Image to 2D array

[y0XSE3v7]

A few months ago I wrote a simple neural network using back propagation algorithm. It's input is a 2D array of any given size and type. I tried to make it learn the logic functions like AND & OR it worked. So now I want to try image recognition and I need the image as a 2D array of RGB values.(I mean three arrays of course one 2D array for each color.)

How can I get an array of RGB from an image? Can I do it with streams?

[Gamer2015]

As for how you get the RGB values from an Image you could try this Generic Image Library from boost:
http://www.boost.org/doc/libs/1_41_0/libs/gil/doc/index.html

I haven't used it myself but taking a look at it won't hurt and it is boost we are talking about

And you just need 1 2D array

1. make a struct like that:

struct Color{
    unsigned char red;
    unsigned char green;
    unsigned char blue;
    unsigned char alpha; // transparency from png's
};

2. declare Array
Color pixels[ROWS][COLUMNS];