vit base nsfw detector
简介
核心亮点
- 基于 ViT-Base 架构,图像特征识别能力强
- 适用于社区图片上传的自动化内容审核
- 部署简单,可作为预处理插件快速集成
- Apache-2.0 协议,对商业应用非常友好
使用方法
# 安装 Hugging Face transformers
pip install transformers torch
# 使用 transformers 加载模型
from transformers import AutoModel, AutoTokenizer
model = AutoModel.from_pretrained("AdamCodd/vit-base-nsfw-detector")
tokenizer = AutoTokenizer.from_pretrained("AdamCodd/vit-base-nsfw-detector")
Hugging Face 下载
我们推荐使用命令行或者 Hugging Face Hub SDK 来进行模型的下载。
操作指引:在下载前,请先通过如下命令安装 huggingface_hub:
pip install -U huggingface_hub
命令行下载
下载完整模型库
huggingface-cli download AdamCodd/vit-base-nsfw-detector
下载单个文件到指定本地文件夹(以下载 config.json 到当前路径下 ./dir 目录为例)
huggingface-cli download AdamCodd/vit-base-nsfw-detector config.json --local-dir ./dir
SDK 下载
# 模型下载
from huggingface_hub import snapshot_download
model_dir = snapshot_download('AdamCodd/vit-base-nsfw-detector')
Git 下载
请确保 lfs 已经被正确安装
git lfs install
git clone https://huggingface.co/AdamCodd/vit-base-nsfw-detector
如果您希望跳过 lfs 大文件下载,可以使用如下命令
GIT_LFS_SKIP_SMUDGE=1 git clone https://huggingface.co/AdamCodd/vit-base-nsfw-detector
模型文件托管在 Hugging Face Hub,使用 HF CLI / SDK / Git 直接下载,不经过本站。
PyTorch / Transformers 使用
安装 Transformers
pip install -U transformers torch
模型加载和推理
from transformers import AutoModelForCausalLM, AutoTokenizer
model = AutoModelForCausalLM.from_pretrained('AdamCodd/vit-base-nsfw-detector')
tokenizer = AutoTokenizer.from_pretrained('AdamCodd/vit-base-nsfw-detector')
完整文档
---
metrics:
- accuracy
pipeline_tag: image-classification
base_model: google/vit-base-patch16-384
model-index:
- name: AdamCodd/vit-base-nsfw-detector
results:
- task:
type: image-classification
name: Image Classification
metrics:
- type: accuracy
value: 0.9654
name: Accuracy
- type: AUC
value: 0.9948
- type: loss
value: 0.0937
name: Loss
license: apache-2.0
tags:
- transformers.js
- transformers
- nlp
---
vit-base-nsfw-detector
This model is a fine-tuned version of vit-base-patch16-384 on around 25_000 images (drawings, photos...).
It achieves the following results on the evaluation set:
- Loss: 0.0937
- Accuracy: 0.9654
<u>New [07/30]</u>: I created a new ViT model specifically to detect NSFW/SFW images for stable diffusion usage (read the disclaimer below for the reason): AdamCodd/vit-nsfw-stable-diffusion.
Disclaimer: This model wasn't made with generative images in mind! There is no generated image in the dataset used here, and it performs significantly worse on generative images, which will require another ViT model specifically trained on generative images. Here are the model's actual scores for generative images to give you an idea:
- Loss: 0.3682 (↑ 292.95%)
- Accuracy: 0.8600 (↓ 10.91%)
- F1: 0.8654
- AUC: 0.9376 (↓ 5.75%)
- Precision: 0.8350
- Recall: 0.8980
Model description
The Vision Transformer (ViT) is a transformer encoder model (BERT-like) pretrained on a large collection of images in a supervised fashion, namely ImageNet-21k, at a resolution of 224x224 pixels. Next, the model was fine-tuned on ImageNet (also referred to as ILSVRC2012), a dataset comprising 1 million images and 1,000 classes, at a higher resolution of 384x384.
Intended uses & limitations
There are two classes: SFW and NSFW. The model has been trained to be restrictive and therefore classify "sexy" images as NSFW. That is, if the image shows cleavage or too much skin, it will be classified as NSFW. This is normal.
Usage for a local image:
from transformers import pipeline
from PIL import Image
img = Image.open("<path_to_image_file>")
predict = pipeline("image-classification", model="AdamCodd/vit-base-nsfw-detector")
predict(img)
Usage for a distant image:
from transformers import ViTImageProcessor, AutoModelForImageClassification
from PIL import Image
import requests
url = 'http://images.cocodataset.org/val2017/000000039769.jpg'
image = Image.open(requests.get(url, stream=True).raw)
processor = ViTImageProcessor.from_pretrained('AdamCodd/vit-base-nsfw-detector')
model = AutoModelForImageClassification.from_pretrained('AdamCodd/vit-base-nsfw-detector')
inputs = processor(images=image, return_tensors="pt")
outputs = model(**inputs)
logits = outputs.logits
predicted_class_idx = logits.argmax(-1).item()
print("Predicted class:", model.config.id2label[predicted_class_idx])
Predicted class: sfw
Usage with Transformers.js (Vanilla JS):
/* Instructions:
- - Place this script in an HTML file using the <script type="module"> tag.
- - Ensure the HTML file is served over a local or remote server (e.g., using Python's http.server, Node.js server, or similar).
- - Replace 'https://example.com/path/to/image.jpg' in the classifyImage function call with the URL of the image you want to classify.
*
- Example of how to include this script in HTML:
- <script type="module" src="path/to/this_script.js"></script>
*
- This setup ensures that the script can use imports and perform network requests without CORS issues.
*/
import { pipeline, env } from 'https://cdn.jsdelivr.net/npm/@xenova/[email protected]';
// Since we will download the model from HuggingFace Hub, we can skip the local model check
env.allowLocalModels = false;
// Load the image classification model
const classifier = await pipeline('image-classification', 'AdamCodd/vit-base-nsfw-detector');
// Function to fetch and classify an image from a URL
async function classifyImage(url) {
try {
const response = await fetch(url);
if (!response.ok) throw new Error('Failed to load image');
const blob = await response.blob();
const image = new Image();
const imagePromise = new Promise((resolve, reject) => {
image.onload = () => resolve(image);
image.onerror = reject;
image.src = URL.createObjectURL(blob);
});
const img = await imagePromise; // Ensure the image is loaded
const classificationResults = await classifier([img.src]); // Classify the image
console.log('Predicted class: ', classificationResults[0].label);
} catch (error) {
console.error('Error classifying image:', error);
}
}
// Example usage
classifyImage('https://example.com/path/to/image.jpg');
// Predicted class: sfw
The model has been trained on a variety of images (realistic, 3D, drawings), yet it is not perfect and some images may be wrongly classified as NSFW when they are not. Additionally, please note that using the quantized ONNX model within the transformers.js pipeline will slightly reduce the model's accuracy.
You can find a toy implementation of this model with Transformers.js here.
Training and evaluation data
More information needed
Training procedure
Training hyperparameters
The following hyperparameters were used during training:
- learning_rate: 3e-05
- train_batch_size: 32
- eval_batch_size: 32
- seed: 42
- optimizer: Adam with betas=(0.9,0.999) and epsilon=1e-08
- num_epochs: 1
Training results
- Validation Loss: 0.0937
- Accuracy: 0.9654,
- AUC: 0.9948
Confusion matrix (eval):
[1076 37]
[ 60 1627]
Framework versions
- Transformers 4.36.2
- Evaluate 0.4.1
If you want to support me, you can here.