测试当前硬件下dxcam能达到的最高刷新率

test_highest_FPS.py

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+import dxcam
+import time
+import cv2
+import pyautogui
+import numpy as np
+
+camera = dxcam.create(output_color="BGR")
+
+WIDTH, HEIGHT = pyautogui.size()
+CENTER = [WIDTH/2, HEIGHT/2]
+SIZE = 640
+LEFT = int(CENTER[0] - SIZE / 2)
+TOP = int(CENTER[1] - SIZE / 2)
+REGION = (LEFT, TOP, LEFT+SIZE, TOP+SIZE)
+
+if __name__ == '__main__':
+    img_count = 0
+    that_time = time.time()
+    Flag = True
+    region = REGION
+    while(Flag):
+        img = np.array(camera.grab(region=region))
+        if img.any() == None:
+            continue
+        img_count += 1
+        this_time = time.time()
+        duration_time = this_time - that_time
+        if duration_time >= 10:
+            that_time = this_time
+            img_count = 0
+        cv2.imshow('', img)
+        cv2.setWindowTitle('', str(img_count/duration_time))
+        print(img_count)
+        # print("FPS is {:.2f}".format(img_count/duration_time))
+
+        key = cv2.waitKey(1)
+        if key == ord('q'):
+            Flag=False
+            cv2.destroyAllWindows()
+            break