How to increase resolution of an image on Windows 11/10?

This is a powerful command-line tool for how to increase resolution of image with professional AI upscaling. It leverages GPU acceleration to deliver high-quality results, making it ideal for users comfortable with terminal operations who want fast, flexible image enhancement.

User Guide: First, download the software and extract it. Open a Command Prompt or Terminal in the extracted folder, then run the following command: realesrgan-ncnn-vulkan.exe -i input.jpg -o output.png -s 4. You can adjust the parameters as needed: use -s 2 for 2x upscaling, -s 4 for 4x upscaling, and use -m models-... to select different AI models suitable for your image type.

With just basic command-line knowledge, this guide will quickly help you clearly understand and execute how to increase resolution of image for any image, effectively solving the problem of low-resolution files.

It is particularly useful for batch processing large numbers of images, automating upscaling workflows, or achieving professional-grade results for photos, anime, and illustrations.