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README.md
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- Diffusors
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- GanDetectors
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- Cifake
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- **Funded by [optional]:** [Funding Source(s)]
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- **Shared by [optional]:** [Organization/Individual(s) Sharing the Model]
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- **Model type:** Vision Transformer (ViT)
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- **Language(s) (NLP):** N/A
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- **License:** Apache License 2.0
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- **Finetuned from model [optional]:** [Base Pre-trained Model]
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### Recommendations
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Users should be aware of potential biases and limitations when using the model for classification tasks, and additional data sources may be necessary to mitigate biases.
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## How to Get Started with the Model
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Use the code below to get started with the model:
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[Code Snippet for Model Usage]
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## Training Details
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The model was trained on the CIFake dataset, which contains real and AI-generated synthetic images for training the classification model.
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### Training Procedure
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#### Preprocessing [optional]
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Data preprocessing techniques were applied to the training data, including normalization and data augmentation to improve model generalization.
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#### Training Hyperparameters
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- **Training regime:** Fine-tuning with a learning rate of 0.0000001
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- **Batch Size:** 64
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- **Epochs:** 100
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#### Speeds, Sizes, Times [optional]
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- **Training Time:** 1 hr 36 min
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## Evaluation
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### Testing Data, Factors & Metrics
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#### Testing Data
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The model was evaluated on a separate test set from the CIFake dataset.
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#### Factors
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The evaluation considered factors such as class imbalance and dataset diversity.
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#### Metrics
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- Diffusors
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- GanDetectors
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- Cifake
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base_model:
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- google/vit-base-patch16-224
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# AI Guard Vision Model Card
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[](LICENSE)
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## Overview
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This model, **AI Guard Vision**, is a Vision Transformer (ViT)-based architecture designed for image classification tasks. Its primary objective is to accurately distinguish between real and AI-generated synthetic images. The model addresses the growing challenge of detecting manipulated or fake visual content to preserve trust and integrity in digital media.
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## Model Summary
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- **Model Type:** Vision Transformer (ViT) – `vit-base-patch16-224`
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- **Objective:** Real vs. AI-generated image classification
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- **License:** Apache 2.0
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- **Fine-tuned From:** `google/vit-base-patch16-224`
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- **Training Dataset:** [CIFake Dataset](https://www.kaggle.com/datasets/birdy654/cifake-real-and-ai-generated-synthetic-images)
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- **Developer:** Aashish Kumar, IIIT Manipur
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## Applications & Use Cases
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- **Content Moderation:** Identifying AI-generated images across media platforms.
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- **Digital Forensics:** Verifying the authenticity of visual content for investigative purposes.
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- **Trust Preservation:** Helping maintain the integrity of digital ecosystems by combating misinformation spread through fake images.
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## How to Use the Model
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```python
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from transformers import AutoImageProcessor, ViTForImageClassification
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import torch
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from PIL import Image
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from pillow_heif import register_heif_opener, register_avif_opener
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register_heif_opener()
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register_avif_opener()
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def get_prediction(img):
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image = Image.open(img).convert('RGB')
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image_processor = AutoImageProcessor.from_pretrained("AashishKumar/AIvisionGuard-v2")
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model = ViTForImageClassification.from_pretrained("AashishKumar/AIvisionGuard-v2")
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inputs = image_processor(image, return_tensors="pt")
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with torch.no_grad():
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logits = model(**inputs).logits
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top2_labels = logits.topk(2).indices.squeeze().tolist()
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top2_scores = logits.topk(2).values.squeeze().tolist()
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response = [{"label": model.config.id2label[label], "score": score} for label, score in zip(top2_labels, top2_scores)]
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return response
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```
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## Dataset Information
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The model was fine-tuned on the **CIFake dataset**, which contains both real and AI-generated synthetic images:
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- **Real Images:** Collected from the CIFAR-10 dataset.
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- **Fake Images:** Generated using Stable Diffusion 1.4.
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- **Training Data:** 100,000 images (50,000 per class).
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- **Testing Data:** 20,000 images (10,000 per class).
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## Model Architecture
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- **Transformer Encoder Layers:** Utilizes self-attention mechanisms.
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- **Positional Encodings:** Helps the model understand image structure.
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- **Pretrained Weights:** Pretrained on ImageNet-21k and fine-tuned on ImageNet 2012 for enhanced performance.
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### Why Vision Transformer?
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- **Scalability and Performance:** Excels at high-level global feature extraction.
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- **State-of-the-Art Accuracy:** Leverages transformers to outperform traditional CNN models.
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## Training Details
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- **Learning Rate:** 0.0000001
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- **Batch Size:** 64
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- **Epochs:** 100
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- **Training Time:** 1 hr 36 min
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## Evaluation Metrics
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The model was evaluated using the CIFake test dataset, with the following metrics:
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- **Accuracy:** 92%
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- **F1 Score:** 0.89
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- **Precision:** 0.85
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- **Recall:** 0.88
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| Model | Accuracy | F1-Score | Precision | Recall |
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|---------------|----------|----------|-----------|--------|
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| Baseline | 85% | 0.82 | 0.78 | 0.80 |
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| Augmented | 88% | 0.85 | 0.83 | 0.84 |
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| Fine-tuned ViT| **92%** | **0.89** | **0.85** | **0.88**|
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## System Workflow
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- **Frontend:** ReactJS
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- **Backend:** Python Flask
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- **Database:** PostgreSQL
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- **Model:** Deployed via Pytorch and TensorFlow frameworks
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## Strengths and Limitations
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### Strengths:
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- **High Accuracy:** Achieves state-of-the-art performance in distinguishing real and synthetic images.
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- **Pretrained on ImageNet-21k:** Allows for efficient transfer learning and robust generalization.
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### Limitations:
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- **Synthetic Image Diversity:** The model may underperform on novel or unseen synthetic images that are significantly different from the training data.
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- **Data Bias:** Like all machine learning models, its predictions may reflect biases present in the training data.
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## Conclusion and Future Work
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This model provides a highly effective tool for detecting AI-generated synthetic images and has promising applications in content moderation, digital forensics, and trust preservation. Future improvements may include:
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- **Hybrid Architectures:** Combining transformers with convolutional layers for improved performance.
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- **Multimodal Detection:** Incorporating additional modalities (e.g., metadata or contextual information) for more comprehensive detection.
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