Datawhale X 魔搭AI夏令营第四期 AIGC文生图方向 Task2笔记 - qidao123.com技术社区-IT企服评测·应用市场

!pip install simple-aesthetics-predictor
!pip install -v -e data-juicer
!pip uninstall pytorch-lightning -y
!pip install peft lightning pandas torchvision
!pip install -e DiffSynth-Studio
from modelscope.msdatasets import MsDataset
ds = MsDataset.load(
'AI-ModelScope/lowres_anime',
subset_name='default',
split='train',
cache_dir="/mnt/workspace/kolors/data"
)
import json, os
from data_juicer.utils.mm_utils import SpecialTokens
from tqdm import tqdm
os.makedirs("./data/lora_dataset/train", exist_ok=True)
os.makedirs("./data/data-juicer/input", exist_ok=True)
with open("./data/data-juicer/input/metadata.jsonl", "w") as f:
for data_id, data in enumerate(tqdm(ds)):
image = data["image"].convert("RGB")
image.save(f"/mnt/workspace/kolors/data/lora_dataset/train/{data_id}.jpg")
metadata = {"text": "二次元", "image": [f"/mnt/workspace/kolors/data/lora_dataset/train/{data_id}.jpg"]}
f.write(json.dumps(metadata))
f.write("\n")
data_juicer_config = """
# global parameters
project_name: 'data-process'
dataset_path: './data/data-juicer/input/metadata.jsonl' # path to your dataset directory or file
np: 4 # number of subprocess to process your dataset
text_keys: 'text'
image_key: 'image'
image_special_token: '<__dj__image>'
export_path: './data/data-juicer/output/result.jsonl'
# process schedule
# a list of several process operators with their arguments
process:
- image_shape_filter:
min_width: 1024
min_height: 1024
any_or_all: any
- image_aspect_ratio_filter:
min_ratio: 0.5
max_ratio: 2.0
any_or_all: any
"""
with open("data/data-juicer/data_juicer_config.yaml", "w") as file:
file.write(data_juicer_config.strip())
!dj-process --config data/data-juicer/data_juicer_config.yaml
import pandas as pd
import os, json
from PIL import Image
from tqdm import tqdm
texts, file_names = [], []
os.makedirs("./data/data-juicer/output/images", exist_ok=True)
with open("./data/data-juicer/output/result.jsonl", "r") as f:
for line in tqdm(f):
metadata = json.loads(line)
texts.append(metadata["text"])
file_names.append(metadata["image"][0])
df = pd.DataFrame({"text": texts, "file_name": file_names})
df.to_csv("./data/data-juicer/output/result.csv", index=False)
df
from transformers import CLIPProcessor, CLIPModel
import torch
model = CLIPModel.from_pretrained("openai/clip-vit-base-patch32")
processor = CLIPProcessor.from_pretrained("openai/clip-vit-base-patch32")
images = [Image.open(img_path) for img_path in df["file_name"]]
inputs = processor(text=df["text"].tolist(), images=images, return_tensors="pt", padding=True)
outputs = model(**inputs)
logits_per_image = outputs.logits_per_image # this is the image-text similarity score
probs = logits_per_image.softmax(dim=1) # we can take the softmax to get the probabilities
probs
from torch.utils.data import Dataset, DataLoader
class CustomDataset(Dataset):
def __init__(self, df, processor):
self.texts = df["text"].tolist()
self.images = [Image.open(img_path) for img_path in df["file_name"]]
self.processor = processor
def __len__(self):
return len(self.texts)
def __getitem__(self, idx):
inputs = self.processor(text=self.texts[idx], images=self.images[idx], return_tensors="pt", padding=True)
return inputs
dataset = CustomDataset(df, processor)
dataloader = DataLoader(dataset, batch_size=8)
for batch in dataloader:
outputs = model(**batch)
logits_per_image = outputs.logits_per_image
probs = logits_per_image.softmax(dim=1)
print(probs)
import torch
from diffusers import StableDiffusionPipeline
torch.manual_seed(1)
pipe = StableDiffusionPipeline.from_pretrained("CompVis/stable-diffusion-v-1-4", torch_dtype=torch.float16)
pipe = pipe.to("cuda")
prompt = "二次元，一个紫色长发小女孩穿着粉色吊带漏肩连衣裙，在练习室练习唱歌，手持话筒"
negative_prompt = "丑陋、变形、嘈杂、模糊、低对比度"
guidance_scale = 4
num_inference_steps = 50
image = pipe(
prompt=prompt,
negative_prompt=negative_prompt,
guidance_scale=guidance_scale,
num_inference_steps=num_inference_steps,
height=1024,
width=1024,
).images[0]
image.save("example_image.png")
image
from PIL import Image
torch.manual_seed(1)
image = pipe(
prompt="二次元，日系动漫，演唱会的观众席，人山人海，一个紫色短发小女孩穿着粉色吊带漏肩连衣裙坐在演唱会的观众席，舞台上衣着华丽的歌星们在唱歌",
negative_prompt="丑陋、变形、嘈杂、模糊、低对比度",
cfg_scale=4,
num_inference_steps=50, height=1024, width=1024,
)
image.save("1.jpg")
torch.manual_seed(1)
image = pipe(
prompt="二次元，一个紫色短发小女孩穿着粉色吊带漏肩连衣裙坐在演唱会的观众席，露出憧憬的神情",
negative_prompt="丑陋、变形、嘈杂、模糊、低对比度，色情擦边",
cfg_scale=4,
num_inference_steps=50, height=1024, width=1024,
)
image.save("2.jpg")
torch.manual_seed(2)
image = pipe(
prompt="二次元，一个紫色短发小女孩穿着粉色吊带漏肩连衣裙坐在演唱会的观众席，露出憧憬的神情",
negative_prompt="丑陋、变形、嘈杂、模糊、低对比度，色情擦边",
cfg_scale=4,
num_inference_steps=50, height=1024, width=1024,
)
image.save("3.jpg")
torch.manual_seed(5)
image = pipe(
prompt="二次元，一个紫色短发小女孩穿着粉色吊带漏肩连衣裙，对着流星许愿，闭着眼睛，十指交叉，侧面",
negative_prompt="丑陋、变形、嘈杂、模糊、低对比度，扭曲的手指，多余的手指",
cfg_scale=4,
num_inference_steps=50, height=1024, width=1024,
)
image.save("4.jpg")
torch.manual_seed(0)
image = pipe(
prompt="二次元，一个紫色中等长度头发小女孩穿着粉色吊带漏肩连衣裙，在练习室练习唱歌",
negative_prompt="丑陋、变形、嘈杂、模糊、低对比度",
cfg_scale=4,
num_inference_steps=50, height=1024, width=1024,
)
image.save("5.jpg")
torch.manual_seed(1)
image = pipe(
prompt="二次元，一个紫色长发小女孩穿着粉色吊带漏肩连衣裙，在练习室练习唱歌，手持话筒",
negative_prompt="丑陋、变形、嘈杂、模糊、低对比度",
cfg_scale=4,
num_inference_steps=50, height=1024, width=1024,
)
image.save("6.jpg")
torch.manual_seed(7)
image = pipe(
prompt="二次元，紫色长发少女，穿着黑色连衣裙，试衣间，心情忐忑",
negative_prompt="丑陋、变形、嘈杂、模糊、低对比度",
cfg_scale=4,
num_inference_steps=50, height=1024, width=1024,
)
image.save("7.jpg")
torch.manual_seed(0)
image = pipe(
prompt="二次元，紫色长发少女，穿着黑色礼服，连衣裙，在台上唱歌",
negative_prompt="丑陋、变形、嘈杂、模糊、低对比度",
cfg_scale=4,
num_inference_steps=50, height=1024, width=1024,
)
image.save("8.jpg")
import numpy as np
from PIL import Image
images = [np.array(Image.open(f"{i}.jpg")) for i in range(1, 9)]
image = np.concatenate([
np.concatenate(images[0:2], axis=1),
np.concatenate(images[2:4], axis=1),
np.concatenate(images[4:6], axis=1),
np.concatenate(images[6:8], axis=1),
], axis=0)
image = Image.fromarray(image).resize((1024, 2048))
image

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