Converting an image into numeric array?

I want to sum all the pixel values in a image. I was thinking of using the Add Array Elements VI. Is their an easy way to convert an U8 or an I16 bit image into a numeric array? Thank you in advance.

Is this a BW image? (If the image is paletted or color, a summing operation is poorly defined! )
Just convert your image data to a 2D boolean array using unflatten pixmap, then feed the 1bit pixmap to "boolean to 0..1" followed by the SUM operation (in case it overflows, you might want to convert it to a better representation before summing, e.g. DBL. "boolean to 0,1" generates I16).
Message Edited by altenbach on 06-01-2005 02:44 PM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
SumImage.png ‏2 KB

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Converting image into byte array

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0xff000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000
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If you want to convert your int array to a byte array you should
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Greets.

Hi, how can i break the value for a row and column once i have converted the image to the array???????

Hi, I would like to know how can i break the value for a row and column once i have converted the image to the array. I wanted to make some modification on the element of the array at a certain position. how can i do that?
At the moment (as per attachhment), the value of the new row and column will be inserted by the user. But now, I want to do some coding that will automatically insert the new value of the row and the column ( I will use the formula node for the programming). But the question now, I don't know how to split the row and the column. Is it the value of i in the 'for loop'? I've tried to link the 'i' to the input of the 'replace subset array icon' , but i'm unable to do it as i got some error.
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Hi,
Thanks for your reply.Sorry for the confusion.
I manage to change the array element by changing the row and column value. But, what i want is to allow the program to change the array element at a specified row and column value, where the new value is generated automatically by the program.
Atatched is the diagram. I've detailed out the program . you may refer to the comments in the formula node. There are 2 arrays going into the loop. If a >3, then the program will switch to b, where if b =0, then the program will check on the value of the next element which is in the same row with b but in the next column. But if b =45, another set of checking will be done at a dufferent value of row and column.
I hope that I have made the problem clear. Sorry if it is still confusing.
Hope you can help me. Thank you!!!!
Attachments:
arrayrowncolumn2.JPG ‏64 KB

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im not at home or id post some source code but first off
if your going to write a file from a applet your going to
have to get by permisions.
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it would be alot easier
use toolkit.getdefaulttoolkit() to get the image then
use the pixel graber class to read it into a array
of the type you want string or char
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a string and put a comma between each value then use
stringtokenizer to read it back in its less efficient but
for a test run it would make things clearer
sorry if its not much help

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Converting an image into numeric array?

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