Paste an image into a matlab plot to (x,y) coordinates

addfigure_xy.py

# coding=utf-8
"""
This function adds a figure to (x,y) position to a plot.
Autor: Pablo Pizarro @ppizarror.com, 2017.
"""

# Library importation
import matplotlib.pyplot as plt
from matplotlib.offsetbox import (OffsetImage, AnnotationBbox)
from matplotlib.cbook import get_sample_data


def addfigure_xy(x, y, ax, file_dir, zoom=1.0, imgformat='png'):
    """
    Add a figure (from file direction) to a [x, y] position to a plot (stored in ax)
    :param x: Coordenate x to append file
    :param y: Coordenate y to append file
    :param ax: Matlab plot object to append file
    :param file_dir: Direction to file
    :param zoom: Image zoom
    :param imgformat: Format of the image
    :return:
    """

    # Load image
    fn = get_sample_data(file_dir, asfileobj=False)
    arr_img = plt.imread(fn, format=imgformat)
    imagebox = OffsetImage(arr_img, zoom=zoom)
    imagebox.image.axes = ax

    # Create Annotation box
    ab = AnnotationBbox(imagebox, [x, y], frameon=False)
    ax.add_artist(ab)