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Tobias Zoghaib
2025-07-03 17:55:33 +02:00
parent cc5199146a
commit 5c7067e255
14 changed files with 849 additions and 825 deletions
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Abgabe/DigBV_Aufgabe.tex
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\vspace{2cm} \vspace{2cm}
\begin{tabular}{@{}p{4cm}l} \begin{tabular}{@{}p{4cm}l}
Datum: & XX.XX.XXXX \\ Datum: & 27.06.2025 \\
Uhrzeit: & XX:XX \\ Uhrzeit: & 08:00 \\
Anzahl der Bl\"{a}tter: & \lastpageref*{LastPages} (einschlie\ss{}lich Deckblatt) Anzahl der Bl\"{a}tter: & \lastpageref*{LastPages} (einschlie\ss{}lich Deckblatt)
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\begin{tabular}{@{}p{4cm} l } \begin{tabular}{@{}p{4cm} l }
{\normalfont\bfseries Name:} & {\normalfont\bfseries Matrikelnummer:}\\ {\normalfont\bfseries Name:} & {\normalfont\bfseries Matrikelnummer:}\\
$\underline{\hspace{5cm}}$ \hspace{0.5cm}& $\underline{\hspace{5cm}}$ \\ Koussai Hamraoui\hspace{0.5cm}&10049868\\
$\underline{\hspace{5cm}}$ \hspace{0.5cm}& $\underline{\hspace{5cm}}$\\ Alexander Gossmann \hspace{0.5cm}&3217770 \\
$\underline{\hspace{5cm}}$ \hspace{0.5cm}& $\underline{\hspace{5cm}}$\\ Tobias Zoghaib \hspace{0.5cm}&10019865\\
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Die Bearbeitung der Aufgaben erfolgt selbstst<73>ndig in Kleingruppen. Alle Gruppenmitglieder sollen Arbeitsaufwand in gleicher Gr<47><72>enordnung einbringen. Betrugsversuche werden geahndet. Die Bearbeitung der Aufgaben erfolgt selbstst<73>ndig in Kleingruppen. Alle Gruppenmitglieder sollen Arbeitsaufwand in gleicher Gr<47><72>enordnung einbringen. Betrugsversuche werden geahndet.
\pagebreak
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4
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@@ -1,6 +1,6 @@
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70
CV-App/algorithms/invis_cloak.py
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@@ -19,6 +19,9 @@ class InvisCloak (Algorithm):
# Includes noice reduction and histogram spread # Includes noice reduction and histogram spread
self.middle_value_picture = None self.middle_value_picture = None
# Buffer for background image
self.background = None
# Clean up results folder # Clean up results folder
folder_path = os.path.join("results") folder_path = os.path.join("results")
@@ -78,6 +81,7 @@ class InvisCloak (Algorithm):
elif event == cv2.EVENT_MBUTTONUP: elif event == cv2.EVENT_MBUTTONUP:
# Save current image as background # Save current image as background
cv2.imwrite(f"results/background.png", self.picture_buffer[self.n - 1]) cv2.imwrite(f"results/background.png", self.picture_buffer[self.n - 1])
self.background = cv2.imread("results/background.png")
def _plotNoise(self, img, name:str): def _plotNoise(self, img, name:str):
@@ -172,29 +176,23 @@ class InvisCloak (Algorithm):
Hier steht Ihr Code zu Aufgabe 2.3.1 (StatischesSchwellwertverfahren) Hier steht Ihr Code zu Aufgabe 2.3.1 (StatischesSchwellwertverfahren)
- Binärmaske erstellen - Binärmaske erstellen
""" """
# 0 = blue, 1 = green, 2 = red # Convert BGR -> HSV
selected_color_channel = 2 hsv = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
# Color threshold values for color deletion # Area 1: H = 0-10 (strong Rot)
lower_bound, upper_bound = 100, 255 lower_red1 = np.array([0, 100, 50])
upper_red1 = np.array([0, 255, 255])
# Creating binary mask # Area 2: H = 169-179 (red-violet)
binary_mask = (lower_bound < img[:, :, selected_color_channel]) * (img[:, :, selected_color_channel] < upper_bound) lower_red2 = np.array([171, 100, 50])
upper_red2 = np.array([179, 255, 255])
# Store binary mask to results folder # Create binary mask for both red areas
if save_binary_mask: mask1 = cv2.inRange(hsv, lower_red1, upper_red1)
cv2.imwrite(f"results/{datetime.datetime.now().strftime('%Y-%m-%d_%H:%M:%S')}_binary_mask.png", mask2 = cv2.inRange(hsv, lower_red2, upper_red2)
binary_mask * 256)
try:
# Get background image
background = cv2.imread("results/background.png")
# Apply mask to image
img[binary_mask] = background[binary_mask]
except:
print("No background image")
# Combine both masks
mask = cv2.bitwise_or(mask1, mask2)
""" """
Hier steht Ihr Code zu Aufgabe 2.3.2 (Binärmaske) Hier steht Ihr Code zu Aufgabe 2.3.2 (Binärmaske)
@@ -202,12 +200,42 @@ class InvisCloak (Algorithm):
- Wahl größte zusammenhängende Region - Wahl größte zusammenhängende Region
""" """
# Optimizing mask with opening and closing
kernel = np.ones((5, 5), np.uint8)
mask = cv2.morphologyEx(mask, cv2.MORPH_OPEN, kernel)
mask = cv2.morphologyEx(mask, cv2.MORPH_CLOSE, kernel)
# Select biggest connected area
cnts, _ = cv2.findContours(mask, cv2.RETR_LIST, cv2.CHAIN_APPROX_SIMPLE)
if cnts:
c = max(cnts, key=cv2.contourArea)
new_mask = np.zeros_like(mask)
cv2.drawContours(new_mask, [c], -1, color = 255, thickness = -1)
mask = new_mask
else:
mask = np.zeros_like(mask)
""" """
Hier steht Ihr Code zu Aufgabe 2.3.1 (Bildmodifizerung) Hier steht Ihr Code zu Aufgabe 2.3.3 (Bildmodifizerung)
- Hintergrund mit Mausklick definieren - Hintergrund mit Mausklick definieren
- Ersetzen des Hintergrundes - Ersetzen des Hintergrundes
""" """
# Return image if no background is set
if self.background is None:
return img return img
# 3-channel mask for binary operations
mask_3ch = cv2.cvtColor(mask, cv2.COLOR_GRAY2BGR)
# Background are: Get from save background image
background_part = cv2.bitwise_and(self.background, mask_3ch)
# Foreground area: Extract from current image
foreground_part = cv2.bitwise_and(img, cv2.bitwise_not(mask_3ch))
# Merge both areas
output = cv2.add(background_part, foreground_part)
return output