- click
- gdal
- pypi:
pip install cogeotiff
- source code:
python setup.py install
- create cog file example:
from cogeotiff.cog import create_cog
src_path = '~/path_to_image/test.tif'
dest_path = '~/path_to_save/test.tiff.cog'
create_cog(src_path, dest_path, compress='jpeg')
- validate cog file
from cogeotiff.validate_cogeotiff import validate_cog
cog_path = '~/path_to_cog.tif.cog'
result = validate_cog(cog_path)
- create cog file
Usage: cog create [OPTIONS] SRC_PATH DST_PATH
Options:
--overview-resampling TEXT resampling method for create pyramid default:
nearest
--overview-level INTEGER levels to build
--nodata INTEGER Assign a specified nodata value to output bands.
default: 0
--block-size INTEGER tiled size, default: 512
--compress TEXT compress method: JPEG,RAW,DEFLATE,LZW,WEBP,ZSTD,PACKBITS,default: raw
--help Show this message and exit.
- validate cog file
Usage: cog create [OPTIONS] COG_PATH
- Q: why not use
GDAL BuildOverviews
orRasterio
in script? - A: Because for large file such as 100GB, it's take long time to generate overview and translate to tiled GeoTiff. There is no progress infomataion use
Rasterio
orGDAL BuildOverviews
methods. - Q: why not use rio-cogeo?
- A: Cause it use
rasterio MemoryFile()
, when the file is too large, it will cause insufficient memory.