Methods and apparatuses for transmitting images captured by first and second image sensors are disclosed. In some embodiments, each image sensor generates a plurality of pixel values each represented by a plurality of data bits having a pixel bit length. In some embodiments, a method involves combining pixel values generated by each of the first and second image sensors into a single image data stream, transforming the single image data stream into a plurality of data words having a word bit length, and encoding the data by selection of one of a plurality of symbols having an encoded bit length that is at least one bit longer than the word bit length to reduce a running disparity. The method also involves serializing the symbols to generate and transmit a DC balanced serial bitstream. Methods for synchronizing a receiver for extracting image data from the serial bitstream are also disclosed.