Method and device for multi-drawing layer stacking

A multi-layer and overlay image technology, applied in the multimedia field, can solve problems such as unclear layers, achieve the effect of quickly adjusting transparency, realizing transparency, and avoiding unclear layers

Active Publication Date: 2010-06-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present invention provides a multi-layer overlay method and device thereof, which can quickly adjust the transparency of a video or image and solve the problem that layers may not be clear after image overlay

Method used

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  • Method and device for multi-drawing layer stacking
  • Method and device for multi-drawing layer stacking
  • Method and device for multi-drawing layer stacking

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] An embodiment of the present invention provides a multi-layer overlay method, which includes:

[0024] Obtain the data of the current layer and the data of the overlay layer;

[0025] Perform border processing on the obtained data that needs to be superimposed on the layer;

[0026] According to the set global pixel transparency value, the current layer and the border-processed layer to be superimposed are superimposed, and the superimposed image result is ...

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Abstract

The embodiment of the invention provides a method and device of stacking multi layer. The method of stacking multi layer comprises: obtaining the data of the current layer and the data of the layer needed to be stacked; executing frame processing to the obtained data of the layer needed to be stacked; executing stack processing to the current layer and the layer needed to be stacked executed by framing processing to obtain the stacked image result. The technical proposal provided by the embodiment of the invention is able to realize to rapidly adjust the video or transparency of the image andsolve the problem of unclarity of the layer after stacking.

Description

technical field [0001] The invention relates to the field of multimedia technology, in particular to a method and device for multi-layer overlay. Background technique [0002] At present, multi-layer overlay technology is widely used in a large number of video devices. There are also a large number of applications in digital broadcasting, handheld devices, video surveillance and other fields. The so-called multi-layer superposition is to mix and superimpose multiple videos or images, so that multiple videos or images can be seen in one screen without additional display devices. The existing multi-channel video or image mixing and overlaying technology mainly adopts a method of transparent overlay (that is, alpha overlay). [0003] The existing multi-channel video or image overlay scheme is a direct hybrid scheme: first, two channels of video or images at the same position are written into their corresponding buffer units through their corresponding input units, and then re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/265
Inventor 邓安刚罗传藻
Owner HUAWEI TECH CO LTD
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