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# Eqlm
A CLI tool to manipulate images in various ways
## Installation
```sh
pip install eqlm
```
### With Clipboard Support
```sh
pip install eqlm[clipboard]
```
Note that clipboard support varies depending on your OS.
## Examples
### `$ eqlm eq images/macaron.jpg -n 3 2 -t 0.8 -c`
| Source | Result |
| ---------------------------------- | ---------------------------------------- |
|  |  |
### `$ eqlm eq images/mayuno.jpg -n 16 2 -t 0.7 -c -i makima`
| Source | Result |
| --------------------------------- | --------------------------------------- |
|  |  |
### `$ eqlm eq images/yaesu-wall.jpg -m lightness -t 0.9 -n 9 6`
| Source | Result |
| ------------------------------------- | ------------------------------------------- |
|  |  |
### `$ eqlm eq images/hakone.jpg -m saturation -t 0.2 --clamp`
| Source | Result |
| --------------------------------- | --------------------------------------- |
|  |  |
### `$ eqlm laps images/mayuno-eqlm.jpg -c 0.3`
| Source | Result |
| -------------------------------------- | --------------------------------------- |
|  |  |
### `$ eqlm desc images/halftone.png`
| Source | Result |
| ----------------------------------- | ----------------------------------------- |
|  |  |
## Commands
The main program can be invoked either through the `eqlm` command or through the Python main module option `python3 -m eqlm`.
Each operation is implemented as a subcommand shown below.
### Eq
Spatially equalize image lightness, saturation, or brightness
```txt
<?= shell_exec("python3 -m eqlm eq --help") ?>
```
### Match
Match histogram of source image to reference image
```txt
<?= shell_exec("python3 -m eqlm match --help") ?>
```
### Laps
Sharpen an image using a Laplacian variant kernel
```txt
<?= shell_exec("python3 -m eqlm laps --help") ?>
```
### Desc
Descreen a scanned image using a Fourier Transform-based method
```txt
<?= shell_exec("python3 -m eqlm desc --help") ?>
```
## License
GNU Affero General Public License v3.0 or later
Copyright (C) 2025 curegit
This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with this program.
If not, see <https://www.gnu.org/licenses/>.