[GRASS-user] Converting raster to Vector (areas)- Question

Luis Lisboa luislisboa1975 at gmail.com
Wed Jul 21 05:06:22 EDT 2010


Greetings
I have a labeled/classified image like this (hoje this displayed correctly
):

1 1 1 1 1 1 3
2 2 2 1 1 1 3
2 2 1 1 1 1 3
2 1 4 4 4 4 4
4 4 4 4 4 4 4

When I convert this to vector (areas) the pixel with value 1 in row 4 is
considered a different "area" from the one with all ones but it shouldn't
because it's connected with the 1 big area by pixel corner.
My question is: how can I convert tyhis to vector and still consider that 1
as being part of the big clusters of 1?

Thanks

Luis
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