Image Upscaler
Extension Actions
- Extension status: Featured
Upscale an image using artificial intelligence or a native HTML5 engine in your browser!
Image Upscaler is an extension that enables you to upscale an image inside your browser.
It uses three different techniques to upscale the input image. The first (and the default) method is using the HTML5 Canvas API to upscale the images up to 10 times the original size. The Canvas API has a built-in interpolation method for pixel smoothing. The final result with the HTML5 method is somehow satisfactory but lacks some details and may not be sharp enough. Two other methods use artificial intelligence for upscaling. The first AI is client-side and uses UpscalerJS (https://github.com/thekevinscott/UpscalerJS) & TensorFlow (https://github.com/tensorflow/tfjs) libraries. The second AI is server-side and uses the ClipDrop API (https://clipdrop.co/apis/docs/super-resolution). Please read the privacy policy for this addon here (https://mybrowseraddon.com/privacy-policy/image-upscaler.html).
Note 1: for the canvas method (default engine), the maximum upscale factor is 10x, for the client-side AI it is 8x, and server-side 4x.
Note 2: for both AI methods, it is recommended to use small images as the upscaling process with artificial intelligence is computationally expensive. In server-side AI, an API key is needed; please read the instruction within the extension on how to get the API key.
If you have a feature request or found a bug to report, please fill out the bug report form on the addon homepage (https://mybrowseraddon.com/image-upscaler.html).
Latest reviews
- CT - 7567
- This needs an update. It works as specified, and it does so offline. Unfortunately, on the images I tested (diagrams), the client-side AI is not noticeably clearer than the canvas upscaler. The client-side AI cannot deal with compression artifacts, which is the most important component of the AI upscaling. If all the system did was clear up the compression artifacting that almost every image online has without even upscaling, one could then use the canvas upscaling to get adequate images. Unfortunately, the client-side upscaler cannot do this and instead preserves and amplifies these compression artifacts. Another unfortunate aspect of the program is how the client-side upscaler creates its own artifacts. It creates a grid of multicolor dots throughout the image, and has strange lines emerge between these dots. As the client-side upscaler is exponentially slower than the HTML canvas upscaler and already does not create a noticeably cleaner image, the fact that it then adds its own artifacts to the image makes it practically useless. If this program were to use a newer upscaling algorithm that cleaned up compression artifacts and didn't add it's own artifacts, this would be an easy 4/5 program. If you could then choose to have it output its images as .png's or another lossless image format, it would be an easy 5/5.
- Robbie Smith
- It serve no purpose. Do not install.
- John Malan
- There are websites which do a far better job.