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gowall

(★ 2,300)

A tool to convert a Wallpaper's color scheme / palette, OCR with VLM's Traditional & Hybrid, Image Compression ,color palette extraction, image upsacling with Adversarial Networks and more image processing features.

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Download Latest Version (.zip)

- - bug_report.yml
  - feature_request.yml
- - release.yml
- catppuccin.png
- custom.png
- everforest.png
- go-sticker-overlay-small.png
- invert.png
- preview.png
- bg.go
- color.go
- compress.go
- convert.go
- draw.go
- effects.go
- extract.go
- gif.go
- invert.go
- list.go
- ocr.go
- pixelate.go
- resize.go
- root.go
- stack.go
- upscale.go
- config.go
- constants.go
- create_dirs.go
- env.go
- - wallpaper.go
- - compression.go
  - convert.go
  - draw.go
  - effects.go
  - extract.go
  - gif.go
  - gradient.go
  - image.go
  - invert.go
  - pixelate.go
  - removeBg.go
  - replace.go
  - resize.go
  - stack.go
  - themes.go
  - upscale.go
- - conversions.go
  - image_io.go
  - load.go
  - save.go
- - logger.go
- - pdf.go
- - batch.go
  - docling.go
  - docling_client.go
  - gemini.go
  - mistral.go
  - ollama.go
  - openai.go
  - options.go
  - pipeline.go
  - progress.go
  - prompt.go
  - provider.go
  - rate_limiter.go
  - stages.go
  - tesseract.go
  - types.go
- - image.go
- - setup.go
- checks.go
- terminal.go
- checks.go
- constants.go
- error.go
- filesystem.go
- spinner.go
- url.go
.gitignore
go.mod
go.sum
LICENSE
main.go
README.md

// repository documentation

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###### *<div align = right><sub>Design By Achno</sub></div>*
<div align = center><img src="assets/go-sticker-overlay-small.png"><br><br>

&ensp;[<kbd> <br> Overview <br> </kbd>](#overview-framed_picture)&ensp;
&ensp;[<kbd> <br> Installation <br> </kbd>](#installation-package)&ensp;
&ensp;[<kbd> <br> Contributions <br> </kbd>](#contributions-handshake)&ensp;
<br><br><br><br></div>

---

# Overview :framed_picture:

Gowall started as a tool to convert an image ( specifically a wallpaper ) to any color-scheme / palette you like!
It has now evolved to a swiss army knife of image prosessing offering (OCR,Image upsacling,image compression and a lot more)

## Docs
Gowall is really well documented with **visual examples**: [Gowall Docs](https://achno.github.io/gowall-docs/)

---

## Features

❗ Although Gowall is a CLI tool, it has an `Image preview` feature that allows
printing images directly in the terminal. See [Gowall Terminal Image preview](https://achno.github.io/gowall-docs/#image-preview)

- **Convert Wallpaper's theme**  – Recolor an image to match your favorite + (Custom) themes (Catppuccin...).
- **Image compression** - Reduce the size of png,jpeg,jpg,webp images.
- **OCR** - Extract text from images and pdfs', supporting 9+ providers (Traditional OCR, Visual Language Models and hybrid methods).
- **AI Image Upscaling** - Increase the resolution of the image while preserving or improving its quality.
- **Convert Icon's theme**  (svg,ico) - Recolor your icons to match a theme.
- Support for Unix pipes/redirection  - Read from stdin and write to stdout.
- Image to pixel art - Transforms your image to the typical blocky appearance of pixel art.
- Replace a specific color in an image - Pretty self explanatory.
- Create a gif from images - Use the images as frames and specify a delay and the number of loops.
- Extract color palette - Extracts all the dominant colors in an image (like pywal).
- Change Image format - Ex. change format from .webp to .png.
- Invert image colors - Pretty self explanatory.
- Draw on the Image - Draw borders,grids on the image
- Remove the background of the image - Pretty self explanatory.
- Effects - Mirror,Flip,Grayscale,change brightness and more to come!
- Daily wallpapers - Explore community-voted wallpapers that reset daily.

---

<div  align="center"><img height="350" src="assets/custom.png"><br><br></div>

<div align="center" ><img height="450" src="https://github.com/user-attachments/assets/4029e2b7-b8fd-4738-9334-20a6d01872c7"><br><br></div>

<div align="center"><img height="450" src="https://github.com/user-attachments/assets/7b6ad413-938f-4f01-bda7-1f50f2f64616"><br><br></div>

<div align="center"><img height="500" src="https://github.com/user-attachments/assets/4bf6dc47-46eb-4bc4-9913-8dea3b454b80"><br><br></div>

<div align="center"><img src="assets/invert.png"><br><br></div>

---

# Themes :art:

You can check the section [here](https://achno.github.io/gowall-docs/themes) on how to create a **Custom Theme**.

The currently supported themes are featured below, if your favourite theme is missing open an issue or a pull request
All themes can be shown (both default and user-created via `~/.config/gowall/config.yml`) by `gowall list`.

- **Catppuccin flavors**
- **Dracula**
- **Everforest**
- **Gruvbox**
- **Nord**
- **Onedark**
- **Solarized**
- **Tokyo-dark/storm/moon**

<details>
  <summary><strong>Click to see more themes</strong></summary>
  <ul>
    <li><strong>Arc Dark</strong></li>
    <li><strong>Atom Dark</strong></li>
    <li><strong>Atom One Light</strong></li>
    <li><strong>Cat Frappe/latte</strong></li>
    <li><strong>Cyberpunk</strong></li>
    <li><strong>Github Light (black & white)</strong></li>
    <li><strong>Kanagawa</strong></li>
    <li><strong>Material</strong></li>
    <li><strong>Melange (Dark & Light)</strong></li>
    <li><strong>Night Owl</strong></li>
    <li><strong>Oceanic Next</strong></li>
    <li><strong>Rose Pine</strong></li>
    <li><strong>Shades of Purple</strong></li>
    <li><strong>Sunset Aurant</strong></li>
    <li><strong>Sunset Saffron</strong></li>
    <li><strong>Sunset Tangerine</strong></li>
    <li><strong>Sweet</strong></li>
    <li><strong>Synthwave 84</strong></li>
  </ul>
</details>

<br>

---

# Installation :package:

Make sure to do `gowall -v` and compare it against the release page version,
since the [docs](https://achno.github.io/gowall-docs/installation) only show the commands/flags and capabilities of the latest released version.

### Grab the binary from the release section (Stable Release) 🢀 **Prefered Method**

- If the installation options do not cover your package manager of your distro/OS
- If gowall in your package manager is not up to date as per the [release section's latest version](https://github.com/Achno/gowall/releases)
- If you don't know how to install gowall and don't want to build the project.

Head over to the [release](https://github.com/Achno/gowall/releases) section

Choose the latest version of gowall. You should see a `.tar.gz` for your operating system and architecture. Simply Extract the binary inside named `gowall` and place it inside your `$PATH`

```sh
sudo cp gowall /usr/local/bin/
```

### MacOS (Homebrew) - currently on v0.2.0

```sh
brew install gowall
```

Thank you to `chenrui333`. You can find the [ruby formula](https://github.com/Homebrew/homebrew-core/blob/b86ea8e19ae7bf087fab8e2d56cd623eec1e1cf9/Formula/g/gowall.rb) there.

### Arch linux - AUR

```sh
yay -S gowall
```
### Fedora - COPR

```sh
sudo dnf copr enable achno/gowall
sudo dnf install gowall
```

### NixOS - ( Maintainer : [Emily Trau](https://github.com/emilytrau))

```yaml
  environment.systemPackages = [
    pkgs.gowall
  ];
```

More installation options : [here](https://search.nixos.org/packages?channel=24.05&from=0&size=50&sort=relevance&type=packages&query=gowall)

### Void Linux - ( Maintainer : [elbachir-one](https://github.com/elbachir-one/))

```sh
sudo xbps-install -S gowall
```

### Build from source (Cutting Edge)

If you are a normal user, consider using using the method above for a stable gowall release.

> If you want to contribute to the project
> 
> Or have all the latest features that have not been released yet then

🔨 Clone the repo, build the project and move it inside your `$PATH`

```sh
git clone https://github.com/Achno/gowall
cd gowall
go build
sudo cp gowall /usr/local/bin/
gowall
```

If this threw any errors while building simply follow the solution below.

#### Windows (Or any OS if git cloning and go build did not work)

For Windows we need to install `zig` & `go` to build it. I advise you to use a package manager like [scoop](https://scoop.sh/) to install it. Obviously you can just go the zig website and download the installer, it doesn't really matter, the zig binary needs to be in your `$PATH`.

```bash
scoop install main/zig # or just go to the website and download zig if you don't want to use a package manager
```

```bash
git clone https://github.com/Achno/gowall
cd gowall

export CGO_ENABLED=1 # if you are using powershell : $env:CGO_ENABLED=1
export CC="zig cc" # if you are using powershell : $env:CC="zig cc"
export CXX="zig c++" # if you are using powershell : $env:CXX="zig c++"

go clean -cache 
go build -v

# then simply add the binary to your PATH
```

---

# Contributions :handshake:

If you wish to contribute by adding a new theme please open an `issue`
I would also be very happy if you can provide the `rgb values` of your theme as well :) but not required if it's popular

Feel free to suggest any cool features that would improve gowall even further by opening an `issue`

# Community

##  Community Extensions

The following are **third-party projects** built by the community that extend or integrate with `gowall`.

>[!Warning]
>These tools are **not officially affiliated with the `gowall` project**. Please audit/inspects scripts before running them.

### 🔗 Projects

- [**tinted-gowall**](https://github.com/tinted-theming/tinted-gowall) — A bridge between `gowall` and the [tinted-theming](https://github.com/tinted-theming) ecosystem. This project enables users to apply their `base16`/`base24` themes with `gowall`, unlocking hundreds of new visual styles.

# Special Thanks

Special thanks to [lutgen](https://github.com/ozwaldorf/lutgen-rs) for the original implementation of the color correction algorithm which i adapted for this project.