mat lab

Oricinal nenners imace

Grevscala nenners imarie

Selected region

Reduced contrast

Increased brightness

Gaussian blur

Create a function J $=$ luminance$\_$change$($I$,$ option, value$)$ such that:

$\%*$ When given the option $\text{'}$c$\text{'},$ the contrast of image I$\text{'}$s top$-$left and

$\%$ bottom$-$right quadrants will be modified by the given value.

$\%$ Simple multiplication will achieve this.

$\%*$ When given the option $\text{'}$b$\text{'},$ the brightness of image I$\text{'}$s top$-$right and

$\%$ bottom$-$left quadrants will be modified by the given value.wcase your function by filling positions $4$ and $5$ in the grid

$\%$ Contrast change

pause$()$;

$\%$ Brightness change

pause$()$;

Gaussian filter. Hint: imgaussfilt$()$