Add Pre-processing method

To add a pre-processing method follow these steps:

1. Fork the dataset, pull the latest changes and create a new branch add-preprocess-{method_name}

2. In the framework/dataloader/preprocess/methods.py implement a function that performs the pre-processing method.

3. In the same file, add the pre-processing method to the dictionary method2fun, method_name: method_function.

   • The key must be the pre-process method name. This name will be used by the framework to call the function.

   • The value is the function itself.

   • Example:

    method2fun = {
        # .....
        # method_name: method_function
        'binarize': binarize,
    }
   

4. Make a Pull Request on Github.