcut

• n: go to next image
• c: abort
• esc: stop
• backspace: cancel the latest drawn rectangle

Use mouse to draw rectangles for labeled region, mouse down to decide the first point of a rectangle, mouse up to decide the second point of the rectangle

merge json file into one

Sometimes you need a json file with all labeled json

$python merge_json_file.py $json_files_dir

This tool will merge the json files in a directory into one, merged.json.