1. A method for multi-energy inspection of an object using a brilliant x-ray source, the method comprising: processing a first mono-energetic x-ray image of an object at a first selected energy and second mono-energetic x-ray image of the object at a second selected energy, wherein the first selected energy and the second selected energy are selected from a number of energy levels; combining the first mono-energetic x-ray image and the second mono-energetic x-ray image to form a result; presenting the result, wherein the result comprises processed mono-energetic x-ray image data describing materials in the object; identifying an amount of a material in the object based on the processed mono-energetic x-ray image data; and identifying an attenuation coefficient of a material in the object based on the processed mono-energetic x-ray image data.