From 3365d968595104650e7cc1d385a4615c5bfe43d8 Mon Sep 17 00:00:00 2001
From: Sebastian Schwarz
<Sebastian_Vincent.Schwarz@cs.Reutlingen-University.DE>
Date: Mon, 9 May 2022 18:09:22 +0200
Subject: [PATCH] KernelFactory + BorderBehaviour added
---
...orderlineBehavior.py => BorderBehavior.py} | 7 +++--
Bildfaltung/ClampingBorderBehavior.py | 24 +++++++++++++++
Bildfaltung/KernelFactory.py | 24 +++++++++++++++
Bildfaltung/ZeroPaddingBorderBehavior.py | 20 ++++++++++--
.../BorderBehavior.cpython-310.pyc | Bin 0 -> 532 bytes
.../ClampingBorderBehavior.cpython-310.pyc | Bin 0 -> 830 bytes
.../__pycache__/KernelFactory.cpython-310.pyc | Bin 0 -> 1361 bytes
.../ZeroPaddingBorderBehavior.cpython-310.pyc | Bin 0 -> 593 bytes
Bildfaltung/main.py | 29 ++++++++++++++++--
9 files changed, 96 insertions(+), 8 deletions(-)
rename Bildfaltung/{BorderlineBehavior.py => BorderBehavior.py} (52%)
create mode 100644 Bildfaltung/ClampingBorderBehavior.py
create mode 100644 Bildfaltung/KernelFactory.py
create mode 100644 Bildfaltung/__pycache__/BorderBehavior.cpython-310.pyc
create mode 100644 Bildfaltung/__pycache__/ClampingBorderBehavior.cpython-310.pyc
create mode 100644 Bildfaltung/__pycache__/KernelFactory.cpython-310.pyc
create mode 100644 Bildfaltung/__pycache__/ZeroPaddingBorderBehavior.cpython-310.pyc
diff --git a/Bildfaltung/BorderlineBehavior.py b/Bildfaltung/BorderBehavior.py
similarity index 52%
rename from Bildfaltung/BorderlineBehavior.py
rename to Bildfaltung/BorderBehavior.py
index 4dc7e06..392d065 100644
--- a/Bildfaltung/BorderlineBehavior.py
+++ b/Bildfaltung/BorderBehavior.py
@@ -1,7 +1,8 @@
from abc import ABC, abstractmethod
class BorderBehavior(ABC):
+
@abstractmethod
- def getPixelValue(i, j, image):
- #CONTENT
- return Integer
+ def getPixelValue(self, i, j, image):
+ pass
+
diff --git a/Bildfaltung/ClampingBorderBehavior.py b/Bildfaltung/ClampingBorderBehavior.py
new file mode 100644
index 0000000..bf23ee2
--- /dev/null
+++ b/Bildfaltung/ClampingBorderBehavior.py
@@ -0,0 +1,24 @@
+from BorderBehavior import BorderBehavior
+'''
+ClampingBorderBehavior, welche für (i, j) ausserhalb des Bildes,
+wie in Abbildung 2 unten dargestellt, den Wert des am nächsten
+gelegenen Randpixels zurückgibt (2p)
+'''
+
+
+def clamp(num, min_value, max_value):
+ num = max(min(num, max_value), min_value)
+ return num
+
+class ClampingBorderBehavior(BorderBehavior):
+
+ def getPixelValue(self, i, j, image):
+
+ try:
+ return image[i][j]
+ except IndexError:
+ clamped_i = clamp(i, 0, image.shape[1]-1)
+ clamped_j = clamp(j, 0, image.shape[0]-1)
+ return image[clamped_i][clamped_j]
+
+
diff --git a/Bildfaltung/KernelFactory.py b/Bildfaltung/KernelFactory.py
new file mode 100644
index 0000000..0901e12
--- /dev/null
+++ b/Bildfaltung/KernelFactory.py
@@ -0,0 +1,24 @@
+class KernelFactory:
+
+ @staticmethod
+ def createVerticalPrewittKernel():
+ verticalPrewittKernel = [[-1, -1, -1],
+ [0, 0, 0],
+ [1, 1, 1]]
+ return verticalPrewittKernel
+
+ @staticmethod
+ def createHorizontalPrewittKernel():
+ horizontalPrewittKernel = [[-1, 0, 1],
+ [-1, 0, 1],
+ [-1, 0, 1]]
+ return horizontalPrewittKernel
+
+ @staticmethod
+ def createBoxFilter(size):
+ value = 1/(size*size)
+ boxFilter = [[value for x in range(size)] for y in range(size)]
+
+ return boxFilter
+
+
diff --git a/Bildfaltung/ZeroPaddingBorderBehavior.py b/Bildfaltung/ZeroPaddingBorderBehavior.py
index cadc2f0..48b7aeb 100644
--- a/Bildfaltung/ZeroPaddingBorderBehavior.py
+++ b/Bildfaltung/ZeroPaddingBorderBehavior.py
@@ -1,3 +1,19 @@
-class ZeroPaddingBorderBehavior:
+from BorderBehavior import BorderBehavior
+'''
+ZeroPaddingBorderBehavior, welche für (i, j) ausserhalb des
+Bildes, wie in Abbildung 2 oben dargestellt, den Wert 0 zurückgibt
+(2p).
+'''
+
+class ZeroPaddingBorderBehavior(BorderBehavior):
+
+ def getPixelValue(self, i, j, image):
+ try:
+ return image[i][j]
+ except IndexError:
+ return 0
+
+
+
+
- def get_pixel_value(i, j, img):
diff --git a/Bildfaltung/__pycache__/BorderBehavior.cpython-310.pyc b/Bildfaltung/__pycache__/BorderBehavior.cpython-310.pyc
new file mode 100644
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diff --git a/Bildfaltung/main.py b/Bildfaltung/main.py
index d40e22e..61e12d0 100644
--- a/Bildfaltung/main.py
+++ b/Bildfaltung/main.py
@@ -1,17 +1,40 @@
+from ClampingBorderBehavior import ClampingBorderBehavior
from Image import Image
import numpy as np
+from KernelFactory import KernelFactory
+from ZeroPaddingBorderBehavior import ZeroPaddingBorderBehavior
path = "E:/Downloads/test.pgm"
path1 = "E:/Downloads/test1.pgm"
array = np.random.randint(256, size=(4, 4))
+def clamp(num, min_value, max_value):
+ num = max(min(num, max_value), min_value)
+ return num
+
if __name__ == '__main__':
print(array)
- img = Image()
- img.writeToFile(array, path1)
- print(img.readFromFile(path1))
+ #img = Image()
+ #img.writeToFile(array, path1)
+ #print(img.readFromFile(path1))
+ test = ClampingBorderBehavior()
+ print(test.getPixelValue(1, 4, array))
+
+
+
+
+
+
+ #print(KernelFactory.createBoxFilter(5))
+
+
+
+
+
+
+
--
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