Initial commit with project files

2_Bildbearbeitung/ü4/l_c.py

@@ -0,0 +1,37 @@
+import cv2
+import numpy as np
+
+img = cv2.imread("../../data/cameraman.png")
+img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
+
+k1 = (1 / 25) * np.asarray([
+    [1, 1, 1, 1, 1],
+    [1, 1, 1, 1, 1],
+    [1, 1, 1, 1, 1],
+    [1, 1, 1, 1, 1],
+    [1, 1, 1, 1, 1]
+], dtype=np.uint8)
+
+k2 = np.asarray([
+    [1, 0, -1],
+    [1, 0, -1],
+    [1, 0, -1],
+], dtype=np.float32)
+
+k3 = np.asarray([
+    [-1, -1, -1],
+    [-1,  9, -1],
+    [-1, -1, -1],
+], dtype=np.float32)
+
+img_k1 = cv2.filter2D(img, -1, k1)
+img_k2 = cv2.filter2D(img.astype(np.float32), -1, k2)
+img_k2 = np.maximum(img_k2, 0).astype(np.uint8)
+img_k3 = cv2.filter2D(img.astype(np.float32), -1, k3)
+img_k3 = np.maximum(img_k3, 0).astype(np.uint8)
+
+cv2.imshow("img", img)
+cv2.imshow("img_k1", img_k1)
+cv2.imshow("img_k2", img_k2)
+cv2.imshow("img_k3", img_k3)
+cv2. waitKey()