Correction: Context-Aware Image Compression.

[This corrects the article DOI: 10.1371/journal.pone.0158201.].

Fig 1 appears incorrectly in the published article. Please see the correct Fig 1 and its caption here. The publisher apologizes for the error.

Fig 1

Overview schematic for image compression codec with warped stretch.

The input is split into two components: i) the downsampled warped image and ii) the metadata, which contains a compressed version of the warp kernel. These two components are jointly used for recovering the original input. Since the warp kernel is image-dependent, we must send it as part of the compressed file, which creates extra overhead relative to an image-independent compression technique, such as uniform sampling. However, if the metadata can be compressed extremely compactly, the overall compression ratio can still be significant.