Waifu2x ncnn: Image upscaler

Archie Meng

Contains adsIn-app purchases

About this app

The first decent GPU accelerated image upscaler / enlarger / enhancer on Android.

Still bothering for the upscale amount limits of online services? Try this app for free. No amount limits and forced queue time here. Only your device performance can limit what you can do here. :)

It runs on your own devices locally, and doesn't require you to upload any images to some remote servers.

What is processed on your devices, always stays on your devices.

It supports the famous image upscale / denoise models: CUNet / UpConv-Photo / UpConv-Anime / RealCUGAN models.

- 1. The google play service and ads SDK still needs network access.
- 2. More models including RealSR, Real-ESRGAN will be ported in the future.
- 3. The actual elapsed time depends on device performance.
- 4. Click for 5 times on Version number in settings to enable the hidden advanced settings.
- 5. The "process image as a whole" mode is the default and only way of processing now.

For those devices which receives blank result during GPU mode processing, try to use CPU mode and see if it works.

Note: This may be caused by an out-of-date GPU driver. If you can the GPU driver for your device (either by flashing a newer ROM or using a GPU driver update module), please try to do so first if you meet processing errors. And this is how I solve the GPU processing problems on my Redmi 3S. :)

Ratings and reviews

This app is absolutely fantastic! It's incredibly powerful and it manages to render and upscale the same way that a computer or cloud processing but completely locally on my phone. It's really cool that it allows you to use your GPU allocation towards processing the images. It completely surprised me how high quality is an abscess is in the functionality allows while only having a single instance of literally the most non-intrusive Ad in a tiny box the very bottom of the page. Thanks 4 FOSS ❤️❤

When it works it works amazingly but alot of the time it doesn't even try and gives me blank black files. Happens alot and i have to wait days for it to work again even when i restart my phone or delete the app. Also can you bring back process as one image i don't like it being done in sections. I'm on a Samsung Galaxy s20

11/25: I like it, but I don't use Gallery apps... it's really messy and chaotic in there. I would much rather pick images from my file explorer instead. Too bad you can't share an image to the app, would be way quicker. 1/8: The developer added this feature and it works awesomely, thanks developer! 👻💕

What's new

Add "override default ncnn options" configuration in advanced settings.
If you have wrong results or get unsatisfied with the speed, you may try to customize your own options with this new settings.