Renders an image in a matplotlib figure, so it can be added to reports 
    args and kwargs are passed to plt.subplots

def makeFigFromFile(filename,*args,**kwargs):
    """
    Renders an image in a matplotlib figure, so it can be added to reports 
    args and kwargs are passed to plt.subplots
    """
    import matplotlib.pyplot as plt
    img = plt.imread(filename)
    fig,ax = plt.subplots(*args,**kwargs)
    ax.axis('off')
    ax.imshow(img)
    return fig