New visualization function to just show a series of panels?

[jgostick]

This might be useful:

def show_panels(im, rc=[5, 5], axis=0):
    i, j = rc
    im = np.swapaxes(im, axis, 2)
    slices = np.linspace(0, im.shape[2], i*j, endpoint=False).astype(int)
    fig, ax = plt.subplots(i, j)
    s = 0
    for row in range(i):
        for col in range(j):
            ax[row][col].imshow(im[..., slices[s]])
            ax[row][col].set_title(f"Slice {slices[s]}")
            s += 1
    return fig, ax

fig, ax = show_panels(im, axis=0)
fig.set_size_inches(15, 15)
fig

[jgostick]

addedin PR #800