Waifu2x pioneered anime-style image enhancement using convolutional neural networks. It doubles resolution while intelligently reducing JPEG artifacts and smoothing pixelation without blurring line art. The open-source algorithm has become industry standard among manga scanlation groups and anime figure photographers. Offline version supports batch processing entire comic archives. Unique edge-preserving technology maintains the characteristic sharpness of cel-style artwork during upscaling, outperforming generic photo enhancers for this niche.