E: extract_bit_plane: 4.21236300468445
 TIME: create_hidden: 0.25209
 Write PNG file hidden-array-200x265.png
 TIME: write_png(): 0.029869
        hidden-array-200x265.png:  Type byte (0) Dims 2 (200/265) #Ele 53000 Sum  6348672
 TIME: main(): 4.524511
 </code></pre>

<h2 id="A.-Execution-Time-of-PDL-Solution">A. Execution Time of PDL Solution:</h2>

<pre><code> ./ch-1.pl pdl
 ch-1.pl (Version 1.0) PWC #34 Task #1: Argument - pdl
 TIME: read_png(): 0.028898
 TIME: read_image: 0.0289709568023682
 TIME: bit_p