diff --git a/.gitignore b/.gitignore index 9ca7e38..8d0cd75 100644 --- a/.gitignore +++ b/.gitignore @@ -4,4 +4,7 @@ *.mp4 *.avi .ipynb_checkpoints -tutorial02.ipynb \ No newline at end of file +tutorial02.ipynb + + +help_test.py \ No newline at end of file diff --git a/README.md b/README.md index 7d16752..90d5531 100644 --- a/README.md +++ b/README.md @@ -171,3 +171,40 @@ python opencv_webcam.py -ishsf -isrf -rrf 0.5 python opencv_webcam.py -fsd custom_dir -isasf # 以自动版为例 ``` + + +#### 指令查询 + +```shell +python opencv_webcam_v02.py --help +``` + +```shell +usage: opencv_webcam_v02.py [-h] [--device DEVICE] [--quit QUIT] [--is_autoSaveFrame] [--is_headSaveFrame] [--is_resizeFrame] [--frame_saveDir FRAME_SAVEDIR] [--frame_nSave FRAME_NSAVE] + [--frame_capKey FRAME_CAPKEY] [--resize_frame RESIZE_FRAME [RESIZE_FRAME ...]] [--resizeRatio_frame RESIZERATIO_FRAME] + +OpenCV Webcam Script + +optional arguments: + -h, --help show this help message and exit + --device DEVICE, -dev DEVICE + device index for webcam + --quit QUIT, -q QUIT quit key for webcam + --is_autoSaveFrame, -isasf + is auto save frame + --is_headSaveFrame, -ishsf + is head save frame + --is_resizeFrame, -isrf + is resize frame + --frame_saveDir FRAME_SAVEDIR, -fsd FRAME_SAVEDIR + save frame dir + --frame_nSave FRAME_NSAVE, -fns FRAME_NSAVE + n frames save a frame (auto save frame) + --frame_capKey FRAME_CAPKEY, -fck FRAME_CAPKEY + frame capture key (head save frame) + --resize_frame RESIZE_FRAME [RESIZE_FRAME ...], -rf RESIZE_FRAME [RESIZE_FRAME ...] + resize frame save + --resizeRatio_frame RESIZERATIO_FRAME, -rrf RESIZERATIO_FRAME + resize ratio frame save +``` + diff --git a/opencv_webcam_v02.py b/opencv_webcam_v02.py index d1beae9..840668c 100644 --- a/opencv_webcam_v02.py +++ b/opencv_webcam_v02.py @@ -11,23 +11,35 @@ import glob import re import os -def parse_args(argv=None): - parser = argparse.ArgumentParser(description = 'OpenCV Webcam Script') - parser.add_argument('--device','-dev', default = 0, type = int, help = 'device index for webcam') - parser.add_argument('--quit','-q', default = "q", type = str, help = 'quit key for webcam') - parser.add_argument('--is_autoSaveFrame', '-isasf', action='store_true', help = 'is auto save frame') - parser.add_argument('--is_headSaveFrame', '-ishsf', action='store_true', help = 'is head save frame') - parser.add_argument('--is_resizeFrame', '-isrf', action='store_true', help = 'is resize frame') - parser.add_argument('--frame_saveDir', '-fsd', default = "./WebcamFrame", type = str, help = 'save frame dir') - parser.add_argument('--frame_nSave', '-fns', default = 1, type = int, help = 'n frames save a frame (auto save frame)') - parser.add_argument('--frame_capKey', '-fck', default = "a", type = str, help = 'frame capture key (head save frame)') - parser.add_argument('--resize_frame', '-rf', default = [640, 480], type = int, nargs = '+', help = 'resize frame save') - parser.add_argument('--resizeRatio_frame', '-rrf', default = 1.0, type = float, help = 'resize ratio frame save') - global args - args = parser.parse_args(argv) +def parse_args(known=False): + parser = argparse.ArgumentParser(description='OpenCV Webcam Script') + parser.add_argument('--device', '-dev', default=0, + type=int, help='device index for webcam') + parser.add_argument('--quit', '-q', default="q", + type=str, help='quit key for webcam') + parser.add_argument('--is_autoSaveFrame', '-isasf', + action='store_true', help='is auto save frame') + parser.add_argument('--is_headSaveFrame', '-ishsf', + action='store_true', help='is head save frame') + parser.add_argument('--is_resizeFrame', '-isrf', + action='store_true', help='is resize frame') + parser.add_argument('--frame_saveDir', '-fsd', + default="./WebcamFrame", type=str, help='save frame dir') + parser.add_argument('--frame_nSave', '-fns', default=1, + type=int, help='n frames save a frame (auto save frame)') + parser.add_argument('--frame_capKey', '-fck', default="a", + type=str, help='frame capture key (head save frame)') + parser.add_argument('--resize_frame', '-rf', + default=[640, 480], type=int, nargs='+', help='resize frame save') + parser.add_argument('--resizeRatio_frame', '-rrf', + default=1.0, type=float, help='resize ratio frame save') -# 保存路径管理 + args = parser.parse_known_args()[0] if known else parser.parse_args() + return args + + +# 保存路径管理 def increment_path(path, exist_ok=False, sep='', mkdir=False): # 引用：https://github.com/ultralytics/yolov5/blob/master/utils/general.py path = Path(path) # os-agnostic @@ -47,47 +59,58 @@ def increment_path(path, exist_ok=False, sep='', mkdir=False): # webcam opencv def webcam_opencv(device_index, quit_key, is_autoSaveFrame, frame_saveDir, frame_nSave, is_headSaveFrame, frame_capKey, is_resizeFrame, resize_frame, resizeRatio_frame): - cap = cv2.VideoCapture(device_index) # 连接设备 - frame_width = cap.get(3) # 宽度 - frame_height = cap.get(4) # 高度 - fps = cap.get(5) # 帧率 + s_time = time.time() # 起始时间 + + cap = cv2.VideoCapture(device_index) # 连接设备 + frame_width = cap.get(3) # 宽度 + frame_height = cap.get(4) # 高度 + fps = cap.get(5) # 帧率 print(f'宽度：{frame_width}, 高度：{frame_height}， FPS：{fps}') - success, _ = cap.read() # 读取设备 + success, _ = cap.read() # 读取设备 if success: print(f'摄像头连接成功！') if is_autoSaveFrame or is_headSaveFrame: # 帧保存路径管理 - frame_samePath = increment_path(Path(f"{frame_saveDir}") / "frames", exist_ok=False) # 增量运行 + frame_samePath = increment_path( + Path(f"{frame_saveDir}") / "frames", exist_ok=False) # 增量运行 frame_samePath.mkdir(parents=True, exist_ok=True) # 创建目录 - - frame_num = 0 # 帧数 + + frame_num = 0 # 帧数 while(1): - ret, frame = cap.read() # 捕获画面 + ret, frame = cap.read() # 捕获画面 frame_num += 1 print(f'第{frame_num}帧') - cv2.imshow("capture", frame) # 显示画面 + cv2.imshow("capture", frame) # 显示画面 # print(frame.shape) # h,w,c - if (is_autoSaveFrame): # 自动保存 - if (frame_num % frame_nSave == 0): # 每隔n帧保存一次 - if (is_resizeFrame): # resize frame - w_resize = int(resize_frame[0] * resizeRatio_frame) # 重塑宽度 - h_resize = int(resize_frame[1] * resizeRatio_frame) # 重塑高度 - frame_new = cv2.resize(frame, (w_resize, h_resize), interpolation = cv2.INTER_AREA) # 重塑 - cv2.imwrite(f'./{frame_samePath}/{frame_num}.jpg', frame_new) + if (is_autoSaveFrame): # 自动保存 + if (frame_num % frame_nSave == 0): # 每隔n帧保存一次 + if (is_resizeFrame): # resize frame + w_resize = int( + resize_frame[0] * resizeRatio_frame) # 重塑宽度 + h_resize = int( + resize_frame[1] * resizeRatio_frame) # 重塑高度 + frame_new = cv2.resize( + frame, (w_resize, h_resize), interpolation=cv2.INTER_AREA) # 重塑 + cv2.imwrite( + f'./{frame_samePath}/{frame_num}.jpg', frame_new) else: - cv2.imwrite(f'./{frame_samePath}/{frame_num}.jpg', frame) - if (is_headSaveFrame): # 手动保存 - if cv2.waitKey(20) & 0xFF == ord(frame_capKey): # 保存键 - if (is_resizeFrame): # 重塑 + cv2.imwrite( + f'./{frame_samePath}/{frame_num}.jpg', frame) + if (is_headSaveFrame): # 手动保存 + if cv2.waitKey(20) & 0xFF == ord(frame_capKey): # 保存键 + if (is_resizeFrame): # 重塑 w_resize = int(resize_frame[0] * resizeRatio_frame) h_resize = int(resize_frame[1] * resizeRatio_frame) - frame_new = cv2.resize(frame, (w_resize, h_resize), interpolation = cv2.INTER_AREA) - cv2.imwrite(f'./{frame_samePath}/{frame_num}.jpg', frame_new) + frame_new = cv2.resize( + frame, (w_resize, h_resize), interpolation=cv2.INTER_AREA) + cv2.imwrite( + f'./{frame_samePath}/{frame_num}.jpg', frame_new) else: - cv2.imwrite(f'./{frame_samePath}/{frame_num}.jpg', frame) - if cv2.waitKey(20) & 0xFF == ord(quit_key): # 退出 ord：字符转ASCII码 + cv2.imwrite( + f'./{frame_samePath}/{frame_num}.jpg', frame) + if cv2.waitKey(20) & 0xFF == ord(quit_key): # 退出 ord：字符转ASCII码 break print(f'一共处理了{frame_num}帧') # 释放缓存 @@ -96,11 +119,12 @@ def webcam_opencv(device_index, quit_key, is_autoSaveFrame, frame_saveDir, frame else: print(f'摄像头连接异常！') + print(f'程序结束！') + e_time = time.time() # 终止时间 + print(f'用时：{round((e_time - s_time), 3)}秒, {round((e_time - s_time)/60, 3)}分, {round((e_time - s_time)/3600, 3)}小时') -if __name__ == '__main__': - # 参数 - parse_args() +def main(args): device_index = args.device quit_key = args.quit is_autoSaveFrame = args.is_autoSaveFrame @@ -117,6 +141,10 @@ if __name__ == '__main__': print(f'快捷键冲突!') else: # 调用webcam opencv - webcam_opencv(device_index, quit_key, is_autoSaveFrame, frame_saveDir, frame_nSave, is_headSaveFrame, frame_capKey, is_resizeFrame, resize_frame, resizeRatio_frame) + webcam_opencv(device_index, quit_key, is_autoSaveFrame, frame_saveDir, frame_nSave, + is_headSaveFrame, frame_capKey, is_resizeFrame, resize_frame, resizeRatio_frame) - print(f'程序结束！') \ No newline at end of file + +if __name__ == '__main__': + args = parse_args() + main(args) diff --git a/v02.md b/v02.md index c21401a..52d0446 100644 --- a/v02.md +++ b/v02.md @@ -6,4 +6,10 @@ ### 更新走势 -- `2022-01-02` 创建[Jupyter版](./tutorial.ipynb) \ No newline at end of file +- `2022-01-02` 创建[Jupyter版](./tutorial.ipynb) + + + +### 功能更新 +- 增加压缩质量 +- 视频帧重用名 \ No newline at end of file