Initial commit with project files

2_Bildbearbeitung/ü5/l_b.py

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+import cv2
+import numpy as np
+
+img = cv2.imread("../../data/lena.png")
+img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
+
+''' Rauschen hinzufügen '''
+h, w = img.shape
+saltpepper_noise = np.zeros((h, w), dtype=np.uint8)
+saltpepper_noise = cv2.randu(saltpepper_noise, 0, 255)
+black = saltpepper_noise < 15
+white = saltpepper_noise > 240
+img[white] = 255
+img[black] = 0
+
+cv2.imshow("img", img)
+
+''' Median Filter anwenden '''
+sizes = [3, 5, 9]
+for kernel_size in sizes:
+    img_filtered = cv2.medianBlur(img, kernel_size)
+    cv2.imshow("img_filtered_" + str(kernel_size), img_filtered)
+
+cv2. waitKey()