So,

There are many services online that offer image conversion to a C/C++ byte array, but most limit you to the size of the LCD/OLED they have written it for.

Not to say that they are not valid, but there are times where one just want an arbitrary byte array from any type of image.

Yes there are command line tools like convert and imagemagick, but how about a web based tool, like a drag and drop

When we where working on Retro ESP32, which has many such byte array to image buffer for lcd, we set out and created our own.

We needed this

To be this

const uint16_t logo[18][128] = {
	{0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,0,0,0,0,0},
	{0,0,0,0,65535,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,0,0,0,0},
	{0,0,0,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,0,65535,0,0,0},
	{0,0,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535,0,0},
	{0,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535,0},
	{0,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,0,0,0,0,0,0,65535,65535,65535,0,0,0,0,0,65535,65535,0,0,0,0,0,0,65535,65535,65535,65535,0,0,0,0,0,65535,65535,65535,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535,0},
	{65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,0,0,65535,65535,65535,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,0,0,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,0,0,65535,0,0,65535,65535,65535,0,0,65535,65535,0,0,65535,65535,65535,0,0,65535,0,0,65535,65535,65535,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535},
	{65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,0,0,65535,65535,65535,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,0,0,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,0,0,65535,0,0,65535,65535,65535,0,0,65535,65535,0,0,65535,65535,65535,0,0,65535,0,0,65535,65535,65535,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535},
	{65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,0,0,65535,65535,65535,0,0,0,65535,65535,65535,65535,65535,0,0,0,65535,65535,65535,0,0,0,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,65535,65535,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,0,0,0,0,0,65535,65535,65535,65535,0,0,0,65535,65535,65535,65535,0,0,65535,65535,65535,0,0,65535,65535,65535,65535,65535,0,0,0,65535,65535,65535,65535,65535,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535},
	{65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,0,0,0,65535,65535,65535,0,65535,65535,65535,0,0,65535,65535,65535,0,0,0,65535,65535,65535,65535,0,0,0,65535,65535,65535,0,65535,65535,65535,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,0,0,65535,65535,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,0,0,65535,65535,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535},
	{65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,0,0,65535,65535,65535,0,0,65535,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,65535,0,0,65535,65535,65535,0,0,0,0,65535,65535,65535,0,0,65535,65535,65535,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,0,0,65535,0,0,65535,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,0,0,65535,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535},
	{65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,0,0,65535,65535,65535,0,0,65535,65535,65535,0,0,0,0,0,0,65535,65535,65535,0,0,0,65535,65535,65535,0,0,0,0,65535,65535,65535,0,65535,65535,65535,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,0,0,65535,0,0,65535,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,0,0,65535,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535},
	{0,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,0,0,65535,65535,65535,0,0,0,65535,65535,65535,65535,65535,65535,0,0,65535,65535,65535,0,0,0,65535,65535,65535,0,0,0,0,0,65535,65535,65535,65535,65535,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,0,0,0,0,0,0,65535,65535,65535,0,0,0,0,0,65535,65535,0,0,65535,65535,65535,65535,65535,65535,65535,65535,0,0,0,0,0,65535,65535,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535,0},
	{0,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535,0},
	{0,0,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,65535,0,0},
	{0,0,0,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,0,65535,0,0,0},
	{0,0,0,0,65535,65535,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,65535,65535,0,0,0,0},
	{0,0,0,0,0,0,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,65535,0,0,0,0,0,0},
};

Simple enough right?

It wasn't before, but now it is
Check out our Online Image to UINT16_T Conversion For C/C++ and try it out for yourself!