公开(公告)号：US20220159226A1

公开(公告)日：2022-05-19

申请号：US17179440

申请日：2021-02-19

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： HUNG-MING WANG ,  YUAN-PO CHENG

IPC: H04N9/76 ,  H04N19/44 ,  H04N9/64

Abstract: A device and method for blending image data and the alpha channel and reconstructing to obtain the image again after transmission. An encoder blends the alpha channel and the red-green-blue (RGB) image data through a layer blending method that is supported by the general application processor (AP). Transporter image data, such as a checkerboard pattern, is blended with 1-alpha channel data to obtain a transporter. The blended image data (RGB+alpha) is mixed with the transporter to obtain mixed image data. The mixed image data is then transmitted through the existing transmission interface. After receiving the mixed image data, reconstruction processing is performed by a decoder to obtain the original RGB image data and the alpha channel again.