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# Copyright (c) OpenMMLab. All rights reserved.
import warnings
import mmcv
from mmocr.core import imshow_pred_boundary
class TextDetectorMixin:
"""Base class for text detector, only to show results.
Args:
show_score (bool): Whether to show text instance score.
"""
def __init__(self, show_score):
self.show_score = show_score
def show_result(self,
img,
result,
score_thr=0.5,
bbox_color='green',
text_color='green',
thickness=1,
font_scale=0.5,
win_name='',
show=False,
wait_time=0,
out_file=None):
"""Draw `result` over `img`.
Args:
img (str or Tensor): The image to be displayed.
result (dict): The results to draw over `img`.
score_thr (float, optional): Minimum score of bboxes to be shown.
Default: 0.3.
bbox_color (str or tuple or :obj:`Color`): Color of bbox lines.
text_color (str or tuple or :obj:`Color`): Color of texts.
thickness (int): Thickness of lines.
font_scale (float): Font scales of texts.
win_name (str): The window name.
wait_time (int): Value of waitKey param.
Default: 0.
show (bool): Whether to show the image.
Default: False.
out_file (str or None): The filename to write the image.
Default: None.imshow_pred_boundary`
"""
img = mmcv.imread(img)
img = img.copy()
boundaries = None
labels = None
if 'boundary_result' in result.keys():
boundaries = result['boundary_result']
labels = [0] * len(boundaries)
# if out_file specified, do not show image in window
if out_file is not None:
show = False
# draw bounding boxes
if boundaries is not None:
imshow_pred_boundary(
img,
boundaries,
labels,
score_thr=score_thr,
boundary_color=bbox_color,
text_color=text_color,
thickness=thickness,
font_scale=font_scale,
win_name=win_name,
show=show,
wait_time=wait_time,
out_file=out_file,
show_score=self.show_score)
if not (show or out_file):
warnings.warn('show==False and out_file is not specified, '
'result image will be returned')
return img
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