在 MacOS 中保存照片时，应用程序会冻结并需要很长时间才能保存

Question

这是我的代码：

    import os
    import cv2
    import uuid
    import time


    camera = cv2.VideoCapture(0)

    POZ_Dosya = os.path.join("veriler", "pozitif")
    NEG_Dosya = os.path.join("veriler", "negatif")
    Temel_Dosya = os.path.join("veriler", "temel")
    os.makedirs(POZ_Dosya, exist_ok=True)
    os.makedirs(NEG_Dosya, exist_ok=True)
    os.makedirs(Temel_Dosya, exist_ok=True)

    target_size = 250

    while camera.isOpened():
        ret, frame = camera.read()

        scale_percent = 33 
        width = int(frame.shape[1] * scale_percent / 100)
        height = int(frame.shape[0] * scale_percent / 100)
        dim = (width, height)
        frame = cv2.resize(frame, dim, interpolation=cv2.INTER_AREA)

        height, width, _ = frame.shape

        start_row = max(0, int((height - target_size) / 2))
        end_row = min(height, start_row + target_size)
        start_col = max(0, int((width - target_size) / 2))
        end_col = min(width, start_col + target_size)

        frame = frame[start_row:end_row, start_col:end_col, :]
        frame = cv2.resize(frame, (target_size, target_size))
        cv2.imshow("a", frame)
        
        if cv2.waitKey(1) & 0xFF == ord("a"):
            time.sleep(10)
            imagename = os.path.join(Temel_Dosya, '{}.jpg'.format(uuid.uuid1()))
            cv2.imwrite(imagename, frame)
        
        if cv2.waitKey(1) & 0xFF == ord("p"):
            pass
        
        if cv2.waitKey(1) & 0xFF == ord("q"):
            break
        
    camera.release()
    cv2.destroyAllWindows()

我该如何解决这个问题。

提前致谢。

我试图为数据集拍摄大量照片，但保存时它会冻结并且需要很长时间才能保存。我已经添加了

 "editor.formatOnSave": false,
 "editor.codeActionsOnSave": {
        "source.organizeImports": "never"

我在 VS code 上的setting.js 仍然继续运行

Answer 1

这不是正确的使用方法

cv2.waitKey()

删除两个

cv2.waitKey()

尝试这样的事情：

key = cv2.waitKey(0)
if key == ord('p'):      
    <Do something>
elif key == ord('q'):    
    break
elif key == 27:          
    flag = False