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How to double the size of any image without losing quality

27 mayo, 2021

If I told you that there is a way to resize an image to twice its size without making it look pixelated and lose visual quality in the process, you probably would not believe me, or you would assume that it is a rather complicated task that may only be in the hands of an expert. But, that is exactly what this tool does.

The best part is that you don’t have to learn anything special or use a super complicated program. Really? I swear. It sounds like too good a deal to be true, but it isn’t. waifu2x is a website from which you can improve the resolution of illustrations and photos while reducing noise and avoiding artifacts.

If more than once it has happened to you that you have a photo or a very small illustration and you want to use it for a project in which you need it to be larger, you must have noticed that simply stretching it in basic programs such as Paint, or in some more advanced ones such as Gimp or Photoshop, it doesn’t give you the best results.

Here comes the magic of waifu2x, which has that name basically because the project was created with the purpose of increase the resolution of anime / manga style digital art, although it works with photos too. waifu2x is an open source project, you can learn more about it from its page on GitHub.


Its operation is extremely simple, all you have to do is paste the URL where the image you want to improve is hosted, or select the file from your computer. You have some limits: maximum image size is 5MB, noise reduction will be efficient at a maximum of 3000×3000 pixels, and increased resolution applies to images up to 1500×1500.

Considering that the purpose of the tool is to increase the size, these limits are hardly a bother for you, since you have a lot of room to maneuver. Once your image is selected just you must mark if it is an illustration or a photograph, select the noise reduction level (by default it is medium and it is recommended), choose a resolution increase level, and press the Download button. You don’t have to believe me, just try and smile.

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