Question: I'm looking for a solution that can upscale anime-style artwork while preserving colors and edges.

If you're looking for a tool to upscale anime-style artwork while preserving colors and edges, Bigjpg is a powerful option. It employs deep convolutional neural networks to remove noise and serration artifacts, so you can zoom in on photos without losing details. You can zoom up to 16x, and the service promises to preserve colors and edges. It also offers an API so you can build image enlargement into your app, and it protects privacy by deleting uploaded and enlarged images after three days and encrypting image links.

Another good option is Let's Enhance, an AI image enhancement and generation tool. It can upscale low-resolution or blurry images to high resolution and high quality, which is good for anime-style art. The tool can handle batch processing, generate images from text prompts and apply HDR filters for color grading. It also offers an API for business uses, so it's adaptable to many situations.

If you need something more flexible that works with more file formats, Pics Enhancer is another option. It uses AI to upscale low-resolution images, sharpening them and restoring detail and color vibrancy. It works with PNG, JPG, JPEG and WEBP files and can upscale images up to 16X resolution. It's good for eCommerce product images and anime posters or wallpapers.