# AI Image Upscaler

High-quality image upscaling using advanced interpolation algorithms with sharpening enhancement

> Canonical page: https://elysiatools.com/en/tools/image-quality-upscaler

- **Category:** Media

- **Keywords:** image upscale, quality enhancement, lanczos interpolation, sharpening, high resolution

## Overview

The AI Image Upscaler allows you to increase the resolution of your images using advanced interpolation algorithms like Lanczos3, combined with customizable sharpening and color enhancement. It supports common formats like JPG, PNG, WebP, BMP, and TIFF, enabling you to scale by factors up to 8x or define custom target dimensions while maintaining the original aspect ratio.

## Inputs

- **Select Image File** (file): Supports JPG, PNG, WebP, BMP, TIFF and other common image formats
- **Scale Factor** (select): Select scale factor (2x is recommended for best quality and details)
- **Target Width (Optional)** (number): Set to use this width instead of scale factor
- **Target Height (Optional)** (number): Set to use this height instead of scale factor
- **Maintain Aspect Ratio** (checkbox): Maintain the original image aspect ratio
- **Interpolation** (select): Lanczos3 provides best quality, Nearest is fastest
- **Sharpen Amount** (range): Enhance image details, higher values create stronger sharpening effect
- **Color Enhancement** (checkbox): Slightly enhance color saturation and brightness
- **Output Format** (select): JPEG for photos, PNG for images with transparency
- **Output Quality** (range): Output image quality (1-100), only for JPEG and WebP

## When to use

- When you need to increase the resolution of low-resolution photos or graphics for print or high-definition displays.
- When you want to sharpen blurry details and enhance colors in compressed web images.
- When you need to resize images to specific target widths or heights without losing quality or distorting the aspect ratio.

## How it works

- Upload your image file in JPG, PNG, WebP, BMP, or TIFF format.
- Select a scale factor from 1.5x to 8x, or specify custom target dimensions.
- Choose your preferred interpolation method, adjust the sharpening level, and toggle color enhancement.
- Select the output format and quality, then process the image to download the upscaled file.

## Use cases

- Upscaling legacy digital photos to print-ready resolutions.
- Enhancing web graphics and screenshots for high-density Retina displays.
- Preparing low-resolution product images for e-commerce platforms.

## Frequently asked questions

### What image formats are supported?

You can upload JPG, PNG, WebP, BMP, and TIFF files up to 50MB.

### Which interpolation method should I choose?

Lanczos3 is recommended for the highest quality results, while Nearest is the fastest option.

### Can I set a specific width and height instead of a scale factor?

Yes, you can enter custom target width and height values and choose whether to maintain the original aspect ratio.

### What does the sharpening option do?

The sharpening amount slider enhances fine details and edges in the upscaled image, with values ranging from 0 to 5.

### Which output formats can I download?

You can export your upscaled image as JPEG, PNG, or WebP.

## Related tools

- [Gradient Image Extender](https://elysiatools.com/en/tools/image-extend-gradient): Extend image canvas with gradient backgrounds for modern design effects and smooth transitions
- [Image Padder](https://elysiatools.com/en/tools/image-pad): Advanced image padding tool with multiple fill strategies - transparent background, mirror, repeat, or solid colors
- [Image Canvas Extender](https://elysiatools.com/en/tools/image-extend): Basic image canvas extension tool for adding space around images with various fill strategies
- [Blur Background Image Extender](https://elysiatools.com/en/tools/image-extend-blur-background): Extend image canvas with blurred background, perfect for portraits, product photos, and professional presentations
- [Image Gradient Operation](https://elysiatools.com/en/tools/image-gradient): Apply gradient operations (Sobel, Prewitt, Roberts) for edge detection and image enhancement
- [Image Laplacian Operator](https://elysiatools.com/en/tools/image-laplacian): Apply Laplacian operator for edge detection, sharpening, and image enhancement with different kernel variants
- [Image Sharpening](https://elysiatools.com/en/tools/image-sharpen): Enhance image clarity and sharpness with adjustable sharpening intensity and multiple sharpening methods
- [Batch Image Compress](https://elysiatools.com/en/tools/batch-compress): Compress multiple images with quality control, output format selection, and size optimization

## Samples

- [Web Image Processing Python Samples](https://elysiatools.com/en/samples/web-image-processing-python): Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
- [Web Image Processing Rust Samples](https://elysiatools.com/en/samples/web-image-processing-rust): Web Rust image processing examples including image read/save, scaling, and format conversion
- [Android Image Processing Java Samples](https://elysiatools.com/en/samples/android-image-processing-java): Android Java image processing examples including reading/saving images, scaling, and format conversion
- [Android Image Processing Kotlin Samples](https://elysiatools.com/en/samples/android-image-processing-kotlin): Android Kotlin image processing examples including reading/saving images, scaling, and format conversion