Technologies are generally described for systems and methods effective to output a composite image. In some examples, a processor may be configured to receive first and second display data that relate to a first and second image. The processor may identify an overlap region where the first display overlaps the second display and generate imaging instructions effective to cause the first and second image to be output on the first display and second display, respectively. The processor may further modify the first imaging instructions based on the overlap region to produce a modified first imaging instruction. The processor may send the modified first imaging instruction to the first display so that the first image is output on the first display at a first resolution. The processor may send the second imaging instruction to the second display so that the second image is output on the second display at a second resolution.