[Mp4-tech] H.264 noise?

[Gary Sullivan]

Yes, there is something called the Film Grain Characteristics SEI
message that is capable of doing that and also of characterizing much
more elaborate grain synthesis models.  This capability was added in
July 2004 in a backward compatible way (since it is just "hint bits"
that existing decoders are not required to interpret.
Best Regards,
Gary Sullivan
+> -----Original Message-----
+> From: mp4-tech-bounces lists.mpegif.org 
+> [mailto:mp4-tech-bounces lists.mpegif.org] On Behalf Of karthik
+> Sent: Monday, February 21, 2024 3:57 AM
+> To: mp4-tech lists.mpegif.org
+> Subject: [Mp4-tech] H.264 noise?
+> 
+> Does H.264 have any hint bits to specify that the decoder should add
+> random white noise within the stream itself? Adding a small amount of
+> noise as a post processing step greatly inhibits visible 
+> blockiness in
+> a wide variety of situations esspecially with badly gamma calibrated
+> monitors.
+> 
+> Thanks in advance
+> 
+> karthiks
+> _______________________________________________
+> NOTE: Please use clear subject lines for your posts. Include 
+> [audio, [video], [systems], [general] or another 
+> apppropriate identifier to indicate the type of question you have.
+> 
+> Note: Conduct on the mailing list is subject to the 
+> Antitrust guidelines found at 
+> http://www.mpegif.org/public/documents/vault/mp-out-30042-Ant
+> itrust.php
+>