I need help i have to read a 2d texture put it into an array then put it on to cubes need help reading colours

[donnahs]

public GameObject redCube;
public GameObject blueCube;
public GameObject yellowCube;
public GameObject greenCube;

    public Texture2D importTexture;
    private Color[] pixels;

    // Use this for initialization
    void Start () {
    CreateWorld();
    

}

void CreateWorld() 
{

    pixels = importTexture.GetPixels(0, 0, importTexture.width, importTexture.height);
  

    for (int x = 0; x < importTexture.width; x++)
    {
        for (int z = 0; z < importTexture.height; z++)
        {
            Color color = pixels[(x * importTexture.width) + z];

            if (color == Color.red)
            {
                Instantiate(redCube, new Vector3(x * 2.0f, 0.0f, z * 2.0f), Quaternion.identity);
            }
            else if (color == Color.blue)
                Instantiate(blueCube, new Vector3(x * 2.0f, 0.0f, z * 2.0f), Quaternion.identity);
        }
    }
    
}

}

[macorig]

What exactly isn’t working for you?
Is it just getting the correct color from the pixel array?
This should work:

 Color color =  pixels[importTexture.width * z + x];

Hope this helps!