Initial commit with project files

2_Bildbearbeitung/ü2/l_a.py

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+import numpy as np
+import cv2
+
+''' Einlesen des Bildes '''
+I_in = [
+    [200, 200, 100, 200, 200],
+    [200, 200, 100, 200, 200],
+    [100, 100, 100, 100, 100],
+    [200, 200, 100, 200, 200],
+    [200, 200, 100, 200, 200],
+]
+
+I_in = np.asarray(I_in, dtype="uint8")
+
+print("Bild vor der Bearbeitung:")
+print(I_in)
+print()
+print(I_in.dtype)
+
+''' Operation 1: Kantenfilter '''
+edge = [
+    [-1, -1, -1],
+    [ 0,  0,  0],
+    [ 1,  1,  1]
+]
+edge = np.asarray(edge)
+edge_conv = np.flip(edge)
+I_in = cv2.filter2D(I_in, cv2.CV_64F, edge_conv, borderType=cv2.BORDER_REPLICATE)
+print("Operation 1: Kantenfilter")
+print(I_in)
+print()
+
+''' Operation 2: Absolutwertbildung '''
+I_in = np.abs(I_in)
+print("Operation 2: Absolutwertbildung")
+print(I_in)
+print()
+
+''' Operation 3: Medianfilter'''
+I_in = cv2.medianBlur(I_in.astype("float32"), 3)
+print("Operation 3: Medianfilter")
+print(I_in)
+print()
+
+''' Operation 4: Schwellwert '''
+I_in = np.copy(I_in)
+ret, I_out = cv2.threshold(I_in, 127, 255, cv2.THRESH_BINARY)
+print("Operation 4: Schwellwert")
+print(I_out)
+print()