There is provided is a transmitter including an image processor that sets region information corresponding to a region set for an image for each row in the image and that transmits the set region information and region data corresponding to the region for each row, in which the image processor sets the region by analyzing the image or on a basis of externally acquired region-designating information, and the region information includes information indicating a position of a row and information indicating a position of a column of the region included in the row.