As all we are know
there is two type of raster: 1) color raster (e.g. satellite
Image) and 2) numeric raster (e.g. DEM). I am find in FME, there is
tutorial available for converting numeric raster (DEM) to polygon but I want to
precisely converting agriculture crops field which is almost rectangle shape
from satellite Image to polygon.

Until here, i am
segmented NIR image by using new tools in ArcMap Segment
Mean Shift. out put of that 8 bit RGB image which has mean value
of input RGB NIR image based on spatial and spectral parameter. Now in
FME, i want to make pure shapefile of natural rectangle shapes like field in
image. i think there is fme raster expression which can done my job. Now
in FME i have to design expression based on segmented raster value RGB and once
again they marge apropriyetly and make pure one rectangle segment.. Last
using RasterToPolygonCoercer we should achieve our goal.

Attached file “Sample_Data.rar” has 2 sample file: 1. Originals Image (NIR_Originals.tif) 2. Segmented Image (Segmented.tif).
Thanks