CODE EXAMPLE FOR PYTHON

gdal split bog image to small python

import os, gdal
from gdalconst import *

width = 512
height = 512
tilesize = 64

for i in range(0, width, tilesize):
    for j in range(0, height, tilesize):
        gdaltranString = "gdal_translate -of GTIFF -srcwin "+str(i)+", "+str(j)+", "+str(tilesize)+", " 
            +str(tilesize)+" utm.tif utm_"+str(i)+"_"+str(j)+".tif"
        os.system(gdaltranString)