I reviewed the uploaded file and identified the following potential issues:

1. **Missing Documentation for Functions**:
   - **Issue**: Functions lack documentation on their purpose, parameters, and return values.
   - **Evidence**: The `gaussian_noise` function, for example, lacks explanations of its purpose, inputs, and output.
   - **Description**: Proper documentation is crucial for code maintainability and understanding. Without it, other developers may struggle to use or modify the functions.

2. **Inconsistent Variable Naming**:
   - **Issue**: Variable naming conventions are inconsistent, leading to confusion and readability issues.
   - **Evidence**: Variables like `mapsize`, `maparray`, `wibble`, `stepsize` use varying naming conventions.
   - **Description**: Consistent and descriptive variable naming is essential for readability and understanding. Inconsistent naming can make the code difficult to follow.

3. **Lack of Modularity**:
   - **Issue**: The code implements multiple functionalities without clear separation, making maintenance and extension challenging.
   - **Evidence**: Functions for different types of corruption (e.g., `gaussian_noise`, `speckle_noise`) are not clearly organized.
   - **Description**: Modularizing code by separating functionalities into independent functions or classes improves readability, reusability, and maintainability.

Let me know if you need further analysis or additional issues identified.