import os import re from typing import Mapping, Tuple, Dict import cv2 import gradio as gr import numpy as np import pandas as pd from PIL import Image from huggingface_hub import hf_hub_download from onnxruntime import InferenceSession # noinspection PyUnresolvedReferences def make_square(img, target_size): old_size = img.shape[:2] desired_size = max(old_size) desired_size = max(desired_size, target_size) delta_w = desired_size - old_size[1] delta_h = desired_size - old_size[0] top, bottom = delta_h // 2, delta_h - (delta_h // 2) left, right = delta_w // 2, delta_w - (delta_w // 2) color = [255, 255, 255] return cv2.copyMakeBorder(img, top, bottom, left, right, cv2.BORDER_CONSTANT, value=color) # noinspection PyUnresolvedReferences def smart_resize(img, size): # Assumes the image has already gone through make_square if img.shape[0] > size: img = cv2.resize(img, (size, size), interpolation=cv2.INTER_AREA) elif img.shape[0] < size: img = cv2.resize(img, (size, size), interpolation=cv2.INTER_CUBIC) else: # just do nothing pass return img class WaifuDiffusionInterrogator: def __init__( self, repo='SmilingWolf/wd-v1-4-vit-tagger', model_path='model.onnx', tags_path='selected_tags.csv', mode: str = "auto" ) -> None: self.__repo = repo self.__model_path = model_path self.__tags_path = tags_path self._provider_mode = mode self.__initialized = False self._model, self._tags = None, None def _init(self) -> None: if self.__initialized: return model_path = hf_hub_download(self.__repo, filename=self.__model_path) tags_path = hf_hub_download(self.__repo, filename=self.__tags_path) self._model = InferenceSession(str(model_path)) self._tags = pd.read_csv(tags_path) self.__initialized = True def _calculation(self, image: Image.Image) -> pd.DataFrame: self._init() # 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 = make_square(image, height) image = 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 confidence = self._model.run([label_name], {input_name: image})[0] full_tags = self._tags[['name', 'category']].copy() full_tags['confidence'] = confidence[0] return full_tags def interrogate(self, image: Image) -> Tuple[Dict[str, float], Dict[str, float]]: full_tags = self._calculation(image) # first 4 items are for rating (general, sensitive, questionable, explicit) ratings = dict(full_tags[full_tags['category'] == 9][['name', 'confidence']].values) # rest are regular tags tags = dict(full_tags[full_tags['category'] != 9][['name', 'confidence']].values) return ratings, tags WAIFU_MODELS: Mapping[str, WaifuDiffusionInterrogator] = { 'wd14-vit': WaifuDiffusionInterrogator(), 'wd14-convnext': WaifuDiffusionInterrogator( repo='SmilingWolf/wd-v1-4-convnext-tagger' ), } RE_SPECIAL = re.compile(r'([\\()])') def image_to_wd14_tags(image: Image.Image, model_name: str, threshold: float, use_spaces: bool, use_escape: bool, include_ranks: bool, score_descend: bool) \ -> Tuple[Mapping[str, float], str, Mapping[str, float]]: model = WAIFU_MODELS[model_name] ratings, tags = model.interrogate(image) filtered_tags = { tag: score for tag, score in tags.items() if score >= threshold } text_items = [] tags_pairs = filtered_tags.items() if score_descend: tags_pairs = sorted(tags_pairs, key=lambda x: (-x[1], x[0])) for tag, score in tags_pairs: tag_outformat = tag if use_spaces: tag_outformat = tag_outformat.replace('_', ' ') if use_escape: tag_outformat = re.sub(RE_SPECIAL, r'\\\1', tag_outformat) if include_ranks: tag_outformat = f"({tag_outformat}:{score:.3f})" text_items.append(tag_outformat) output_text = ', '.join(text_items) return ratings, output_text, filtered_tags if __name__ == '__main__': with gr.Blocks() as demo: with gr.Row(): with gr.Column(): gr_input_image = gr.Image(type='pil', label='Original Image') with gr.Row(): gr_model = gr.Radio(list(WAIFU_MODELS.keys()), value='wd14-vit', label='Waifu Model') gr_threshold = gr.Slider(0.0, 1.0, 0.5, label='Tagging Confidence Threshold') with gr.Row(): gr_space = gr.Checkbox(value=False, label='Use Space Instead Of _') gr_escape = gr.Checkbox(value=True, label='Use Text Escape') gr_confidence = gr.Checkbox(value=False, label='Keep Confidences') gr_order = gr.Checkbox(value=True, label='Descend By Confidence') gr_btn_submit = gr.Button(value='Tagging', variant='primary') with gr.Column(): gr_ratings = gr.Label(label='Ratings') with gr.Tabs(): with gr.Tab("Tags"): gr_tags = gr.Label(label='Tags') with gr.Tab("Exported Text"): gr_output_text = gr.TextArea(label='Exported Text') gr_btn_submit.click( image_to_wd14_tags, inputs=[gr_input_image, gr_model, gr_threshold, gr_space, gr_escape, gr_confidence, gr_order], outputs=[gr_ratings, gr_output_text, gr_tags], api_name="wdtag", ) demo.queue(os.cpu_count()).launch()