A method, comprising: receiving a first input 3D image in a sequence of input 3D images, the first input 3D image having a first input image frame for a first perspective and a second input image frame for a second different perspective; selecting, based on one or more deciding factors, from a plurality of different types of data compositions, a first specific type of data composition to be used to transmit first enhancement layer image data in an enhancement layer; deriving image data in a plurality of color channels of an adopted color space using one or both of the first input image frame and the second input image frame; and encoding and outputting the image data in the plurality of color channels as the first EL image data in the first specific type of data composition; selecting, based on one or more deciding factors, from the plurality of different types of data compositions, a second specific type of data composition to be used to transmit second EL image data in the enhancement layer; wherein the second specific type of data composition differs from the first specific type of data composition; wherein encoding and outputting of image data as second EL image data in the second specific type of data composition transitions gradually from encoding and outputting of image data as first EL image data in the first specific type of data composition over a plurality of input 3D images from the sequence of input 3D images, wherein said deciding factors include any of {audio and video signal characteristics; respective bandwidth requirements of different types of data compositions; a bandwidth constraint on a current network connection between an upstream device and a recipient device, a maximal, average, or minimal bitrate supported by a current network connection; a quality of service measure of a current network connection}. receiving a first input 3D image in a sequence of input 3D images, the first input 3D image having a first input image frame for a first perspective and a second input image frame for a second different perspective; selecting, based on one or more deciding factors, from a plurality of different types of data compositions, a first specific type of data composition to be used to transmit first enhancement layer image data in an enhancement layer; deriving image data in a plurality of color channels of an adopted color space using one or both of the first input image frame and the second input image frame; and encoding and outputting the image data in the plurality of color channels as the first EL image data in the first specific type of data composition; selecting, based on one or more deciding factors, from the plurality of different types of data compositions, a second specific type of data composition to be used to transmit second EL image data in the enhancement layer; wherein the second specific type of data composition differs from the first specific type of data composition; wherein encoding and outputting of image data as second EL image data in the second specific type of data composition transitions gradually from encoding and outputting of image data as first EL image data in the first specific type of data composition over a plurality of input 3D images from the sequence of input 3D images, wherein said deciding factors include any of {audio and video signal characteristics; respective bandwidth requirements of different types of data compositions; a bandwidth constraint on a current network connection between an upstream device and a recipient device, a maximal, average, or minimal bitrate supported by a current network connection; a quality of service measure of a current network connection}.