Please refer to the assignment_4_poisson in the git repository:

https://gitlab.fel.cvut.cz/dzo/dzo-python-assignment-templates

and to intro for additional material for NumPy, git, and similar.

Please implement all required functions (calc_grad, calc_div, get_mask, merge_grads, merge_images, solve_FT and solve_GS) and submit your solution to the upload system as a ZIP file containing the file poisson.py and poisson.ipynb. Do not include any directory structure (when the ZIP is uncompressed, the files will extract to the current working directory, as opposed to any subdirectories.)