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preview: make tiles subdir and provide default for imagery_offset arg #81

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Merged
merged 3 commits into from
May 11, 2018
Merged

preview: make tiles subdir and provide default for imagery_offset arg #81

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9266236
make tiles subdir and provide default for imagery_offset arg
jreiberkyle May 3, 2018
6f3a154
Pass tiles directory as a parameter, don't hardcode
drewbo May 7, 2018
2579fff
Update test calls
drewbo May 7, 2018
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4 changes: 2 additions & 2 deletions label_maker/images.py
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Original file line number Diff line number Diff line change
Expand Up @@ -66,12 +66,12 @@ def class_test(value):

# download tiles
tiles = class_tiles + background_tiles
print('Downloading {} tiles to {}'.format(len(tiles), op.join(dest_folder, 'tiles')))
print('Downloading {} tiles to {}'.format(len(tiles), tiles_dir))

# get image acquisition function based on imagery string
image_function = download_tile_tms
if is_tif(imagery):
image_function = get_tile_tif

for tile in tiles:
image_function(tile, imagery, dest_folder, imagery_offset)
image_function(tile, imagery, tiles_dir, imagery_offset)
3 changes: 2 additions & 1 deletion label_maker/preview.py
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Expand Up @@ -9,7 +9,7 @@

from label_maker.utils import class_match, download_tile_tms, get_tile_tif, is_tif

def preview(dest_folder, number, classes, imagery, ml_type, imagery_offset, **kwargs):
def preview(dest_folder, number, classes, imagery, ml_type, imagery_offset=False, **kwargs):
"""Produce imagery examples for specified classes

Parameters
Expand Down Expand Up @@ -55,6 +55,7 @@ def preview(dest_folder, number, classes, imagery, ml_type, imagery_offset, **kw
for i, cl in enumerate(classes):
# create class directory
class_dir = op.join(dest_folder, 'examples', cl.get('name'))

if not op.isdir(class_dir):
makedirs(class_dir)

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8 changes: 4 additions & 4 deletions label_maker/utils.py
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Expand Up @@ -24,16 +24,16 @@ def class_match(ml_type, label, i):
return np.count_nonzero(label == i)
return None

def download_tile_tms(tile, imagery, dest_folder, *args):
def download_tile_tms(tile, imagery, folder, *args):
"""Download a satellite image tile from a tms endpoint"""
o = urlparse(imagery)
_, image_format = op.splitext(o.path)
r = requests.get(url(tile.split('-'), imagery))
tile_img = op.join(dest_folder, 'tiles', '{}{}'.format(tile, image_format))
tile_img = op.join(folder, '{}{}'.format(tile, image_format))
open(tile_img, 'wb').write(r.content)
return tile_img

def get_tile_tif(tile, imagery, dest_folder, imagery_offset):
def get_tile_tif(tile, imagery, folder, imagery_offset):
"""
Read a GeoTIFF with a window corresponding to a TMS tile

Expand Down Expand Up @@ -80,7 +80,7 @@ def get_tile_tif(tile, imagery, dest_folder, imagery_offset):
src.read(k, window=window, out=data[k - 1], boundless=True)

# save
tile_img = op.join(dest_folder, 'tiles', '{}{}'.format(tile, '.jpg'))
tile_img = op.join(folder, '{}{}'.format(tile, '.jpg'))
img = Image.fromarray(np.moveaxis(data, 0, -1), mode='RGB')
img.save(tile_img)

Expand Down
6 changes: 3 additions & 3 deletions test/unit/test_utils.py
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Expand Up @@ -52,7 +52,7 @@ def test_get_tile_tif(self):
if not op.isdir(tiles_dir):
makedirs(tiles_dir)

get_tile_tif(tile, 'test/fixtures/drone.tif', dest_folder, None)
get_tile_tif(tile, 'test/fixtures/drone.tif', tiles_dir, None)
test_tile = Image.open('test/tiles/{}.jpg'.format(tile))
fixture_tile = Image.open('test/fixtures/{}.jpg'.format(tile))
self.assertEqual(test_tile, fixture_tile)
Expand All @@ -66,7 +66,7 @@ def test_get_tile_tif_offset(self):
if not op.isdir(tiles_dir):
makedirs(tiles_dir)

get_tile_tif(tile, 'test/fixtures/drone.tif', dest_folder, [128, 64])
get_tile_tif(tile, 'test/fixtures/drone.tif', tiles_dir, [128, 64])
test_tile = Image.open('test/tiles/{}.jpg'.format(tile))
fixture_tile = Image.open('test/fixtures/{}_offset.jpg'.format(tile))
self.assertEqual(test_tile, fixture_tile)
Expand All @@ -80,7 +80,7 @@ def test_get_tile_vrt(self):
if not op.isdir(tiles_dir):
makedirs(tiles_dir)

get_tile_tif(tile, 'test/fixtures/drone.vrt', dest_folder, None)
get_tile_tif(tile, 'test/fixtures/drone.vrt', tiles_dir, None)
test_tile = Image.open('test/tiles/{}.jpg'.format(tile))
fixture_tile = Image.open('test/fixtures/{}.jpg'.format(tile))
self.assertEqual(test_tile, fixture_tile)
Expand Down