Like Piarduano, BitmapToC is a simple Mac OS X app to speed up some Arduino projects.
It converts .bmp images to C arrays you can use for, for example the TVout libary and LCD’s. Similar tools are already available for Windows, but not for Mac. So I wrote one myself.

BitmapToC is available for download on GitHub under the ‘Releases’ tab.

How to use

Download the latest release and open the app. Drag and drop a .bmp file to the earea to select the image. Select how many bits (pixels) every array element should contain, and hit ‘convert’.