# HyperForensics++ Dataset Contribution Guide

This guide outlines the steps to contribute to the HyperForensics++ dataset repository.

---

## 1. Clone the Repository
First, clone the repository from Hugging Face to your local machine:
```bash
# Make sure git-lfs is installed (https://git-lfs.com)
git lfs install
git clone https://huggingface.co/datasets/OtoroLin/HyperForensics-plus-plus
```
## 2. Extract the Dataset
Unzip the data.tar.gz file into a separate local directory:
```bash
[to be filled]
```
## 3. Modify or Generate Data
Make changes or generate new data in the extracted directory. Ensure the data follows the required structure:
```
local_data/
    |-{attacking method}/
    |   |-config0/
    |   |   |-images.npy
    |   |-config1/
    |   | ...
    |   |-config4/
    |-{attacking method}/
    |   |-config{0-4}/
    |-Origin
    |   |-images.npy
HyperForensics-plus-plus/
    |-data/
```
## 4. Zip the Directory
After modifying or generating data, zip the directory into a `.tar.gz` file and place it in the repository.

You can utilize the provided `zipping.sh` script. First, modify the `ROOT_DIR` variable to the `local_data` path
```bash
# In zipping.sh
# Defined the root directory of the whole dataset
ROOT_DIR="/root/to/local_data"
```
### 4.1 Compressing specify the method and configuration:
```bash
./zipping.sh --method <method name> --config <config name>
```
Replace <method name> with the forgery method and <config name> with the configuration index. This will automatically put the compressed `.tar.gz` file under hirarchy of the dataset repo.
For instance, if I want to zip the images under `ADMM-ADAM` forgery method, `config0` configuration:
```bash
./zipping.sh --method ADMM-ADAM --config 0
```
This will compress `/path/to/local/ADMM-ADAM/config0/*` to `HyperForensics-plus-plus/data/ADMM-ADAM/config0/config0.tar.gz`.
### 4.2 Compressing the specify direcotry
```bash
./zipping.sh --dir-path <path/to/directory>
```
Replace `<path/to/directory>` with the intended directory path. This will compress the directory and put it in the working directory.
For instance,
```bash
./zipping.sh --dir-path /path/to/local/ADMM-ADAM/config0
```
This will compress `/path/to/local/ADMM-ADAM/config0/*` to `HyperForensics-plus-plus/config0.tar.gz`.
### 4.3 Compress the entire hirarchy
```bash
./zipping.sh --all
```
This will compress the entire local data hirarchy seperately and automatically put the compressed files under hirarchy of the dataset repo.
## 5. Create a Pull Request
Push your changes to create a pull request. Hugging Face uses `git push` to implement pull requests:
```bash
git push origin pr/<pr index>:refs/pr/<pr index>
```
Replace `<pr index>` with the pull request index.
## 6. Wait for merging the Pull Request
Once the pull request is created, the repository maintainer will review and merge it.
---
Thank you for contributing to the HyperForensics++ dataset!