METHOD, APPARATUS AND SET-TOP-BOX FOR REALIZING SEMITRANSPARENT EFFECT ON VIDEO LAYER FOR IMAGE LAYER

摘要

A method, apparatus and set-top-box for realizing semitransparent effect on the video layer for the image layer are provided. The method includes: acquiring a source data corresponding to every pixel point of the image to be displayed of the image layer; creating a matrix for the image to be displayed wherein the matrix includes a one to one correspondence position of the pixel points of the image to be displayed; partitioning the matrix into more than two subregions; filling the source data of corresponding pixel points in the preset positions of every subregion, and filling 0 in the other positions except for the preset positions; outputting the data of the filled matrix to the display memory for displaying.