Problems in segmentation and generation of polygons

[Carlos Leandro Cordeiro]

Hello all, I'd like some help. I am working with segmentation and classification of a region in Brazil. I can segment, calculate statistics, and import the attribute table. But when I try Polygonize the raster to have the segments in .SHP it comes in lines and not in polygons. If I transform lines and polygons into qgis or arcgis it gives me more polygons than the existing one in the raster and I can not unite the attribute table with shp correctly. Could someone help me with this?

Thanks

The example image is attached.

1 - polygonization in lines

2- Line to polygon

3- Attribute table of the polygons with null values

[Pete Bunting [pfb]]

Dear Carlos,

How are you creating a vector from your clumps image file?

I use gdal_polygonize.py and have had no problems. This is also the rsgislib function rsgislib.vectorutils.polygoniseRaster(inputImg, outShp, imgBandNo=1, maskImg=None, imgMaskBandNo=1), which uses the same GDAL function as gdal_polygonize.py.

Best wishes,

Pete

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