Files
wd14-tagger-standalone/tagger/interrogator.py
T
2024-04-23 01:50:00 +09:00

258 lines
7.2 KiB
Python

import os
import pandas as pd
import numpy as np
from typing import Tuple, List, Dict
from io import BytesIO
from PIL import Image
from pathlib import Path
from huggingface_hub import hf_hub_download
import re
import json
from numpy import asarray, float32, expand_dims, exp
tag_escape_pattern = re.compile(r'([\\()])')
import tagger.dbimutils as dbimutils
class Interrogator:
@staticmethod
def postprocess_tags(
tags: Dict[str, float],
threshold=0.35,
additional_tags: List[str] = [],
exclude_tags: List[str] = [],
sort_by_alphabetical_order=False,
add_confident_as_weight=False,
replace_underscore=False,
replace_underscore_excludes: List[str] = [],
escape_tag=False
) -> Dict[str, float]:
for t in additional_tags:
tags[t] = 1.0
# those lines are totally not "pythonic" but looks better to me
tags = {
t: c
# sort by tag name or confident
for t, c in sorted(
tags.items(),
key=lambda i: i[0 if sort_by_alphabetical_order else 1],
reverse=not sort_by_alphabetical_order
)
# filter tags
if (
c >= threshold
and t not in exclude_tags
)
}
new_tags = []
for tag in list(tags):
new_tag = tag
if replace_underscore and tag not in replace_underscore_excludes:
new_tag = new_tag.replace('_', ' ')
if escape_tag:
new_tag = tag_escape_pattern.sub(r'\\\1', new_tag)
if add_confident_as_weight:
new_tag = f'({new_tag}:{tags[tag]})'
new_tags.append((new_tag, tags[tag]))
tags = dict(new_tags)
return tags
def __init__(self, name: str) -> None:
self.name = name
self.providers = ['CPUExecutionProvider']
def load(self):
raise NotImplementedError()
def unload(self) -> bool:
unloaded = False
if hasattr(self, 'model') and self.model is not None:
del self.model
unloaded = True
print(f'Unloaded {self.name}')
if hasattr(self, 'tags'):
del self.tags
return unloaded
def use_gpu(self) -> None:
self.providers = ['CUDAExecutionProvider']
def interrogate(
self,
image: Image
) -> Tuple[
Dict[str, float], # rating confidents
Dict[str, float] # tag confidents
]:
raise NotImplementedError()
class WaifuDiffusionInterrogator(Interrogator):
def __init__(
self,
name: str,
model_path='model.onnx',
tags_path='selected_tags.csv',
**kwargs
) -> None:
super().__init__(name)
self.model_path = model_path
self.tags_path = tags_path
self.kwargs = kwargs
def download(self) -> Tuple[os.PathLike, os.PathLike]:
print(f"Loading {self.name} model file from {self.kwargs['repo_id']}")
model_path = Path(hf_hub_download(
**self.kwargs, filename=self.model_path))
tags_path = Path(hf_hub_download(
**self.kwargs, filename=self.tags_path))
return model_path, tags_path
def load(self) -> None:
model_path, tags_path = self.download()
from onnxruntime import InferenceSession
self.model = InferenceSession(str(model_path), providers=self.providers)
print(f'Loaded {self.name} model from {model_path}')
self.tags = pd.read_csv(tags_path)
def interrogate(
self,
image: Image
) -> Tuple[
Dict[str, float], # rating confidents
Dict[str, float] # tag confidents
]:
# init model
if not hasattr(self, 'model') or self.model is None:
self.load()
# code for converting the image and running the model is taken from the link below
# thanks, SmilingWolf!
# https://huggingface.co/spaces/SmilingWolf/wd-v1-4-tags/blob/main/app.py
# convert an image to fit the model
_, height, _, _ = self.model.get_inputs()[0].shape
# alpha to white
image = image.convert('RGBA')
new_image = Image.new('RGBA', image.size, 'WHITE')
new_image.paste(image, mask=image)
image = new_image.convert('RGB')
image = np.asarray(image)
# PIL RGB to OpenCV BGR
image = image[:, :, ::-1]
image = dbimutils.make_square(image, height)
image = dbimutils.smart_resize(image, height)
image = image.astype(np.float32)
image = np.expand_dims(image, 0)
# evaluate model
input_name = self.model.get_inputs()[0].name
label_name = self.model.get_outputs()[0].name
confidents = self.model.run([label_name], {input_name: image})[0]
tags = self.tags[:][['name']]
tags['confidents'] = confidents[0]
# first 4 items are for rating (general, sensitive, questionable, explicit)
ratings = dict(tags[:4].values)
# rest are regular tags
tags = dict(tags[4:].values)
return ratings, tags
class MLDanbooruInterrogator(Interrogator):
""" Interrogator for the MLDanbooru model. """
def __init__(
self,
name: str,
repo_id: str,
model_path: str,
tags_path='classes.json',
) -> None:
super().__init__(name)
self.model_path = model_path
self.tags_path = tags_path
self.repo_id = repo_id
self.tags = None
self.model = None
def download(self) -> Tuple[str, str]:
print(f"Loading {self.name} model file from {self.repo_id}")
model_path = hf_hub_download(
repo_id=self.repo_id,
filename=self.model_path
)
tags_path = hf_hub_download(
repo_id=self.repo_id,
filename=self.tags_path,
)
return model_path, tags_path
def load(self) -> None:
model_path, tags_path = self.download()
from onnxruntime import InferenceSession
self.model = InferenceSession(model_path,
providers=self.providers)
print(f'Loaded {self.name} model from {model_path}')
with open(tags_path, 'r', encoding='utf-8') as filen:
self.tags = json.load(filen)
def interrogate(
self,
image: Image
) -> Tuple[
Dict[str, float], # rating confidents
Dict[str, float] # tag confidents
]:
# init model
if self.model is None:
self.load()
image = dbimutils.fill_transparent(image)
image = dbimutils.resize(image, 448) # TODO CUSTOMIZE
x = asarray(image, dtype=float32) / 255
# HWC -> 1CHW
x = x.transpose((2, 0, 1))
x = expand_dims(x, 0)
input_ = self.model.get_inputs()[0]
output = self.model.get_outputs()[0]
# evaluate model
y, = self.model.run([output.name], {input_.name: x})
# Softmax
y = 1 / (1 + exp(-y))
tags = {tag: float(conf) for tag, conf in zip(self.tags, y.flatten())}
return {}, tags
def large_batch_interrogate(self, images: List, dry_run=False) -> str:
raise NotImplementedError()