def worker(tile):
tick = time.monotonic()
progress.update()
try:
x, y, z = map(str, [tile.x, tile.y, tile.z])
os.makedirs(os.path.join(args.out, z, x), exist_ok=True)
except:
return tile, None, False
path = os.path.join(args.out, z, x,
"{}.{}".format(y, args.format))
if os.path.isfile(path): # already downloaded
return tile, None, True
if args.type == "XYZ":
url = args.url.format(x=tile.x, y=tile.y, z=tile.z)
elif args.type == "WMS":
xmin, ymin, xmax, ymax = xy_bounds(tile)
url = args.url.format(xmin=xmin,
ymin=ymin,
xmax=xmax,
ymax=ymax)
res = tile_image_from_url(session, url, args.timeout)
if res is None: # let's retry once
res = tile_image_from_url(session, url, args.timeout)
if res is None:
return tile, url, False
try:
tile_image_to_file(args.out, tile, res)
except OSError:
return tile, url, False
tock = time.monotonic()
time_for_req = tock - tick
time_per_worker = args.workers / args.rate
if time_for_req < time_per_worker:
time.sleep(time_per_worker - time_for_req)
return tile, url, True
def worker(tile_key):
if len(tiles_map[tile_key]) == 1:
return
image = np.zeros((width, height, len(args.bands)), np.uint8)
x, y, z = map(int, tile_key)
for i in range(len(tiles_map[tile_key])):
root = os.path.join(splits_path, str(i))
_, path = tile_from_xyz(root, x, y, z)
if not args.label:
split = tile_image_from_file(path)
if args.label:
split = tile_label_from_file(path)
if len(split.shape) == 2:
split = split.reshape((width, height, 1)) # H,W -> H,W,C
assert image.shape == split.shape, "{}, {}".format(
image.shape, split.shape)
image[np.where(image == 0)] += split[np.where(image == 0)]
if not args.label and is_nodata(image, args.nodata,
args.nodata_threshold,
args.keep_borders):
progress.update()
return
tile = mercantile.Tile(x=x, y=y, z=z)
if not args.label:
tile_image_to_file(args.out, tile, image)
if args.label:
tile_label_to_file(args.out, tile, palette, image)
progress.update()
return tile
def worker(path):
if path in skip:
return None
raster = rasterio_open(path)
w, s, e, n = transform_bounds(raster.crs, "EPSG:4326", *raster.bounds)
tiles = [mercantile.Tile(x=x, y=y, z=z) for x, y, z in mercantile.tiles(w, s, e, n, args.zoom)]
tiled = []
for tile in tiles:
if cover and tile not in cover:
continue
w, s, e, n = mercantile.xy_bounds(tile)
warp_vrt = WarpedVRT(
raster,
crs="epsg:3857",
resampling=Resampling.bilinear,
add_alpha=False,
transform=from_bounds(w, s, e, n, width, height),
width=width,
height=height,
)
data = warp_vrt.read(
out_shape=(len(args.bands), width, height), indexes=args.bands, window=warp_vrt.window(w, s, e, n)
)
if data.dtype == "uint16": # GeoTiff could be 16 bits
data = np.uint8(data / 256)
elif data.dtype == "uint32": # or 32 bits
data = np.uint8(data / (256 * 256))
image = np.moveaxis(data, 0, 2) # C,H,W -> H,W,C
tile_key = (str(tile.x), str(tile.y), str(tile.z))
if (
not args.label
and len(tiles_map[tile_key]) == 1
and is_nodata(image, args.nodata, args.nodata_threshold, args.keep_borders)
):
progress.update()
continue
if len(tiles_map[tile_key]) > 1:
out = os.path.join(splits_path, str(tiles_map[tile_key].index(path)))
else:
out = args.out
x, y, z = map(int, tile)
if not args.label:
tile_image_to_file(out, mercantile.Tile(x=x, y=y, z=z), image, ext=ext)
if args.label:
tile_label_to_file(out, mercantile.Tile(x=x, y=y, z=z), palette, args.nodata, image)
if len(tiles_map[tile_key]) == 1:
tiled.append(mercantile.Tile(x=x, y=y, z=z))
progress.update()
raster.close()
return tiled
def worker(tile):
x, y, z = list(map(str, tile))
if args.masks and args.labels:
label = np.array(Image.open(os.path.join(args.labels, z, x, "{}.png".format(y))))
mask = np.array(Image.open(os.path.join(args.masks, z, x, "{}.png".format(y))))
assert label.shape == mask.shape, "Inconsistent tiles (size or dimensions)"
metrics = dict()
for mm in minmax:
try:
metrics[mm] = getattr(minmax[mm]["module"], "get")(
torch.as_tensor(label, device="cpu"),
torch.as_tensor(mask, device="cpu"),
minmax[mm]["class_id"],
)
except:
progress.update()
return False, tile
if not (minmax[mm]["min"] <= metrics[mm] <= minmax[mm]["max"]):
progress.update()
return True, tile
tiles_compare.append(tile)
if args.mode == "side":
for i, root in enumerate(args.images):
img = tile_image_from_file(tile_from_xyz(root, x, y, z)[1], force_rgb=True)
if i == 0:
side = np.zeros((img.shape[0], img.shape[1] * len(args.images), 3))
side = np.swapaxes(side, 0, 1) if args.vertical else side
image_shape = img.shape
else:
assert image_shape[0:2] == img.shape[0:2], "Unconsistent image size to compare"
if args.vertical:
side[i * image_shape[0] : (i + 1) * image_shape[0], :, :] = img
else:
side[:, i * image_shape[0] : (i + 1) * image_shape[0], :] = img
tile_image_to_file(args.out, tile, np.uint8(side))
elif args.mode == "stack":
for i, root in enumerate(args.images):
tile_image = tile_image_from_file(tile_from_xyz(root, x, y, z)[1], force_rgb=True)
if i == 0:
image_shape = tile_image.shape[0:2]
stack = tile_image / len(args.images)
else:
assert image_shape == tile_image.shape[0:2], "Unconsistent image size to compare"
stack = stack + (tile_image / len(args.images))
tile_image_to_file(args.out, tile, np.uint8(stack))
elif args.mode == "list":
tiles_list.append([tile, metrics])
progress.update()
return True, tile