[Python] 純文本查看 復制代碼import paddlehub as hub

import cv2,copy,os

import time

class Ocr():

def __init__(self,mobile):

if mobile=='否':

# 加載移動端預訓練模型

self.ocr = hub.Module(name="chinese_ocr_db_crnn_mobile")

else:

# 服務端可以加載大模型，效果更好

self.ocr = hub.Module(name="chinese_ocr_db_crnn_server")

def get_text(self,image,visualization,gpu):

if gpu ==True:

os.environ["CUDA_VISIBLE_DEVICES"] = "1"

text=''

results = self.ocr.recognize_text(

images=[image], # 圖片數據，ndarray.shape 為 [H, W, C]，BGR格式；

use_gpu=gpu, # 是否使用 GPU；若使用GPU，請先設置CUDA_VISIBLE_DEVICES環境變量

output_dir='ocr_result', # 圖片的保存路徑，默認設為 ocr_result；

visualization=visualization, # 是否將識別結果保存為圖片文件；

box_thresh=0.5, # 檢測文本框置信度的閾值；

text_thresh=0.5) # 識別中文文本置信度的閾值；

data=results[0]['data']

save_path = results[0]['save_path']

for infomation in data:

text=text+' '+infomation['text']

return text,save_path

if __name__ == '__main__':

time_start=time.time()

with open('配置.txt', 'r',encoding='utf-8')as f:

setting = f.read()

setting = setting.split('\n')

voidPath=setting[0].split('"')[1]

timeS = int(setting[1].split('"')[1])

testPath = setting[2].split('"')[1]

show=setting[3].split('"')[1]

mobile=setting[4].split('"')[1]

gpu=setting[5].split('"')[1]

print("視頻地址:", voidPath)

print('判斷幀間隔:', timeS)

print('識別結果保存目錄:', testPath)

print('是否可視化:', show)

print('精準識別:', mobile)

print('GPU:', gpu)

if gpu=='是':

gpu=True

else:

gpu=False

c = 0

cap = cv2.VideoCapture(voidPath)

last_text = ''

now_text = ''

text = ''

orc=Ocr(mobile)

#返回所有幀數

fps=int(cap.get(cv2.CAP_PROP_FPS))

#frames_num = cap.get(7)

try:

while (cap.isOpened()):

t1=time.time()

now_text = ''

c = c + 1

ret, frame = cap.read()

if c % timeS == 0: # c除盡timeS時取幀保存，圖片，即隔timeS保存一次圖片

#運算時間

m, s = divmod(c//fps, 60)

h, m = divmod(m, 60)

if show=='是':

now_text, save_path = orc.get_text(frame, True,gpu)

try:

image = cv2.imread(save_path)

x, y = image.shape[0:2]

image=cv2.resize(image, (int(y / 2), int(x / 2)))

cv2.imshow('Video Subtitle Extraction', image)

k = cv2.waitKey(60)

# q鍵退出

if (k & 0xff == ord('q')):

break

except:

pass

else:

now_text, save_path = orc.get_text(frame,False )

if now_text!=last_text:#判斷是否重復

text=now_text +f'[{h}:{m}:{s}]'+ '\n'

last_text=copy.copy(now_text)

print(text,f'用時:{time.time()-t1}')

with open(testPath, 'a+')as f:

f.write(text)

except Exception as err:

print(err)

cap.release()

cv2.destroyAllWindows()

time_stop = time.time()

input(f'全部完成用時:{time_stop-time_start}')

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