python-3.x - 检测在 dlib.image_window() 中按下的键

Question

具有以下代码:

import dlib
import cv2
from lib.capture import Capture

win = dlib.image_window()

cap = Capture() # Capture image from webcam
cap.start()

while(True):
    frame = cap.get() # Get current frame from webcam
    if frame is not None:
        frame = cv2.flip(frame, 1)
        frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR) # Converting from RGB to BGR (as dlib.image_window requires)
        win.set_image(frame) # Display the resulting frame

如何检测按下的键，例如dlib 窗口中的“ESC”？？？

Answer 1

你可以使用这个:

from msvcrt import getch
import dlib
import cv2
from lib.capture import Capture

win = dlib.image_window()

cap = Capture() # Capture image from webcam
cap.start()

while(True):
    frame = cap.get() # Get current frame from webcam
    if frame is not None:
        frame = cv2.flip(frame, 1)
        frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR) # Converting from RGB to BGR (as dlib.image_window requires)
        win.set_image(frame) # Display the resulting frame
        key = ord(getch())
        if key == 27: #ESC
            break