265c61df1a
replaced by blank images in the stitching process and completly broken images are also replaced by blank images which are passed through and are classified as 'other' with all_pased == False. This should be changed in the future by introducing a new key to the response, indicating that the image is not valid.
72 lines
2.3 KiB
Python
72 lines
2.3 KiB
Python
import os
|
|
from functools import partial
|
|
from itertools import chain, tee
|
|
|
|
from funcy import rcompose, first, compose, second, chunks, identity, rpartial
|
|
from tqdm import tqdm
|
|
|
|
from image_prediction.config import CONFIG
|
|
from image_prediction.default_objects import (
|
|
get_formatter,
|
|
get_mlflow_model_loader,
|
|
get_image_classifier,
|
|
get_extractor,
|
|
get_encoder,
|
|
)
|
|
from image_prediction.locations import MLRUNS_DIR
|
|
from image_prediction.utils.generic import lift, starlift
|
|
|
|
os.environ["TF_CPP_MIN_LOG_LEVEL"] = "3"
|
|
|
|
|
|
def load_pipeline(**kwargs):
|
|
model_loader = get_mlflow_model_loader(MLRUNS_DIR)
|
|
model_identifier = CONFIG.service.mlflow_run_id
|
|
|
|
pipeline = Pipeline(model_loader, model_identifier, **kwargs)
|
|
|
|
return pipeline
|
|
|
|
|
|
def parallel(*fs):
|
|
return lambda *args: (f(a) for f, a in zip(fs, args))
|
|
|
|
|
|
def star(f):
|
|
return lambda x: f(*x)
|
|
|
|
|
|
class Pipeline:
|
|
def __init__(self, model_loader, model_identifier, batch_size=16, verbose=True, **kwargs):
|
|
self.verbose = verbose
|
|
|
|
extract = get_extractor(**kwargs)
|
|
classifier = get_image_classifier(model_loader, model_identifier)
|
|
reformat = get_formatter()
|
|
represent = get_encoder()
|
|
|
|
split = compose(star(parallel(*map(lift, (first, first, second)))), rpartial(tee, 3))
|
|
classify = compose(chain.from_iterable, lift(classifier), partial(chunks, batch_size))
|
|
pairwise_apply = compose(star, parallel)
|
|
join = compose(starlift(lambda prd, rpr, mdt: {"classification": prd, **mdt, "representation": rpr}), star(zip))
|
|
|
|
# />--classify--\
|
|
# --extract-->--split--+->--encode---->+--join-->reformat
|
|
# \>--identity--/
|
|
|
|
self.pipe = rcompose(
|
|
extract, # ... image-metadata-pairs as a stream
|
|
split, # ... into an image stream and a metadata stream
|
|
pairwise_apply(classify, represent, identity), # ... apply functions to the streams pairwise
|
|
join, # ... the streams by zipping
|
|
reformat, # ... the items
|
|
)
|
|
|
|
def __call__(self, pdf: bytes, page_range: range = None):
|
|
yield from tqdm(
|
|
self.pipe(pdf, page_range=page_range),
|
|
desc="Processing images from document",
|
|
unit=" images",
|
|
disable=not self.verbose,
|
|
)
|