def METHOD_NAME(tinterp, epsr, radgramImg):
    imgcmp = Image.open(radgramImg)
    plt.figure(figsize=(6, 7))
    plt.imshow(imgcmp, extent=[0, 150, 150, 0])
    x = np.arange(81) * 0.1
    xconvert = x * 150.0 / 8.0
    v = 1.0 / np.sqrt(mu_0 * epsilon_0 * epsr)
    nano = 1e9
    # tinterp = 30
    y = (1.0 / v * x) * nano + tinterp
    plt.plot(xconvert, y, lw=2)
    plt.xticks(
        np.arange(11) * 15, np.arange(11) * 0.8 + 2.4
    )  # +2.4 for offset correction
    plt.xlim(0.0, 150.0)
    plt.ylim(146.0, 0.0)
    plt.ylabel("Time (ns)")
    plt.xlabel("Offset (m)")
    plt.show()