Frequently Asked Question
What are Multilayers?
Multilayer codestream means, that the JPEG2000 output stream contains several layers of which each layer contains data compressed at a different compression ratio. The number of layers can be programmed with the ADV202/212.
On the decoding side it is then possible to extract a particular layer only.
The data has to be encoded in Multilayer mode. To do this, the JPEG2000 parameter RCTYPE is set to Multi-layered Target Size or Multi-layered Target Quality. The number of layers is then set with the RCTYPE value. The amount of compression for each layer is set with the LTARGET parameter.
Refer to the Programming Guide for more information.
Multi-layered compression is implemented with the ADV202-PCI HD card. Refer to the Alberio User Guide for more information: