$1\mathrm{.}3\mathrm{.}7$ Shuffle

Figure $5$: An image and its shuffled counterpart.

Shuffling works this way: Divide the image into $16$ equally sized image blocks and give each block a number $($from

$1$ to $16).$ Then pick a pair of image blocks and swap it's R$,$ G and B values. Here, we use pairs of image blocks as

follows: $(1,16),(2,15),(3,14),$ and so on$.$ Repeat choosing and swapping process until all image blocks are swapped.

You need to define and implement the following function to do this DIP.

$/*$ Shuffle an image $*/$

void Shuffle$($unsigned char R$[$WIDTH$][$HEIGHT$],$

unsigned char G$[$WIDTH$][$HEIGHT$],$

unsigned char B$[$WIDTH$][$HEIGHT$])$;

The shuffled image should look similar to the figure shown in Figure $5($b$)$:

Please enter your choice: $7$

"Shuffle" operation is done!Load a PPM image

Save an image in PPM and JPEG format

Change a color image to Black & White

Make a negative of an image

Color filter an image

Sketch the edge of an image

Shuffle an image

Flip an image vertically

Mirror an image horizontally

$10$: Add Border to an image

$11$: Test all functions

$12$: Exit

please make your choice:

Save the image with name 'shuffle' after this step.