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image processing

camera_take.py

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+#!/usr/bin/python
+
+import  cv2
+
+#  to start web or external web camera 
+capture=cv2.VideoCapture(0)
+
+
+if  capture.isOpened()  :
+	print  "camera is ready to take picture"
+#       current camera data ,  after frame take camera status 
+	frame,status=capture.read()
+	cv2.imshow("framm1",frame)
+	cv2.waitKey(0)
+	capture.release()
+else :
+	print  "check your camera drivers with OS"
+
+

image_action.py

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+#!/usr/bin/python
+
+import  cv2
+#  all functions of  cv2  that is opencv model  
+#print  dir(cv2)
+
+#  reading image
+#        image name , imaeg features  
+#          we can write    cv2.IMREAD_COLOR instead of 1 
+#          we can write    cv2.IMREAD_BGR2GRAY instead of 0
+#          we can write    cv2.IMREAD_UNCHANGE_COLOR instead of -1
+
+img=cv2.imread("dog1.jpeg")
+#  to draw a line im  dog image
+#        imagedata , start point , end point , color , line width
+cv2.line(img,(0,0),(100,100),(100,120,255),3)
+#              
+cv2.rectangle(img,(20,20),(100,100),(255,255,255),-1)
+cv2.circle(img,(100,100),30,(12,45,200),-1)
+#  deciding font type  
+#font=cv2.FONT_HERSHEY_SIMPLEX
+#  putting text in image 
+#           data, text , starting point , fontype , size , color
+#cv2.putText(img,"DOGGG",(10,10),font,3,(100,23,200),lineType=cv2.LINE_AA)   
+cv2.imshow("lineimg",img)
+cv2.imwrite("dogline.jpeg",img)
+cv2.waitKey(0)
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image_process.py

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+#!/usr/bin/python
+
+import  cv2
+#  all functions of  cv2  that is opencv model  
+#print  dir(cv2)
+
+#  reading image
+#        image name , imaeg features  
+#          we can write    cv2.IMREAD_COLOR instead of 1 
+#          we can write    cv2.IMREAD_BGR2GRAY instead of 0
+#          we can write    cv2.IMREAD_UNCHANGE_COLOR instead of -1
+
+img=cv2.imread("dog1.jpeg",1)
+img1=cv2.imread("dog1.jpeg",0)
+img2=cv2.imread("dog1.jpeg",-1)
+#  checking rows and cols 
+print  img.shape
+print img1.shape
+#   to show original data of image  
+print  img
+#  to show images 
+cv2.imshow("windowname",img)
+cv2.imshow("bwimg",img1)
+cv2.imshow("newok",img2)
+
+#  save black and white  (GRAY)  image
+cv2.imwrite("bac.jpeg",img1)
+
+#  to hold  upper window  
+cv2.waitKey(0)

image_read.py

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+#!/usr/bin/python2
+
+import  cv2
+
+#  laoding  image 
+img=cv2.imread('dog1.jpeg')
+img1=cv2.imread('dog1.jpeg',0)
+
+#  Print  height and width
+print  img.shape
+
+#  to display that image 
+cv2.imshow("dog",img)
+cv2.imshow("dognew",img1)
+
+#  image window holder activate 
+cv2.waitKey(0)
+#  waitkey will destroy  by using  q  button
+cv2.destroyAllWindows()
+
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