You both were right... i type casted it to int and it works with this..Thanks for catching the error !!!. but i had a question.. i want to find area of all the cells which i obtained by using imagechops.difference.... so should i multiply each cell with cellsize or should i add all the cells and multiply it will the cellsize...
accd to me if i have a square of 2X2 then area is 4. if i need to find area of 10such squares then i can just find area for one and multiply it with 10. I donno which approach i should follow..... should i multiply each pixel with cellsize or first i add up all of them and multiply the cumulative result with cellsize............ On Sun, Mar 9, 2008 at 6:41 PM, Kent Johnson <[EMAIL PROTECTED]> wrote: > Varsha Purohit wrote: > > Hello All, > > I had posted this question in this community. I have a trouble. > > Actually in my application i need to multiply the resultant value i am > > getting with a cellsize. I am getting this cellsize by reading an ascii > > file's header. But when i am trying to multiply it with the result of > > imagestat i am getting an error. > > > temp= hdr[4].strip().split() # temp is a list which is ['cellsize', > > '127'] > > cellsize = temp[1] > > Here cellsize is a string, not an integer. Try > cellsize = int(temp[1]) > > > i am getting an error that i cannot combine imagestat with cellsize and > > i cannot multiply it like that. > > It's very helpful if you show us the exact error, including the > traceback. Just copy the entire error message and paste it into your > email. > > Kent > -- Varsha Purohit, Graduate Student
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