Patent ID: 8977099
Filing Date: 2015-03-10
Classification: G06T,H04N

Abstract:
1. A production apparatus for producing a distribution content including distribution video data, the production apparatus comprising: an original video acquisition unit configured to acquire original video data; a distribution video acquisition unit configured to acquire the distribution video data, the distribution video data having been generated by conversion of the original video data to a lower gradation; a difference calculation unit configured to calculate a difference between primary color data in the original video data and primary color data in the distribution video data, the original video data and the distribution video data both including a plurality of frames, each frame including a plurality of pixels, each pixel including primary color data for each primary color, and the difference being calculated for each primary color of each pixel of a frame being processed; a shift amount generation unit configured to generate shift amount data including a shift amount for the frame being processed by determining the shift amount in accordance with a value of one or more most significant bits, other than a sign bit, in the difference calculated by the difference calculation unit; a reduction unit configured to generate difference data by reducing a bit length of the difference calculated by the difference calculation unit in accordance with the shift amount determined by the shift amount generation unit for the frame being processed; and an output unit configured to output the difference data and the shift amount data, wherein the difference data includes a plurality of frames, each frame including a plurality of pixels, each pixel including, for each primary color, the difference whose bit length is reduced by the reduction unit, the shift amount data includes a plurality of pairs of, in one-to-one correspondence, a frame number uniquely identifying a frame and the shift amount for the frame determined by the shift amount generation unit, and the output unit performs the output by writing the distribution content on a recording medium and writing the difference data and the shift amount data on the recording medium in association with the distribution content.