How to change the memory model of the Arduino?

Question

Arduino

Good people.
A little background:
I received the coveted LCD TFT 320x240 well and began to “blink”. After a while, having got used to the library and having learned to manage drawing quite smartly, I decided that it was time to code. Accordingly, the screen for output, and the device should be beautiful.
I quickly added a background in Photoshop to display it on a screen exactly the size of the LCD itself. Further more. I turn on the converter and encode the background jpg file into a .c file. I am attaching the file to the project. I hammer the match into an array. I send compile and download and here:
"array 'back' is too large"
No brainer that the array is too big, but no brainer why it suddenly. After some time of leisurely searching, I find out that AVR microcontrollers have the notorious "memory model" that should be changed to "small" in the settings and everything will supposedly be a bundle.
Searches for the location of this model were unsuccessful.
In this regard, the question is: how to change the memory model of the AVR microcontroller ATMega 2560?
Thanks in advance for your replies.

Answer 1

What is the size of the image in bytes (array size)? What is the amount of flash memory on arduino and what is the amount of RAM?

Answer 2

Weak Arduino for such a luxurious indicator!