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paddleocr_v3.py
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README.md

PaddleOCR v3 : Awesome multilingual OCR toolkits based on PaddlePaddle

Input

input image

(from https://github.com/PaddlePaddle/PaddleOCR/tree/dygraph/doc/imgs)


Output

output_image


Usage

Automatically downloads the onnx and prototxt files on the first run. It is necessary to be connected to the Internet while downloading.

For the sample image,

$ python paddleocr_v3.py
(ex on CPU)  $ python paddleocr_v3.py -e 0
(ex on BLAS) $ python paddleocr_v3.py -e 1
(ex on GPU)  $ python paddleocr_v3.py -e 2

If you want to specify the input image, put the image path after the --input option.
You can use --savepath option to change the name of the output file to save.

$ python3 paddleocr_v3.py --input IMAGE_PATH --savepath SAVE_IMAGE_PATH
$ python3 paddleocr_v3.py -i IMAGE_PATH -s SAVE_IMAGE_PATH

By adding the --video option, you can input the video.

$ python3 paddleocr_v3.py --video VIDEO_PATH --savepath SAVE_VIDEO_PATH
$ python3 paddleocr_v3.py -v VIDEO_PATH -s SAVE_VIDEO_PATH
(ex) $ python3 paddleocr_v3.py --video input.mp4 --savepath output.mp4

By adding the --case option, you can choose model size by case.

$ python3 paddleocr_v3.py --case CASE
$ python3 paddleocr_v3.py -c CASE
(ex) $ python3 paddleocr_v3.py --case mobile

The prepared language specifications are as follows.

  • mobile
  • server (default)

By adding the --det_limit_type and --det_limit_side_len option, You can limit the size of the input image for text detection. --det_limit_type is max or min and --det_limit_side_len is a positive integer, generally set to a multiple of 32, such as 960. The default setting of the parameters is --det_limit_type='max', --det_limit_side_len=1920. Indicates that the longest side of the network input image cannot exceed 1920, If this value is exceeded, the image will be resized with the same width ratio to ensure that the longest side is det_limit_side_len. Set as --det_limit_type='min', --det_limit_side_len=960 it means that the shortest side of the image is limited to 960.

$ python3 paddleocr_v3.py -lt DET_LIMIT_TYPE -ll DET_LIMIT_SIDE_LEN
$ python3 paddleocr_v3.py  --det_limit_type DET_LIMIT_TYPE --det_limit_side_len DET_LIMIT_SIDE_LEN
(ex) $ python3 paddleocr_v3.py -lt max -ll 1920
(ex) $ python3 paddleocr_v3.py  --det_limit_type min --det_limit_side_len 960

About font file

Requires Japanese font. The default specification for each OS is as follows.

    if sys.platform == "win32":
        # Windows
        dc['vis_font_path'] = 'C:/windows/Fonts/meiryo.ttc'
    elif sys.platform == "darwin":
        # Mac OS
        dc['vis_font_path'] = '/System/Library/Fonts/ヒラギノ丸ゴ ProN W4.ttc'
    else:
        # Linux
        dc['vis_font_path'] = '/usr/share/fonts/opentype/ipaexfont-gothic/ipaexg.ttf'

If the Japanese font of the above path does not exist, please prepare it as described or change the specification in the program. In case of linux, you can get the target font by executing the following command.

apt install fonts-ipaexfont

Reference

PaddleOCR : Awesome multilingual OCR toolkits based on PaddlePaddle


Framework

Pytorch


Model Format

ONNX opset = 10


Netron