[gdal-dev] geoTiff to tiles

[len lee]

I am working with 2gb large geotiff image.I need convert the large geoTiff
to tiles (about 250x250 pixels) with c++ language;

i dont wanna read the whole geotiff file since it is gonna be real slow ..
i want to get the tiles according to geographic position and

i am not sure exactly how to do it or what sort of utilities i should use
within gdal;

I'm neither an expert on GeoTIFFs nor GDAL, and I greatly appreciate the
assistance!
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