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Image synthetizing method and image processing device

An image processing device and image synthesis technology, applied in the field of image processing, can solve the problems of "false", unnatural, unsatisfactory picture effects, etc., and achieve the effect of real and natural picture effects and small brightness difference

Inactive Publication Date: 2010-10-06
HUAWEI TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, the image synthesis technology automatically completed by the equipment, because the synthesized image is only a simple superposition of the foreground picture and the background picture, because the foreground picture and the background picture come from different shooting scenes, the foreground of the superimposed picture There is a large difference in brightness between the part and the background part, which looks very unnatural, making the synthesized picture effect very "false", which cannot meet the needs of users

Method used

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  • Image synthetizing method and image processing device
  • Image synthetizing method and image processing device
  • Image synthetizing method and image processing device

Examples

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Embodiment 1

[0025] Embodiment 1, an image synthesis method, the process is as follows figure 1 shown, including:

[0026] A1, acquiring at least two images to be synthesized;

[0027] The image to be synthesized in the embodiment of the present invention can be an image collected in real time by a video acquisition device (such as a camera, a digital video camera, etc.), or it can be an existing image in a memory selected by the user, and the specific image source does not constitute Limitations on the Invention.

[0028] A2, unify the brightness of at least two images to be synthesized;

[0029] The specific process of brightness unification can be implemented in a variety of ways, for example: according to the histogram of the image to be synthesized; using the reference image as a reference, adjust the brightness value of the pixel in the central gray area of ​​each image to reduce the difference in brightness between images .

[0030] A3. Combining the at least two images into one...

Embodiment 2

[0051] Embodiment 2, an image synthesis method, the process is as follows image 3 shown, including:

[0052] C1, acquiring at least two images to be synthesized;

[0053] C2, unify the brightness of at least two images to be synthesized;

[0054] C3, the image to be synthesized is divided into a foreground image and a background image;

[0055] C4, according to the size of the background image and the size of the foreground image, anti-cross-border processing is performed on the foreground image.

[0056] Adaptive adjustment and anti-cross-border processing of the pre-processed image make the initially synthesized image achieve a unified viewpoint.

[0057] Since the pictures that need to be synthesized may be taken under different background environments, if the size and position of the portraits in the pictures are not processed, it may cause an unreal scene during the synthesis. The adjustment of the viewpoint of the image is obtained by obtaining the size of the backg...

Embodiment 3

[0087] Embodiment 3, an image processing device, the schematic diagram of the logical structure is as follows Figure 4 shown, including:

[0088] An image acquisition unit 410, configured to acquire at least two images to be synthesized;

[0089] The brightness adjustment unit 420 is configured to unify the brightness of at least two images acquired by the image acquisition unit 410;

[0090] The image synthesis unit 430 is configured to synthesize at least two images into one image after brightness adjustment by the brightness adjustment unit.

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Abstract

The invention discloses an image synthetizing method and an image processing device. The brightness of the image to be synthesized is unified before the image synthesis, so that the synthesized image has the advantages of small brightness difference and natural picture effect as compared with the image obtained by using the traditional synthesis modes in the prior art.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image synthesis method and an image processing device. Background technique [0002] Image synthesis is a hotspot in the field of image processing. Through image synthesis technology, virtual effects that cannot appear in the real world can be produced. Image synthesis specifically refers to the technology of combining two or more different pictures into one picture. "Background change" is a common image synthesis process, the purpose of which is to embed the characters in the photo into the new background by changing the background of the image to achieve special effects. [0003] There is an image synthesis technology in the prior art. The image processing device synthesizes the foreground image and the background image selected by the user. The foreground image selected by the user can be captured in real time or pre-loaded by the user. The background image It ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/50
Inventor 高辉傅彦陈安龙吴治国
Owner HUAWEI TECH CO LTD
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