Draws line between specified points
image_ret=cv_line(image,start,end,colour,linetype,thickness)
Input Image on which Line Is to be drawn
Start point example -> [20,30]
Ending point example -> [40,50]
colour of line example -> [0,255,0]
Linetype values : 8 For 8 connected line , 4 For 4 connected line And anything Else For antialiased line
Thickness of line
Output image
Provides Line drawing facility on image
Draws line on image between specified cordinates (start And end)