Image conversion device and image decoding device

TLDR: In this paper, an image conversion device for dividing an image into blocks of a prescribed size and converting an encoded picture including a slice that includes an integral number of rectangular areas into which the blocks are combined into one or more block lines.

Abstract: The present invention provides an image conversion device for dividing an image into blocks of a prescribed size and converting an encoded picture including a slice that includes an integral number of rectangular areas into which the blocks are combined into one or more block lines. If a slice boundary and a rectangular area boundary are the same when determining whether the encoded picture is to apply a loop filter, the device converts the encoded picture so as to reconstruct the relationship of the slice and the rectangular area included in the encoded picture, and if the slice boundary and the rectangular area boundary are not the same when determining whether the encoded picture is to apply a loop filter, the device converts the encoded picture so as not to change the relationship of the slice and the rectangular area included in the encoded picture.