lenna-core

Lenna is a library for image processing algorithms and apps.

This is the core library for lenna.

Lenna CLI

quickstart

sh cargo build

run tests

sh cargo test cargo test --features=python wasm-pack test --node

Build

create plugins

```rust use image::DynamicImage; use lennacore::core::processor::Processor; use lennacore::plugins::PluginRegistrar; use lennacore::ImageProcessor; use lennacore::ExifProcessor; use lenna_core::ProcessorConfig;

lennacore::exportplugin!(register);

extern "C" fn register(registrar: &mut dyn PluginRegistrar) { registrar.add_plugin(Box::new(Plugin{ config: Config::default() })); }

[derive(Default, Clone, serde::Serialize, serde::Deserialize)]

struct Config { }

[derive(Clone)]

pub struct Plugin { config: Config }; impl Processor for Plugin { fn name(&self) -> String { "plugin".into() }

fn title(&self) -> String {
    "Plugin".into()
}

fn author(&self) -> String {
    "chriamue".into()
}

fn description(&self) -> String {
    "Plugin description.".into()
}

fn process(
    &mut self,
    config: ProcessorConfig,
    image: &mut Box<lenna_core::LennaImage>,
) -> Result<(), Box<dyn std::error::Error>> {
    self.config = serde_json::from_value(config.config).unwrap();
    self.process_exif(&mut image.exif).unwrap();
    self.process_image(&mut image.image).unwrap();
    Ok(())
}

fn default_config(&self) -> serde_json::Value {
    serde_json::to_value(Config::default()).unwrap()
}

} impl ImageProcessor for Plugin { fn processimage( &self, image: &mut Box, ) -> Result<(), Box> { let img = DynamicImage::ImageRgba8(image.torgba8()); *image = Box::new(img); Ok(()) } } impl ExifProcessor for Plugin {} ```

🐍 build python bindings

Create a virtual environment for python and install lenna-core using pip.

bash virtualenv -p python3 .venv source .venv/bin/activate pip install . python src/plugins/python/test.py

python import lenna_core_py print(lenna_core_py.Resize.description())

🌏 Language Support

| Rust | JavaScript | Python | C++ | WASM | | :---------: | :---------: | :---------: | :---------: | :---------: | | Yes | Yes | Yes | No | Yes |