摘要:
The present invention relates to a device for the compression and/or decompression (260) of digital images (212) coded by means of a base layer (216 22 ), generated by a method of compression using a compression stepsize (QP), and by means of an enhancement layer (216 40 ), generated by coding the residual existing between the compressed image and the image coded by the base layer. According to the invention, the device is characterized in that it comprises means (278, 280, 282) for determining a compression stepsize (Q det ) relating to the image coded by the base layer (216 22 ) and by the enhancement layer (216 40 ), and means for instructing a filtering of this coded image as a function of this determined stepsize (Q det ).