$1\mathrm{.}1$ Download the $x-$ray image

The image is for a Plexiglas material with

different thicknesses and $\{$:$d_4=2\mathrm{.}5(mm))$ as shown in

the figure below.

$1\mathrm{.}2$ Use a software platform, such as MATLAB for displaying, processing, and

analyzing the $x-$ray image.

$1\mathrm{.}3$ Calculate the attenuation coefficient of this material using the equation: $I=I_0{e}^{-x}.$