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Method and apparatus for presenting an overlay image

A technology covering images and basic images, applied in the field of image processing, can solve problems such as waste

Inactive Publication Date: 2011-12-07
DSP GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resulting process wastes resources such as the bandwidth used to acquire the image, and the processing power used to blend the two images, where the blend does not change a substantial portion of the base image

Method used

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  • Method and apparatus for presenting an overlay image
  • Method and apparatus for presenting an overlay image
  • Method and apparatus for presenting an overlay image

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Embodiment Construction

[0012] The present application relates to a method and device for effectively storing, acquiring and processing overlay images on a numerically controlled display device. According to the present application, an overlay image containing a negligible area, ie a transparent area through which the base image is visible, is stored and processed so that this area can be ignored or partially displayed. Therefore, the negligible region contains pixels that can be ignored by the stored image, these pixels are not fetched from the data storage into the memory, and have not been processed or combined with the base image, thus saving storage space, fetching time As well as bandwidth and processing power, and enable other processing to be performed more efficiently.

[0013] Therefore, when a conventional display controller reads the entire contents of the overlay image and the base image to create a combined image, most of the original image is not overwritten and resources are thus wast...

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Abstract

A method and system for displaying an overlay image over a base image on a digitally controlled display device. If the overlay image includes an area used only to display the values ​​of the base image therein, the area or part of the area is shown, and the pixels of the overlay image within the area are not taken from a The image source is also not mixed with the corresponding values ​​of the pixels of the base area. Therefore, multiple fetch and blend operations can be saved, which can provide better resource utilization for the system and save bandwidth and processing power.

Description

technical field [0001] The present application relates generally to image processing, and more particularly to a method and system for displaying an overlay image. Background technique [0002] Most computerized devices and platforms for presenting graphics typically must display a base image, and another image on top of the base image, where the base image is only partially hidden or blended with an overlay image. Examples include overlay images for the purpose of adding information to a base image, such as the desktop of a Windows-based computer, which displays a background image over which an overlay image including icons and transparent areas are displayed, Or a mobile device that displays a background image and a pointer that includes a plurality of transparent areas surrounding the relevant portion of the displayed base image. Further examples include applications such as presenting a base image and an overlay image that provides a decorative frame to hide border regi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/32
CPCG09G5/377H04N1/387H04N5/262
Inventor 尤瓦尔·伊特金
Owner DSP GROUP