Band information statistics of raster data in ArcGIS Engine

Open the workspace (File) where the raster file is located, obtain all its bands, and access each band.
You can use the computestatsandhist () function to calculate a histogram or statistical information in a band.
(Large data volumes may take a long time)

Iworkspacefactory workspacefactory = new rasterworkspacefactory ();
Iworkspace;
Workspace = workspacefactory. openfromfile (filepath, 0 );

Irasterworkspace rastwork = (irasterworkspace) Workspace;
Irasterdataset rastdataset = rastwork. openrasterdataset (pathbox. Text. substring (pathbox. Text. lastindexof ("\") + 1 ));
Irasterdataset2 RD2 = rastdataset as irasterdataset2;
Iraster raster = rd2.createfullraster ();
Irasterbandcollection rb= (irasterbandcollection) raster;
For (INT I = 0; I <RBC. Count; I ++)
{
Irasterband RB = RBC. item (I );
Bool tmpbool;
RB. hasstatistics (Out tmpbool );
If (! Tmpbool)
RB. computestatsandhist ();
Irasterhistogram RH = RB. histogram;
Irasterstatistics rs = RB. Statistics;
}