Quantum walk inspired JPEG compression of images

Researchers have developed a quantum-walk-inspired optimization (QWIO) framework that significantly enhances standard JPEG compression. The method creates an optimized quantization table, improving image quality by an average of 3 to 6 dB in PSNR while maintaining better edge and structural preservation. Crucially, it remains fully compatible with existing JPEG decoders, requiring no changes for deployment. The technique was validated on MNIST, CIFAR-10, and ImageNet datasets using PSNR, SSIM, and BPP metrics.