Initial commit with project files

4_Farbrepräsentationen/ü2/l_b.py

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+import numpy as np
+import cv2
+
+camera = cv2.VideoCapture(0)
+
+signum = 1
+factor = 0.3
+while True:
+    ret, bgr = camera.read()
+
+    ''' Aufgabe a) '''
+    hsv = cv2.cvtColor(bgr, cv2.COLOR_BGR2HSV)
+    hsv[:, :, 2] = np.round(hsv[:, :, 2] * factor)
+    bgr = cv2.cvtColor(hsv, cv2.COLOR_HSV2BGR)
+
+    ''' Aufgabe b) '''
+    if factor == 0:
+        signum = 1
+    elif factor == 1:
+        signum = -1
+    factor += signum * 0.02
+    factor = min(1, factor)
+    factor = max(0, factor)
+
+    ''' Visualisierung  '''
+    # Display the resulting frame
+    cv2.imshow('frame', bgr)
+    if 27 == cv2.waitKey(1):  # Taste "q"
+        break
+
+# When everything done, release the capture
+camera.release()
+cv2.destroyAllWindows()