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Author: vallalapoojarani

python programming/calculator_project.py

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+#calculation project
+
+num1=int(input("enter num1 number:"))
+num2=int(input("enter num1 number:"))
+operator=input()
+if operator == "+":
+    print(f"adddition of{num1+num2}")
+elif operator == "-":
+    print(f"subtraction of{num1-num2}")
+elif operator == "/":
+    print(f"division of{num1/num2}")
+elif operator == "*":
+    print(f"multipication of{num1*num2}")
+else:
+    print("invalid numbers")

python programming/decision.py

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+w=input()
+if w==sunny:
+    print("hello world")
+    else:
+        print("hi")

python programming/first_program.py

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+a=100
+a=float(a)
+print(type(a))
+print(a)

python programming/gradeproblem.py

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+m=int(input("maths marks:"))
+s=int(input("science marks:"))
+p=int(input("physics marks:"))
+total=m+s+p
+average=total/3
+percentage=(total/300)*100
+grade=""
+if percentage > 90:
+    grade="A"
+elif percentage > 80:
+    grade="B"
+elif percentage > 70:
+    grade="C"
+elif percentage > 60:
+    grade="D"
+else:
+    grade="p"
+print(total)
+print(average)
+print(grade)

python programming/largestnumber.py

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+a=input()
+x,y,z=a.split(",")
+num1=int(x)
+num2=int(y)
+num3=int(z)
+if num1>num2:
+    if num1>num3:
+        great=num1
+    else:
+        great=num3
+elif num2>num1:
+    if num2>num3:
+        great=num2
+    else:
+        great=num3
+elif num3>num1:
+    if num3>num2:
+        great=num3
+    else:
+        great=num2
+print(great)

python programming/leapproblem.py

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+year=int(input())
+leap=False
+if year%100==0 and year%400!=0:
+    leap=False
+elif year%4==0:
+    leap=True
+else:
+    leap=True
+print(leap)

python programming/opencv.py/image_reading_save.py

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+import cv2
+#img1=cv2.imread(r"c:\Users\POOJA\Downloads\ganesha.jpg",1)
+#img1=cv2.resize(img1,(1000,800))
+#cv2.imshow("colored image",img1)
+#print("give image with color==\n",img1)
+#cv2.waitKey(0)
+#cv2.destroyAllWindows()
+
+##cv2.imread_grayscale or use 0 for black and white
+#img1=cv2.imread(r"c:\Users\POOJA\Downloads\ganesha.jpg",0)
+#img1=cv2.resize(img1,(1000,800))
+#cv2.imshow("gray scale",img1)
+#print("give image with grayscale==\n",img1)
+#cv2.waitKey(0)
+
+##cv2.imread_unchanged loads image as such inluding alpha
+#img1=cv2.imread(r"c:\Users\POOJA\Downloads\ganesha.jpg",-1)
+#img1=cv2.resize(img1,(1000,800))
+#cv2.imshow("original image",img1)
+#print("image in original==\n",img1)
+#cv2.waitKey(0)
+  
+#image coverting image into gray
+img1=cv2.imread(r"c:\Users\POOJA\Downloads\ganesha.jpg",0)
+img1=cv2.resize(img1,(560,800))
+img1=cv2.flip(img1,-1)#rotating the with it have 3 parameters like 1,-1,0
+cv2.imshow("gray scale",img1)
+word =cv2.waitKey(0)& 0xFF
+if word == ord("q"):
+    cv2.destroyAllWindows()
+elif word == ord("s"):
+    cv2.imwrite("output.png",img1)# if it accepts this it will save the image in the file path
+    cv2.destroyAllWindows()

python programming/opencv.py/project.py

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+import cv2
+from pyzbar.pyzbar import decode
+import webbrowser
+
+# Open webcam
+cap = cv2.VideoCapture(0)
+
+opened_links = set()
+
+while True:
+    success, frame = cap.read()
+
+    # Detect QR codes
+    for qr in decode(frame):
+        data = qr.data.decode('utf-8')
+        points = qr.polygon
+
+        # Draw rectangle
+        x, y, w, h = qr.rect
+        cv2.rectangle(frame, (x, y), (x + w, y + h), (0, 255, 0), 3)
+
+        # Show text
+        cv2.putText(frame, data, (x, y - 10),
+                    cv2.FONT_HERSHEY_SIMPLEX,
+                    0.5, (255, 0, 0), 2)
+
+        print("QR Code:", data)
+
+        # Open link only once
+        if data.startswith("http") and data not in opened_links:
+            webbrowser.open(data)
+            opened_links.add(data)
+
+    # Show camera
+    cv2.imshow("QR Scanner", frame)
+
+    # Press Q to quit
+    if cv2.waitKey(1) & 0xFF == ord('q'):
+        break
+
+cap.release()
+cv2.destroyAllWindows()

python programming/opencv.py/project_orcode.py

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+import cv2
+import webbrowser
+
+# Initialize Webcam
+cap = cv2.VideoCapture(0)
+cap.set(3, 1280) ## width
+cap.set(4, 720)  ## height 
+
+# Built-in OpenCV QR Detector
+detector = cv2.QRCodeDetector()
+
+print("QR Scanner is running... Press 'q' to quit.")
+
+last_data = None
+
+while True:
+    success, img = cap.read()
+    if not success:
+        break
+
+    # Detect and Decode
+    data, bbox, _ = detector.detectAndDecode(img)
+
+    # If a QR code is found
+    if bbox is not None:
+        # FIXED: Reshaping the bbox to a simple 4x2 array
+        bbox = bbox.reshape(-1, 2)
+        
+        for i in range(len(bbox)):
+            # Draw green bounding box using integer coordinates
+            pt1 = tuple(bbox[i].astype(int))
+            pt2 = tuple(bbox[(i+1) % len(bbox)].astype(int))
+            cv2.line(img, pt1, pt2, (0, 255, 0), 3)
+
+        if data:
+            # Place text near the top corner of the box
+            cv2.putText(img, "QR Detected!", (int(bbox[0][0]), int(bbox[0][1]) - 10), 
+                        cv2.FONT_HERSHEY_SIMPLEX, 0.8, (0, 255, 0), 2)
+            
+            if data != last_data:
+                print(f"Decoded Data: {data}")
+                if data.startswith("http"):
+                    webbrowser.open(data)
+                last_data = data
+
+    cv2.imshow("OpenCV QR Scanner", img)
+
+    if cv2.waitKey(1) & 0xFF == ord('q'):
+        break
+
+cap.release()
+cv2.destroyAllWindows()

python programming/opencv.py/shapes_text.py

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+import numpy as np
+import cv2
+img=cv2.imread(r"c:\Users\POOJA\Downloads\ganesha.jpg")
+img=cv2.resize(img,(600,700))
+
+## if we want black background we use zeros or for white we use ones
+img=np.zeros([512,512,3],np.uint8)*255
+img=np.ones([512,512,3],np.uint8)*255
+
+## shapes(starting,ending,color,thicknes)
+img=cv2.line(img,(0,0),(200,200),(154,92,428),8)
+img=cv2.arrowedLine(img,(0,125),(255,255),(255,0,125),10)
+img=cv2.rectangle(img,(384,10),(510,128),(128,0,255),8)
+img=cv2.cricle(img,(447,125),63,(213,255,0)-5)
+img=cv2.ellipse(img,(400,600),(100,50),0,180,155,5)
+pts=np.array([[100,150],[200,300],[170,20],[50,10]],np.int32)
+pts=pts.reshape((-1,1,2))
+img=cv2.polylines(img,[pts],True,(0,255,155))
+
+##font text
+font=cv2.FONT_ITALIC
+img=cv2.putText(img,'THOR',(20,500),font,4,(0,125,255))
+
+cv2.imshow("image",img)
+cv2.waitKey(0)
+cv2.destroyAllWindows()