Image composing method and device

An image synthesis and original image technology, applied in the field of information fusion, can solve problems such as the inability to obtain high depth of field images quickly and effectively, and achieve the effect of reducing the amount of calculation and expanding the depth of field.

Active Publication Date: 2007-08-22
VIMICRO ELECTRONICS CORP
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  • Abstract
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  • Claims
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Problems solved by technology

[0008] In view of this, the present invention provides an image synthesis method and device to solve the problem in the prior art that a high depth-of-field image with clear pixels can not be obtained quickly and effectively

Method used

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Embodiment Construction

[0057] The image synthesis method provided by the present invention first obtains the brightness information of each pixel of each original image in multiple original images; then extracts the high-frequency component from the brightness information of the pixel; according to the high-frequency component of each pixel, Determine the value of the pixel at the corresponding location in the composite image.

[0058] The method of the present invention is applicable to all monochrome images and color images, and for monochrome images, the value of a pixel point refers to the gray value of a pixel point in a monochrome image; The Red Green Blue (RGB) value of the point. The implementation steps of the method provided by the present invention will be described in detail below by taking a color image of size m*n as an example, where m and n are both positive integers.

[0059] Please refer to Fig. 1, it is the flowchart of image synthesis among the present invention, and concrete im...

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Abstract

This invention discloses an image composing method and a device, in which, the method includes: A, obtaining the brightness information of each pixel point in each original image, B, picking up the HF component of related pixel points from the information, C, determining values of pixel points of the corresponding positions in the composed image, besides, LF components of related pixel points can be got at the same time picking up HF components in step B and LF components of related position pixel points in the composed image can be got according to the LF component of each point in the original image.

Description

technical field [0001] The invention relates to the field of information fusion, in particular to an image synthesis method and device. Background technique [0002] In recent years, image acquisition devices such as digital cameras, digital video cameras, and video cameras have been rapidly popularized, and required images can be obtained through these image acquisition devices. However, due to the depth of field of the image acquisition device, the acquired image will not be completely clear. Objects can only be clearly imaged on the imaging surface within a limited distance before and after the focus point of the image acquisition device. This distance that can form a clear image is the depth of field. Due to the small depth of field of the existing image acquisition equipment, it can only accurately focus on a distance in the scene, resulting in a clear image only at the focus position. For example, when focusing on the foreground, the obtained image has a clear foregro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/50H04N5/243H04N5/14
Inventor 沈操
Owner VIMICRO ELECTRONICS CORP
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