eynollah/src/eynollah/cli/cli_ocr.py
2026-05-19 03:39:59 +02:00

111 lines
3.4 KiB
Python

import click
@click.command(context_settings=dict(
help_option_names=['-h', '--help'],
show_default=True))
@click.option(
"--image",
"-i",
help="input image filename",
type=click.Path(exists=True, dir_okay=False),
)
@click.option(
"--dir_in",
"-di",
help="directory of input images (instead of --image)",
type=click.Path(exists=True, file_okay=False),
)
@click.option(
"--dir_in_bin",
"-dib",
help=("directory of binarized images (in addition to --dir_in for RGB images; filename stems must match the RGB image files, with '.png'. \n Perform prediction using both RGB and binary images. (This may improve results for certain document images.)"),
type=click.Path(exists=True, file_okay=False),
)
@click.option(
"--dir_xmls",
"-dx",
help="directory of input PAGE-XML files (in addition to --dir_in; filename stems must match the image files, with '.xml' suffix).",
type=click.Path(exists=True, file_okay=False),
required=True,
)
@click.option(
"--out",
"-o",
help="directory for output PAGE-XML files",
type=click.Path(exists=True, file_okay=False),
required=True,
)
@click.option(
"--dir_out_image_text",
"-doit",
help="directory for output images, newly rendered with predicted text",
type=click.Path(exists=True, file_okay=False),
)
@click.option(
"--overwrite",
"-O",
help="overwrite (instead of skipping) if output xml exists",
is_flag=True,
)
@click.option(
"--tr_ocr",
"-trocr",
is_flag=True,
help="use transformer OCR (instead of classic CNN-RNN) model",
)
@click.option(
"--do_not_mask_with_textline_contour",
"-nmtc",
is_flag=True,
help="skip masking each cropped textline image with its corresponding textline contour",
)
@click.option(
"--batch_size",
"-bs",
default=0,
type=click.IntRange(min=0),
help="number of inference batch size. Default b_s for trocr and cnn_rnn models are 2 and 8 respectively",
)
@click.option(
"--min_conf_value_of_textline_text",
"-min_conf",
default=0.3,
type=click.FloatRange(min=0.0, max=1.0),
help="minimum OCR confidence threshold. Text lines with a lower confidence value will not be included in the output XML file.",
)
@click.pass_context
def ocr_cli(
ctx,
image,
dir_in,
dir_in_bin,
dir_xmls,
out,
dir_out_image_text,
overwrite,
tr_ocr,
do_not_mask_with_textline_contour,
batch_size,
min_conf_value_of_textline_text,
):
"""
Recognize text with a CNN/RNN or transformer ML model.
"""
assert bool(image) != bool(dir_in), "Either -i (single image) or -di (directory) must be provided, but not both."
from ..eynollah_ocr import Eynollah_ocr
eynollah_ocr = Eynollah_ocr(
model_zoo=ctx.obj.model_zoo,
device=ctx.obj.device,
tr_ocr=tr_ocr,
do_not_mask_with_textline_contour=do_not_mask_with_textline_contour,
batch_size=batch_size,
min_conf_value_of_textline_text=min_conf_value_of_textline_text,
)
eynollah_ocr.run(overwrite=overwrite,
dir_in=dir_in,
dir_in_bin=dir_in_bin,
image_filename=image,
dir_xmls=dir_xmls,
dir_out_image_text=dir_out_image_text,
dir_out=out,
)