How I Built a Pipeline to Restore Old B&W Photos to 4K Color Using Open-Source AI

This story was originally published on HackerNoon at: https://hackernoon.com/how-i-built-a-pipeline-to-restore-old-bandw-photos-to-4k-color-using-open-source-ai. Turn old B&W photos into 4K color with open-source AI. I tested 8 tools across 6 GPUs — only one produced stunning results in 42 seconds. Check more stories related to tech-stories at: https://hackernoon.com/c/tech-stories. You can also check exclusive content about #qwen, #ai, #image-restoration, #huggingface, #black-and-white, #ollama, #open-source-ai, #hackernoon-top-story, and more. This story was written by: @fix2015. Learn more about this writer by checking @fix2015's about page, and for more stories, please visit hackernoon.com. I tested 8 different open-source AI upscalers and restoration tools to find the best pipeline for converting old black-and-white film footage into 4K colorized images for a YouTube history channel. After days of testing on rented GPU servers, the winning pipeline is surprisingly simple: Qwen-Image-Edit-2511 does everything — upscale, restore, AND colorize — in a single prompt, in under 60 seconds.