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demo_gradio.py
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# @Author: OpenOCR
# @Contact: [email protected]
import os
import gradio as gr # gradio==4.20.0
os.environ['FLAGS_allocator_strategy'] = 'auto_growth'
import cv2
import numpy as np
import json
import time
from PIL import Image
from tools.infer_e2e import OpenOCR, check_and_download_font, draw_ocr_box_txt
drop_score = 0.4
text_sys = OpenOCR(drop_score=drop_score)
# warm up 5 times
if True:
img = np.random.uniform(0, 255, [640, 640, 3]).astype(np.uint8)
for i in range(5):
res = text_sys(img_numpy=img)
font_path = './simfang.ttf'
font_path = check_and_download_font(font_path)
def main(input_image,
det_input_size_textbox=960,
rec_drop_score=0.01,
mask_thresh=0.3,
box_thresh=0.6,
unclip_ratio=1.5,
det_score_mode='slow'):
img = input_image[:, :, ::-1]
starttime = time.time()
results, time_dict, mask = text_sys(
img_numpy=img,
return_mask=True,
det_input_size=int(det_input_size_textbox),
thresh=mask_thresh,
box_thresh=box_thresh,
unclip_ratio=unclip_ratio,
score_mode=det_score_mode)
elapse = time.time() - starttime
save_pred = json.dumps(results[0], ensure_ascii=False)
image = Image.fromarray(cv2.cvtColor(img, cv2.COLOR_BGR2RGB))
boxes = [res['points'] for res in results[0]]
txts = [res['transcription'] for res in results[0]]
scores = [res['score'] for res in results[0]]
draw_img = draw_ocr_box_txt(
image,
boxes,
txts,
scores,
drop_score=rec_drop_score,
font_path=font_path,
)
mask = mask[0, 0, :, :] > mask_thresh
return save_pred, elapse, draw_img, mask.astype('uint8') * 255
def get_all_file_names_including_subdirs(dir_path):
all_file_names = []
for root, dirs, files in os.walk(dir_path):
for file_name in files:
all_file_names.append(os.path.join(root, file_name))
file_names_only = [os.path.basename(file) for file in all_file_names]
return file_names_only
def list_image_paths(directory):
image_extensions = ('.png', '.jpg', '.jpeg', '.gif', '.bmp', '.tiff')
image_paths = []
for root, dirs, files in os.walk(directory):
for file in files:
if file.lower().endswith(image_extensions):
relative_path = os.path.relpath(os.path.join(root, file),
directory)
full_path = os.path.join(directory, relative_path)
image_paths.append(full_path)
image_paths = sorted(image_paths)
return image_paths
def find_file_in_current_dir_and_subdirs(file_name):
for root, dirs, files in os.walk('.'):
if file_name in files:
relative_path = os.path.join(root, file_name)
return relative_path
e2e_img_example = list_image_paths('./OCR_e2e_img')
if __name__ == '__main__':
css = '.image-container img { width: 100%; max-height: 320px;}'
with gr.Blocks(css=css) as demo:
gr.HTML("""
<h1 style='text-align: center;'><a href="https://github.com/Topdu/OpenOCR">OpenOCR</a></h1>
<p style='text-align: center;'>准确高效的通用 OCR 系统 （由<a href="https://fvl.fudan.edu.cn">FVL实验室</a> <a href="https://github.com/Topdu/OpenOCR">OCR Team</a> 创建）</p>"""
)
with gr.Row():
with gr.Column(scale=1):
input_image = gr.Image(label='Input image',
elem_classes=['image-container'])
examples = gr.Examples(examples=e2e_img_example,
inputs=input_image,
label='Examples')
downstream = gr.Button('Run')
# 添加参数调节组件
with gr.Column():
with gr.Row():
det_input_size_textbox = gr.Number(
label='Det Input Size',
value=960,
info='检测网络输入尺寸的最长边，默认为960。')
det_score_mode_dropdown = gr.Dropdown(
['slow', 'fast'],
value='slow',
label='Det Score Mode',
info=
'文本框的置信度计算模式，默认为 slow。slow 模式计算速度较慢，但准确度较高。fast 模式计算速度较快，但准确度较低。'
)
with gr.Row():
rec_drop_score_slider = gr.Slider(
0.0,
1.0,
value=0.4,
step=0.01,
label='Recognition Drop Score',
info='识别置信度阈值，默认值为0.4。低于该阈值的识别结果和对应的文本框被丢弃。')
mask_thresh_slider = gr.Slider(
0.0,
1.0,
value=0.3,
step=0.01,
label='Mask Threshold',
info='Mask 阈值，用于二值化 mask，默认值为0.3。如果存在文本截断时，请调低该值。')
with gr.Row():
box_thresh_slider = gr.Slider(
0.0,
1.0,
value=0.6,
step=0.01,
label='Box Threshold',
info='文本框置信度阈值，默认值为0.6。如果存在文本被漏检时，请调低该值。')
unclip_ratio_slider = gr.Slider(
1.5,
2.0,
value=1.5,
step=0.05,
label='Unclip Ratio',
info='文本框解析时的膨胀系数，默认值为1.5。值越大文本框越大。')
with gr.Column(scale=1):
img_mask = gr.Image(label='mask',
interactive=False,
elem_classes=['image-container'])
img_output = gr.Image(label=' ',
interactive=False,
elem_classes=['image-container'])
output = gr.Textbox(label='Result')
confidence = gr.Textbox(label='Latency')
downstream.click(fn=main,
inputs=[
input_image, det_input_size_textbox,
rec_drop_score_slider, mask_thresh_slider,
box_thresh_slider, unclip_ratio_slider,
det_score_mode_dropdown
],
outputs=[
output,
confidence,
img_output,
img_mask,
])
demo.launch(share=True)