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Browse free open source Image Upscalers and projects below. Use the toggles on the left to filter open source Image Upscalers by OS, license, language, programming language, and project status.

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  • 1
    QualityScaler

    QualityScaler

    Image/video AI upscaler app (BSRGAN)

    Qualityscaler is a Windows app that uses BSRGAN Artificial Intelligence to enhance, enlarge and reduce noise in photographs and videos. QualityScaler is completely written in Python, from the backend to the front end. Image/list of images upscale. Video upscale. Drag&drop files [image / multiple images/video] Automatic image tiling and merging to avoid gpu VRAM limitation. Resize image/video before upscaling. Multiple Gpu support. Compatible images - png, jpeg, bmp, webp, tif. Compatible video - mp4, wemb, gif, mkv, flv, avi, mov, qt.
    Downloads: 190 This Week
    Last Update:
    See Project
  • 2
    Upscayl

    Upscayl

    Free and Open Source AI Image Upscaler for Linux, MacOS and Windows

    Free and Open Source AI Image Upscaler for Linux, MacOS and Windows built with Linux-First philosophy. Upscayl is a cross-platform application built with the Linux-first philosophy. This means that we prioritize Linux builds over others but that doesn't mean we'll break things for other OSes. Upscayl does not work without a GPU, sorry. You'll need a Vulkan-compatible GPU to upscale images. CPU or iGPU won't work. You can also download the flatpak version and double-click the flatpak file to install via Store but wait for the full release, we'll be pushing it to Flathub for easy access. Upscayl uses AI models to enhance your images by guessing what the details could be. It uses Real-ESRGAN (and more in the future) model to achieve this. The CLI tool is called real-esrgan-ncnn-vulkan and it's available on the Real-ESRGAN repository.
    Downloads: 144 This Week
    Last Update:
    See Project
  • 3
    Waifu2x-Extension-GUI

    Waifu2x-Extension-GUI

    Photo/Video/GIF enlargement using machine learning

    Image & GIF & Video Super-Resolution using Deep Convolutional Neural Networks. Built-in image processing algorithm: Waifu2x / SRMD / RealSR / Anime4K / ACNet Built-in image processing engine: Waifu2x-caffe / Waifu2x-converter / Waifu2x-ncnn-vulkan / SRMD-ncnn-vulkan / RealSR-ncnn-vulkan / Anime4KCPP Github: https://github.com/AaronFeng753/Waifu2x-Extension-GUI
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    Downloads: 630 This Week
    Last Update:
    See Project
  • 4
    Dream Textures

    Dream Textures

    Stable Diffusion built-in to Blender

    Create textures, concept art, background assets, and more with a simple text prompt. Use the 'Seamless' option to create textures that tile perfectly with no visible seam. Texture entire scenes with 'Project Dream Texture' and depth to image. Re-style animations with the Cycles render pass. Run the models on your machine to iterate without slowdowns from a service. Create textures, concept art, and more with text prompts. Learn how to use the various configuration options to get exactly what you're looking for. Texture entire models and scenes with depth to image. Inpaint to fix up images and convert existing textures into seamless ones automatically. Outpaint to increase the size of an image by extending it in any direction. Perform style transfer and create novel animations with Stable Diffusion as a post processing step. Dream Textures has been tested with CUDA and Apple Silicon GPUs. Over 4GB of VRAM is recommended.
    Downloads: 15 This Week
    Last Update:
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  • 5
    waifu2x

    waifu2x

    Single-image super-resolution for anime-style art

    Single-Image Super-Resolution for Anime-Style Art using Deep Convolutional Neural Networks. And it supports photo. You can train your own model, change image size, reduce image noise, upscale and customize your image's style. It provides the option of converting and downloading your edited images.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 6
    HDcube

    HDcube

    This is an ESRGAN model trained specifically for upscaling GameCube

    This is an ESRGAN model trained specifically for upscaling GameCube and Wii textures, but it can of course be used for other textures from that period, like PlayStation 2, Xbox or PC games from that time. It can be used for all image formats supported by Gamecube and Wii hardware and can remove its typical artifacts like CMPR Block Compression (DXT1 algorithm, also known as BC1), color palette errors, color reduction up to 8bit color depth and 1bit alpha depth. I recommend chaiNNer, which offers a graphical user interface and is based on a node system that can be used to solve very simple as well as very complex tasks effectively by "chaining" nodes together. You get the best quality if you upscale the alpha channel separately.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 7
    Waifu2x GUI

    Waifu2x GUI

    An app that upscales anime-styled images, gifs, and videos

    This is a GUI app that can upscale anime-styled images, gifs, and videos using waifu2x or Real-ESRGAN Anime. It aims to be simple to use, but you can access more advanced settings in the top bar. Upscaling videos and gifs will take a very long time without a high-end graphics card! The Real-ESRGAN Anime upscaler is much faster and gives better results than waifu2x, so it is recommended to use it instead. Real-ESRGAN only supports scale factors between 2-4, and all other waifu2x options are ignored. By setting the scale factor to 4x, it will use the slower Anime4x model but this gives better results, so it is recommended to upscale images at 4x when using Real-ESRGAN. Apply effects such as speed or reverse (animated images/videos). Customize settings (noise, scale, mode, framerate, etc.). Upscale multiple images (or multiple frames of an animated image/video) concurrently. Change the upscaler (waifu2x or Real-ESRGAN Anime).
    Downloads: 2 This Week
    Last Update:
    See Project
  • 8
    Image Super-Resolution (ISR)

    Image Super-Resolution (ISR)

    Super-scale your images and run experiments with Residual Dense

    The goal of this project is to upscale and improve the quality of low-resolution images. This project contains Keras implementations of different Residual Dense Networks for Single Image Super-Resolution (ISR) as well as scripts to train these networks using content and adversarial loss components. Docker scripts and Google Colab notebooks are available to carry training and prediction. Also, we provide scripts to facilitate training on the cloud with AWS and Nvidia-docker with only a few commands. When training your own model, start with only PSNR loss (50+ epochs, depending on the dataset) and only then introduce GANS and feature loss. This can be controlled by the loss weights argument. The weights used to produce these images are available directly when creating the model object. ISR is compatible with Python 3.6 and is distributed under the Apache 2.0 license.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    Batch Auto Upscale Images xBRZ

    Batch Auto Upscale Images xBRZ

    Auto Upscale All Images Using xBRZ 234x

    This tool allows you to easily upscale all your PNG, JPG and GIF images en masse, such as pixel art or AI-generated art, using the open source, amazing, best-in-class, hyperfast non-AI xBRZ algorithm. Unlike the original xBRZ preview program which could only do one image at a time, the new .bat script allows you to mass upscale ALL your images in bulk without needing to fumble with unintuitive commandline nonsense! Perfect for the layperson artist. This is NOT a creative AI upscale type of thing, but it IS better than a typical simple upscale like Lanczos, Mitchell, Bilinear, etc.! It creates cool stylized results! Unlike AI-driven upscaling, which takes gigabytes of space and enormous processing power, xBRZ is lightweight and can run on a potato PC! Only 5MB! (Source code is included with the program .zip file.)
    Downloads: 4 This Week
    Last Update:
    See Project
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  • 10

    waifu2x-ROS

    ReactOS and Windows XP compatible build of waifu2x.

    To speed up, use "-b 256 -j 4" options. The original is there: https://github.com/WL-Amigo/waifu2x-converter-cpp Here are some minor cosmetic changes (switch to control memory usage and slightly reformatted output) and files needed to build under MinGW32-W64. To recompile (in Linux), run "make clean; make". 2016-10-17 UPDATE: added simple GUI. 2016-10-18 FIX: corrected typo, added some crashes handling. 2016-11-20 UPDATE: - added "TTA" and "number of passes" options; - enabled RGB models (without internal upscaling); - updated JPEG, TIFF, WebP and OpenEXR libraries; - modified OpenCV to enable JPEG compression in TIFF images (sources included); - replaced models with Nagadomi's ones (https://github.com/nagadomi/waifu2x). 2016-12-28: Happy New Year and Merry Christmas! - "Stop" button works; updated OpenCV, WebP and JasPer libraries; - fix: didn't filter images when scale < 0.5; fixed conversion to 8 bpp in OpenCV and reading of some JPEG-compressed TIFFs in LibTIFF.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 11

    waifu2x-cpu-torch-vks

    waifu2x fork without CUDA

    The original is here: https://github.com/nagadomi/waifu2x Differences: - CPU only, no CUDA needed; - double-precision version; - GPU and CPU-trained models (on the fly conversion in memory); - adapted for Lua v5.2 (works with Torch 7 on x32 Ubuntu). 31-12-2016: - removed unneeded data copies, left from CUDA processing; - removed large duplicate files (see "ReadMe" before use).
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    PNG Upscale

    PNG Upscale

    AI Super - Resolution

    Download is available from the Releases Page or Google Drive or MediaFire. Be careful when trying to resize very large pictures, it can take considerable time and resources. To upscale an image you just need to choose a mode, load a picture and press start. Save button can be used to choose an output folder and filename before you start the process (either just name or .png) You can double-click the text box to change [Dark - Light] theme (disabled when upScaling) Use PNG images for best results. Download the executable corresponding with your operating system, and the Models folder. It's possible to download only some of the models if you want (It just won't let you use them inside the program) The Models folder needs to be in the same directory as the Jar/Exe to use them.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13

    blitz-image

    GPU-accelerated image processing for java

    blitz-image is a library to support extremely fast image processing in java, harnessing GPU acceleration via OpenCL. Although more features will be added in time, the initial focus is on very fast high-quality image resizing, including bicubic resizing (both upscale and downscale). The performance of a typical bicubic upscale operation is typically in the order of 10 times faster than via the standard AWT mechanism using RenderingHints.VALUE_INTERPOLATION_BICUBIC. The library depends on Aparapi (https://code.google.com/p/aparapi/). Any GPU supporting OpenCL should be supported (including low-end GPUs without double-precision fp support), and there is automatic fallback to pure java implementations for all operations in the event that there is no OpenCL support available. A high-level API allows for very easy use from AWT/Swing, whilst the low-level array-based API allows integration with any imaging framework (e.g. from Android or SWT).
    Downloads: 0 This Week
    Last Update:
    See Project
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Open Source Image Upscalers Guide

Open source image upscalers are a popular tool used to increase the quality and size of digital images. They allow users to enlarge pictures while maintaining or improving their resolution. An open source image upscaler is one where anyone can access and modify the code, making it an ideal option for developers who want to customize and extend features as needed.

Image upscaling works by analyzing an existing image, recognizing patterns, and filling in extra details where needed in order to create a larger version of the same photo. This process often takes advantage of state-of-the-art deep learning algorithms that enable the software to make educated guesses about what additional details should be added so that there is an overall improvement in quality when compared with simply enlarging an image without any modification.

For those looking for an easy-to-use open source tool for upscaling images, most offer some basic options such as pixel interpolation or bicubic interpolation which allows different types of resizing operations on photographs according as well as several other advanced settings like sharpening, blur removal or noise reduction. Some tools also provide batch processing capability so multiple files can be upscaled at once.

Open source image upscalers are great because they provide flexibility and customization options that proprietary solutions may not have without having prohibitive subscription fees which makes them more accessible especially for smaller businesses or personal use cases. In addition, since anyone can access the code, this is a great way to gain experience with working with artificial intelligence technologies like machine learning and computer vision which are becoming increasingly important for developers who want to take their skillsets into the future.

What Features Do Open Source Image Upscalers Provide?

  • Bicubic Interpolation: Bicubic image interpolation is a technique used to increase the resolution of an image by making use of pixel values already present within the image. It works by averaging surrounding pixels together to create new ones, and provides high quality results with minimal artifacts or distortion.
  • Lanczos Resampling: Lanczos resampling is a technique that uses mathematical formulas to mathematically predict what the missing information between pixels should look like when upscaling an image. It tends to produce very clear images with sharp edges, but can sometimes introduce aliasing artifacts depending on the complexity of the original image.
  • Neural Network Upscaling: Neural networks analyze existing data about how two different versions of an image should look, and then use this knowledge to upscale low-resolution images into higher resolutions while preserving their original qualities. This feature can be useful when recreating textures in games or photographs accurately at higher resolutions.
  • Multiple Output Formats: Many open source upscalers offer multiple output formats for their creations, including TIFF, PNG, GIF, JPEG and more. This allows users to choose whatever format best fits their needs without having to convert files once they are finished scaling them up.

Types of Open Source Image Upscalers

  • Neural Network-based Upscaling: These types of open source image upscalers use machine learning techniques to intelligently fill in details and enhance existing images. This process can produce visually convincing results for some images, with minimal artifacts and distortions.
  • Patch-based Upscaling: This approach uses small patches or local regions of the image to increase the resolution by blending or averaging colors within each patch. The result typically has a slightly blurry look, but is smoother than other methods.
  • Single Image Super-Resolution (SISR): This technique combines several lower resolution versions of an image into a single high-resolution version by utilizing edge detection algorithms to eliminate artifacts caused by blurring or misaligned pixels.
  • Waifu2x: A computer vision algorithm that specializes in anime/manga style artwork with scalable levels of noise reduction, color adjustment, sharpening, and cropping built-in for optimal results.
  • Fast Photo Style Transfer: Also known as “image stylization” this method predicts how light interacts with different surfaces based on pre-defined parameters like hue, saturation, value etc., creating a realistic but modified version of the original image while retaining its primary characteristics.

What Are the Advantages Provided by Open Source Image Upscalers?

  1. Cost Savings: Open source image upscalers offer cost savings by eliminating the need to purchase expensive software licenses. Instead, users can access high-quality upscaling tools at no cost, allowing them to save money while still receiving the same quality results.
  2. Community Support: Open source image upscalers are supported by a large community of users who share tips and troubleshooting advice with one another. This allows users to benefit from others' experiences, further increasing their understanding of how to use and optimize the tools they're using.
  3. Customizable Features: Because these tools are open source, users can modify them as needed in order to suit their specific requirements. This means that even those with little coding knowledge can make tweaks and customizations to get the exact result they want from their images.
  4. Flexibility: Some open-source image upscalers have been designed for use on multiple platforms or devices, making them ideal for businesses or individuals who wish to transfer their images between systems seamlessly and easily.
  5. Security: Many open-source image upscalers are regularly updated in order to stay secure against potential threats or bugs. This makes them reliable sources of high-quality pictures, increasing user confidence and peace of mind when working with these services.

What Types of Users Use Open Source Image Upscalers?

  • Graphic Designers: Graphic designers use upscalers to create visuals with a higher resolution.
  • Video Game Developers: Video game developers use upscalers to maximize the quality of their images and textures on different platforms.
  • Photographers: Photographers often use upscaler software to increase the size of their photos without sacrificing its quality.
  • Business Owners: Open source image upscalers provide business owners an affordable way to produce beautiful visuals for advertising or website design while saving costs in the long run.
  • Educators & Researchers: Up scalers are also used by educators and researchers as part of projects or presentations that require high-quality images.
  • Journalists & Content Creators: Content creators such as journalists often need access to high-resolution images, but may not have the budget for costly services, so open source image upscalers are helpful here too.

How Much Do Open Source Image Upscalers Cost?

Open source image upscalers are typically free to use. There are a few premium versions of open source image upscalers available, but they can be quite expensive, ranging from a few hundred to several thousand dollars. The main benefit of using an open source tool over commercial alternatives is the cost savings associated with not paying for a license or upgrade fees. Additionally, many open source tools offer features and capabilities that commercial options usually do not have. Furthermore, the community around the project means there is often support available if you get stuck trying to work something out on your own. Finally, some open source tools provide access to experimental algorithms that might help you achieve better results than what may be available via commercial applications.

What Software Do Open Source Image Upscalers Integrate With?

Software that can integrate with open source image upscalers can include various types of software, such as photo editors, file conversion programs, and image management applications. Photo editors can incorporate the upscaler into their processes to quickly convert images to larger sizes without altering the quality significantly. File conversion programs allow users to change the format of an image while using the upscaler so they maintain their resolution when converting between different formats. Image management and storage applications provide a centralized hub for users to store and share images after they have been modified by the upscaler. Any software that works with images or files could integrate these features in some way.

Trends Related to Open Source Image Upscalers

  1. Open source image upscalers use sophisticated algorithms to increase the resolution of an image, making it appear sharper and higher quality.
  2. These tools are becoming more popular due to their ability to improve the quality of images without large investments in expensive software or hardware.
  3. Many open source image upscalers are available, allowing users to choose the best tool for their needs.
  4. Open source image upscalers have become increasingly powerful, with some now able to handle multiple images at once and even create new textures from scratch.
  5. Most open source image upscalers are free and easily accessible, making them attractive options for users who want to enhance their images without breaking the bank.
  6. These tools can be used on a variety of platforms, including desktop computers, mobile devices, and web browsers.
  7. Open source image upscalers are now able to process images faster than ever before, reducing processing times from hours to minutes.
  8. The increasing popularity of these tools has led to increased development in this area, resulting in a wide range of features and options for users to choose from.

How Users Can Get Started With Open Source Image Upscalers

Using open source image upscalers is a great way to improve the quality of pictures and photos. Getting started with open source image upscalers is actually very easy.

First, you’ll need to find an appropriate open source image upscaler. There are many on the web, but some of the most popular include ImageMagick, Waifu2X-caffe, and Super Resolution. All three of these offer good results at different levels of difficulty.

Once you have chosen your preferred upscaler software, go ahead and download it onto your computer so you can begin using it for photo editing. Once downloaded just follow the instructions that come with the software in order to install the program properly onto your system. Make sure that you read all instructions carefully as this will ensure smooth operation when utilizing it for image enhancement later on.

The next step is to select which photo or picture you want to upscale. After choosing one, open it using whichever photo editor tool comes with the selected upscaling program and then adjust any settings according to what best suits your purposes before enlarging it as required by selecting “Upscale” from within the given application's menu bar or window toolbar options field dropdown selection box input category list items menu selections set list picker items section buttons menu item choices pull down menus tab menu elements form function option buttons switch tabs radio button fields list boxes checkboxes cyclic grouping labels rollover hints etc... If needed, you can also crop or resize parts of your picture through these same menus before proceeding with upsizing – but always remember: Less is more; don’t overdo any adjustments if unnecessary.

After adjusting parameters such as resolution size (or even going into deeper detail: noise reduction technique utilized), click start/apply once satisfied and let the upscaling take place automatically -- then patiently wait until completion. Et voilà. A couple seconds later; congratulations - You now have an upgraded version of your old photo/picture prepared for further utilization.