Write a Matlab code that can read an image, display it$,$ increase its brightness, display the result in a different window and then save the result.?

$(1$ pt$.)$

Write a Matlab code that reads an RGB image, displays this colored image and then displays $4$ graylevel image versions in different windows $(2$ pts$.).$ Convert the image to an indexed image and display it with different color maps $(1\mathrm{.}5$ pts$.).$ Convert the image to different data types and display in different windows $(0\mathrm{.}5$ pt$.).$