Hello everyone,

I tried to merge/stitch my 1000 geotif images, each of around 4gb using rasterio.

files = glob.glob('*.tif')

src_files = []

for fi in files:

    src = rasterio.open(fi)

    src_files.append(src)

mosaic, out_trans = merge(src_files)

out_meta = src.meta.copy()

out_meta.update({"driver": "GTiff",

                  "height": mosaic.shape[1],

                  "width": mosaic.shape[2],

                  "transform": out_trans,

                  "crs": src.crs})

with rasterio.open(fo, "w", **out_meta) as dest:

     dest.write(mosaic)

Unfortunately, I could not proceed with the Memory error.

I could merge/stitch them using gdal translate, though it was very slow. So, physical memory should not be problem. To speed up, I  tried rasterio, but did not work. Any help to make it possible would be appreciated.

Thank you.

Simon