Abstract
Digital misinformation threatens news credibility through sophisticated image forgery techniques (Copy-Move, Splicing, Deepfake). This study introduces the first Hybrid CNN-ViT framework for 4-class news media forgery detection, achieving 94.2% accuracy and 0.935 F1-score on a novel 10K News dataset. The gated fusion architecture optimally balances ResNet50+EfficientNetB3 (α=52.2%, local features) with ViT-B/16(β=47.8%, global context), enabling superior discrimination across Authentic (96.5%), Copy-Move (95.8%), Splicing (93.7%), and Deepfake (90.5%) categories. Class weights mitigate multi-class imbalance, with training stability confirmed (12.8 min GPU, no overfitting).Comparative analysis against 12 state-of-the-art studies demonstrates 1.5-11.9% superiority, establishing news-specific SOTA absent in prior CASIAv2/CIFAKE binary approaches. Future work targets Deepfake enhancement (>95%) via frequency augmentation and multimodal text integration.
Keywords
4-Class Forgery Detection
deep learning
Deepfake Detection.
Digital news verification systems
Hybrid CNN-ViT
Image Manipulation Classification
News Media Verification fake news Analysis