JP2567108B2 - Image composition method in image processing - Google Patents

Description

The present invention relates to image processing by a computer, and particularly to an image (object shape etc.) to be combined with an image to be combined (certain pattern etc., hereinafter referred to as a combined image). Hereinafter, it will be referred to as an image to be combined) with respect to an image combining method in image processing for performing a process of combining.

[Conventional technology]

Conventionally, in the image synthesis method in this type of image processing,
The following scheme was adopted.

A method of transforming, enlarging, and reducing the entire composite image, and combining the composite image two-dimensionally (without giving a stereoscopic effect) to the composite image. Based on the object shape information of the three-dimensional surface model for the composite image. , A method of mapping a synthesized image onto a synthesized image and synthesizing the same. [Problem to be Solved by the Invention] In the image synthesizing method (method) in the above-described first conventional image processing, the synthesized image is a shape of the synthesized image. Therefore, there is a disadvantage in that the image becomes unnatural (three-dimensional image synthesis with a stereoscopic effect cannot be performed).

In the image synthesizing method (method) of the above-described second conventional image processing, since the object shape information regarding the image to be combined is required, the image synthesizing process becomes very complicated,
If the composite image has a complicated shape, it takes a long time to perform the image combining process.

In view of the above points, an object of the present invention is to eliminate the above-mentioned drawbacks and to make a composite image match a shape of an image to be combined (an arbitrary shape specified by using a pointing device). An object of the present invention is to provide an image synthesizing method in image processing capable of easily (for example, without requiring object shape information) image synthesizing (having a stereoscopic effect).

[Means for solving the problem]

The image synthesizing method in the image processing of the present invention is the image synthesizing method in the image processing in which the synthesized image input by the image input means is synthesized with the synthesized image input by the image input means and is displayed on the image display means. Mesh creating means for creating a mesh for dividing an image, and mesh modification for creating a deformed mesh by deforming the mesh created by the mesh creating means into the shape of the image to be combined by moving grid points based on an instruction from a pointing device. Means, the composite image is divided into meshes based on the correspondence between the composite image and the mesh created by the mesh creating means and the correspondence between the mesh created by the mesh creating means and the deformed mesh created by the mesh deforming means. The individual shapes created to fit the deformed mesh The deformation to the composite image and an image synthesizing means for synthesizing the be-combined images.

[Action]

In the image synthesizing method in the image processing of the present invention, the mesh creating means creates a mesh that divides the composite image, and the mesh deforming means creates the mesh created by the mesh creating means by moving the grid points based on an instruction from the pointing device. The deformed mesh is created by deforming into the shape of the composite image, and the image compositing unit associates the composite image with the mesh created by the mesh creating unit and the mesh created by the mesh creating unit and the deformation created by the mesh deforming unit. Based on the correspondence with the mesh, each figure obtained by dividing the synthesized image by the mesh is transformed so as to fit the deformed mesh, and the synthesized image is synthesized with the synthesized image.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of an image synthesizing method in image processing according to the present invention. The image synthesizing method in the image processing of the present embodiment is performed by the image inputting means 1 for inputting an image (synthesized image, composited image, etc.), the image data input by the image inputting means 1 and the processing by the image processing means 3. An image storage means 2 for storing data in the process, data of a processing result, etc .; an image processing means 3 for processing an image input by the image input means 1;
An image display unit 4 for displaying an image in the course of processing by the image processing unit 3 and an image of a processing result, and a pointing device (mouse or the like) for giving an instruction to the image processing unit 3 about the image displayed by the image display unit 4.
5 is included.

The image processing means 3 receives the mesh creating means 31 for creating a mesh for dividing the composite image in the image input by the image input means 1 and the mesh created by the mesh creating means 31 from the image input means 1. Mesh deforming means 32 that deforms to the shape of the image to be combined in the image (the mesh created by the deformation is called deformed mesh)
And an image synthesizing means 33 for synthesizing the synthesized image with the synthesized image so as to match the shape of the deformed mesh created by the mesh deforming means 32.

Next, the operation of the image synthesizing method in the image processing of the present embodiment configured as described above will be described. Here, in the case where image synthesis processing (image synthesis processing for synthesizing the pattern of the synthetic image 11 into the rectangular parallelepiped image which is the composite synthetic image 13) as shown in FIGS. 2A to 2C is performed. The operation of will be described.

The image input means 1 inputs the composite image 11 and the composite image 13.

Receiving the combined image 11 and the combined image 13 from the image input unit 1, each unit in the image processing unit 3 performs the following processing.

The mesh creating means 31 creates a mesh 12 (in this case, a mesh composed of a plurality of rectangles; see FIG. 2A) for dividing the composite image 11 and displays it on the image display means 4 (by this). The composite image 11 is divided by an arbitrary number of rectangular figures related to the mesh 12. The composite image 11
And the data indicating the correspondence between the mesh 12 and the mesh 12 are stored in the image storage means 2).

Based on an instruction from the pointing device 5, the mesh deforming means 32 deforms the mesh 12 created by the mesh creating means 31 into a rectangular parallelepiped shape that fits the composite image 13 to create the deformed mesh 14 (first). (See FIG. 2B) (Data indicating the correspondence between the mesh 12 and the deformed mesh 14 is stored in the image storage means 2. The mesh 12
The shape of the transformation process is displayed on the image display means 4 for the instruction by the pointing device 5, and the combined image 13
Is displayed on the image display means 4 so that it can be referred to when making the above instruction).

This deformation is performed by moving the grid points of the mesh 12 (including the mesh in the deformation process) according to an instruction from the pointing device 5 (a plurality of grid points may overlap in the deformation process).

In this case, when it is desired to approximate the mesh 12 to the shape of the rectangular parallelepiped (composite image 13), control is passed to the mesh creating means 31 in the process of deformation, and the mesh 12 is further divided into finer parts. The mesh deforming means 32 performs the deformation close to the shape.

The image synthesizing unit 33 converts the synthetic image 11 into the mesh 12 based on the data indicating the correspondence between the synthetic image 11 and the mesh 12 and the data indicating the correspondence between the mesh 12 and the deformed mesh 14 stored in the image storage unit 2. Each of the divided rectangles (patterns inside the rectangle) is transformed so as to fit the deformable mesh 14 (transformed into individual quadrilaterals that form the deformable mesh 14), and the composite image 11 is combined. A composite result image 15 which is a composite image is displayed on the image display means 4 (see FIG. 2 (c)).

According to the image synthesizing process as described above, the object shape information related to the synthesized image 13 is not needed, and the synthesized image
11 can be matched with the shape of the composite image 13
Dimensional (three-dimensional) image synthesis can be easily performed at high speed.

〔The invention's effect〕

As described above, the present invention transforms a composite image into an arbitrary shape of an image to be composited based on an instruction from a pointing device such as a mouse, thereby creating a stereoscopic three-dimensional image composition (unnatural image). There is an effect that non-image combining can be performed easily (without requiring complicated processing for handling object shape information and the like) at high speed.

In particular, when the present invention is used in the field of computer graphics, the above effects can be remarkably exhibited.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention, and FIGS. 2A to 2C are views for explaining a concrete operation of an image synthesizing method in the image processing shown in FIG. Is. In the figure, 1 ... Image input means, 2 ... Image storage means, 3 ... Image processing means, 4 ... Image display means, 5 ... Pointing device, 11 ... Composite image, 12 ... Mesh, 13 ... ... image to be combined, 14 ... deformed mesh, 15 ... combined result image, 31 ... mesh creating means, 32 ... mesh deforming means, 33 ... image combining means.

Claims (1)

(57) [Claims] 1. An image synthesizing method in image processing for synthesizing a synthesized image input by an image input means with a synthesized image input by an image input means and displaying the synthesized image on a screen for displaying a mesh. A mesh creating means for creating; a mesh deforming means for creating a deformed mesh by deforming the mesh created by the mesh creating means into the shape of the image to be combined by moving a grid point based on an instruction from a pointing device; Based on the correspondence between the mesh created by the mesh creating means and the correspondence between the mesh created by the mesh creating means and the deformed mesh created by the mesh deforming means, the composite image is divided into individual figures by meshes. Synthesize a composite image by transforming it to fit the deformed mesh Image synthesizing method in an image processing characterized by having an image synthesizing means for synthesizing the image.