Initial commit with project files

2_Bildbearbeitung/ü6/l_a.py

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+import cv2
+import numpy as np
+
+img = cv2.imread("../../data/car.png")
+cv2.imshow("Car", img)
+
+print("Image Shape:", img.shape)
+
+
+print("\nForward-Mapping")
+new_image = np.zeros((int(img.shape[0] / 2), int(img.shape[1] / 2), img.shape[2]), dtype=np.uint8)
+
+for x in range(img.shape[1]):
+    for y in range(img.shape[0]):
+        new_image[int(y/2), int(x/2)] = img[y, x]
+
+cv2.imshow("Forward-Mapping", new_image)
+print("Pixel at position x=12, y=38", new_image[38, 12])
+
+
+print("\nBackward-Mapping")
+# Inverse Transformation:
+# (x, y)^T  =  ([2, 0]  * (x', y')^T
+#               [0, 2])
+
+p_12_38 = img[38*2, 12*2]
+print("Pixel at position x=12, y=38", p_12_38)
+
+cv2.waitKey(0)