https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Sat, 16 May 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-05-16-ai-image-upscaling-restoration-2026-topaz-photo-supir-gfpgan-real-esrgan-codeformer-magnific-krea-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-ai-image-upscaling-restoration-2026-topaz-photo-supir-gfpgan-real-esrgan-codeformer-magnific-krea-deep-dive.en Restore an old family photo to 4K, push a low-res e-commerce image to print quality, salvage a blurry video still — AI upscaling is the bridge. This deep dive compares the commercial leaders (Topaz Photo AI v3, Gigapixel 8, Magnific, Krea Upscaler) against open-source heavyweights (Real-ESRGAN, SwinIR, HAT, DAT, DRCT) and the diffusion-based restoration models that now top the leaderboards (SUPIR, StableSR, DiffBIR, SeeSR). Plus face restoration (GFPGAN, CodeFormer), anime upscalers, video pipelines, ComfyUI workflows, PSNR/SSIM/LPIPS evaluation, GPU and Apple Silicon hardware requirements, and real-world workflows for old photos, real estate, e-commerce, manga, and video remastering. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ai-image-upscalingimage-restorationtopaz-photosupirgfpganreal-esrgancodeformermagnifickreasuper-resolutionenglish https://www.youngju.dev/blog/culture/2026-05-16-ai-image-upscaling-restoration-2026-topaz-photo-supir-gfpgan-real-esrgan-codeformer-magnific-krea-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-ai-image-upscaling-restoration-2026-topaz-photo-supir-gfpgan-real-esrgan-codeformer-magnific-krea-deep-dive.ja 古い家族写真を4Kへ、低解像度のECサイト画像を印刷品質へ、ぼやけた映像スチルを救出する — AIアップスケーリングの全貌を一気に整理する。商用のTopaz Photo AI v3・Gigapixel 8・Magnific・Krea Upscalerから、オープンソースのReal-ESRGAN・SwinIR・HAT・DAT・DRCT、拡散ベースのSUPIR・StableSR・DiffBIR・SeeSR、顔復元のGFPGAN・CodeFormerまで網羅。PSNR/SSIM/LPIPSの評価指標、ComfyUIワークフロー、GPUやApple Siliconのハードウェア要件、そして古い写真・不動産・EC・漫画・映像リマスターといった実用ユースケースを解説する。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ai-image-upscalingimage-restorationtopaz-photosupirgfpganreal-esrgancodeformermagnifickreasuper-resolution日本語 https://www.youngju.dev/blog/culture/2026-05-16-ai-image-upscaling-restoration-2026-topaz-photo-supir-gfpgan-real-esrgan-codeformer-magnific-krea-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-ai-image-upscaling-restoration-2026-topaz-photo-supir-gfpgan-real-esrgan-codeformer-magnific-krea-deep-dive 오래된 가족 사진을 4K로 복원하고, 저해상도 e커머스 이미지를 인쇄 품질로 끌어올리고, 흐릿한 영상 스틸을 살려내는 AI 업스케일링 — 2026년 현재 상업용 Topaz Photo AI · Gigapixel 8 · Magnific · Krea부터 오픈소스 Real-ESRGAN · SwinIR · HAT · DAT · DRCT, 디퓨전 기반 SUPIR · StableSR · DiffBIR · SeeSR, 얼굴 복원 GFPGAN · CodeFormer까지 모든 도구를 비교한다. PSNR/SSIM/LPIPS 평가, ComfyUI 워크플로우, GPU/Apple Silicon 하드웨어 요건, 그리고 오래된 사진/부동산/만화/영상 등 실전 사용 사례까지 다룬다. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ai-image-upscalingimage-restorationtopaz-photosupirgfpganreal-esrgancodeformermagnifickreasuper-resolution