Patchify Raster¶

In [1]:

from rasvec import patchify_raster
from rasvec import view_rasters
import glob

from rasvec import patchify_raster from rasvec import view_rasters import glob

In [2]:

rasters_path = 'sample_data/raster/ras.tif'

rasters_path = 'sample_data/raster/ras.tif'

In [3]:

view_rasters(rasters_path)

view_rasters(rasters_path)

In [6]:

patchify_raster(
    raster_path='sample_data/raster/ras.tif', 
    output_path=".", 
    patch_size=256,
    padding = False
)

patchify_raster( raster_path='sample_data/raster/ras.tif', output_path=".", patch_size=256, padding = False )

Patches shape: (3, 5, 256, 256, 3)
Saved the patched files in output dir: .

In [7]:

ras_list = sorted(glob.glob("*.tif"), key = lambda x: x.split(".")[-2])
view_rasters(ras_list, (3,5))

ras_list = sorted(glob.glob("*.tif"), key = lambda x: x.split(".")[-2]) view_rasters(ras_list, (3,5))

padding=True padds the image with 0 to make the size of the image multple of the given patch size

In [9]:

patchify_raster(
    raster_path='sample_data/raster/ras.tif', 
    output_path=".", 
    patch_size=256,
    padding = True
)

patchify_raster( raster_path='sample_data/raster/ras.tif', output_path=".", patch_size=256, padding = True )

Patches shape: (4, 6, 256, 256, 3)
Saved the patched files in output dir: .

In [10]:

ras_list = sorted(glob.glob("*.tif"), key = lambda x: x.split(".")[-2])
view_rasters(ras_list, (4,6))

ras_list = sorted(glob.glob("*.tif"), key = lambda x: x.split(".")[-2]) view_rasters(ras_list, (4,6))