### Installing tsemrtd Library

Source: https://github.com/li0ard/tsemrtd/blob/main/README.md

This snippet provides instructions for installing the tsemrtd library using two popular package managers: npm for Node.js environments and jsr for Bun environments. It shows the commands required to add the library to a project.

```bash
# from NPM
npm i @li0ard/tsemrtd

# from JSR
bunx jsr add @li0ard/tsemrtd
```

--------------------------------

### Loading and Displaying MRZ Data with tsemrtd in TypeScript

Source: https://github.com/li0ard/tsemrtd/blob/main/README.md

This TypeScript snippet demonstrates how to load and parse DG1 (MRZ information) from a binary file using the tsemrtd library. It reads the file bytes, converts them to a Buffer, loads the DG1 data, and then prints the extracted MRZ string to the console. It requires a Bun runtime environment.

```typescript
import { DG1 } from "@li0ard/tsemrtd"

let file = await Bun.file("EF_DG1.bin").bytes()
let data = DG1.load(Buffer.from(file))
console.log(data)
// P<D<<MUSTERMANN<<ERIKA<<<<<<<<<<<<<<<<<<<<<<
// C11T002JM4D<<9608122F1310317<<<<<<<<<<<<<<<6
```

--------------------------------

### Extracting and Saving Face Image from DG2 with tsemrtd in TypeScript

Source: https://github.com/li0ard/tsemrtd/blob/main/README.md

This TypeScript snippet illustrates how to extract a face image from a DG2 (Face image) binary file using the tsemrtd library. It reads the file, loads the DG2 data, and then saves the extracted image data (e.g., JP2 format) to a new file. This operation requires a Bun runtime environment.

```typescript
import { DG2 } from "@li0ard/tsemrtd"

let file = await Bun.file("EF_DG2.bin").bytes()
let data = DG2.load(Buffer.from(file))

await Bun.write("image.jp2",data[0].imageData)
```

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