AI Image Enlarger is a free software program for Windows and Mac devices, and an online service, that you may use to turn low definition photos and images into high definition ones.
Most resize operations reduce the size of images or photos, e.g. to prepare them for web publication, integration in Office documents, or sharing. The other way around, to increase the size of a source image, is not nearly as common of an operation, and one of the main reasons for that is that the process impacts the quality of the image significantly usually.
AI Image Enlarger promises that its upscaling technology produces high-quality results that preserve the quality of the source image.
Note: The software program requires a connection to the Internet as the processing of the image is done on the servers of the AI Img Enlarger service and not locally. You can use the online version as well as it offers the same functionality. The software programs and online versions have the following restrictions: accepts jpg, jpeg, and png, images with a resolution of less than 800x750 and a size less than 3 Megabytes.
The application needs to be installed on Windows. The interface of AI Image Enlarger is very basic but a bit more usable than the online version as all options are available right away.
Just drag and drop an image on the program to have it loaded; the application displays a preview of the image right away. Select one of the available image styles and the desired ratio, and hit the submit button to send the data to the server for processing.
The four image styles are artwork, photo, fast, and high-grade, and the ratios 2x and 4x. You may need to experiment with different image styles to achieve the best result but may want to start with the most appropriate one, e.g. photo when you want to process a photo.
I tested the service using a variety of source images and the results were impressive when I compared the processed image with a copy of the image that I resized using regular image editors.
Check out the following two images of a photo that I took while in Japan to see the difference; first the image that was resized to 400% using the image editor Paint.net.
The second image looks crisper than the first; it is not perfect, as you cannot read the text on the base of each of the toys but the toys do look a lot better.
Mileage may vary depending on the source image but generally speaking, the result is usually better than the result of a simple resize operation.
AI Image Enlarger improves the quality of images that you enlarge. The quality of output certainly improves when you use the service; there is little need to use the desktop software as you get all the functionality in the online version as well and since data is processed online anyway, there is no virtually no reason to use the desktop software.
The service limits the type of images that you can process; one option that you have is to convert the image to a supported format or make it smaller so that it can be processed by AI Image Enlarger.
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