Matlab logical matrix to C char type

So I have a Black/White only Graphic LCD that I want to feed images to. I choose Bitmap arrays as my image data storage type.

So I have managed to convert an image to 128x64 resolution and made it black and white (only logical 1 and 0) and my matrix looks like this:

I want to convert (automatically for multiple photos/video) these logical values to look like this:

Answer 1

[Steven Lord]

I can understand how you generate the 0x00 and 0xFF values from your logical data, but how do you generate the other values from false and true? What are the rules behind the conversion?

For mapping false to 0 and true to 0xFF:

r = rand(5) > 0.5

r = 5×5 logical array
   1   1   1   0   0
   0   1   1   1   1
   1   0   0   0   1
   0   0   1   1   0
   1   0   1   0   0

r2 = zeros(size(r), 'uint8');
r2(r) = intmax('uint8')

r2 = 5×5

255 255 255 0 0 0 255 255 255 255 255 0 0 0 255 0 0 255 255 0 255 0 255 0 0

[Mihnea Dumitriu]

0xFF just means "1111 1111" in binary.

I wish to convert first 8 bites into a hex value then next 8 and so on and format the output as in the second screenshot.

[Mihnea Dumitriu]

You see as I have 0x94 it means "1001 0100" which is the format I have for sending data to my GLCD, 8 bites that indicate if the X,Y position of a LCD pixel is ON = 1 or OFF = 0.