JP3923144B2 - Hologram creation method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hologram and a hologram production method.
[0002]
[Prior art]
In a conventional hologram, when a pattern is output on a film, a point light source is placed behind the pattern and the film is viewed, an image can be seen behind the film. In such a hologram, the shape of the film is rectangular, and generally a rectangular hologram is created. However, there is a desire to create a hologram in a region having an arbitrary shape.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of such a demand, and an object of the present invention is to provide a hologram having an arbitrary contour and reproducing a single image, and a method for producing the hologram. .
[0004]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention includes (a) a step of creating a single original image, (b) a step of creating a Fourier transform image of the single original image, and (c) the unitary image. Binarizing one Fourier transform image, (d) synthesizing the binarized Fourier transform image and a halftone dot image, and (e) outputting the synthesized image on a film; And a hologram creating method characterized by comprising:
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram of an apparatus for carrying out a hologram creating method according to an embodiment of the present invention. The personal computer 1 creates one original image 30 and performs processing such as Fourier transform, creates a repeated pattern image, and stores it in a floppy disk (FD) 3. The laser scanner 5 reads a repeated pattern image stored in the floppy disk 3 and outputs it to the film 21 or the film 41. An optical disk or the like can be used in place of the floppy disk 3, and the personal computer 1 and the laser scanner 5 can be directly connected or can be output via a network.
[0006]
FIG. 2 is an explanatory diagram of a hologram when Fourier transform images are arranged in a heart-shaped region. In FIG. 2, reference numeral 21 denotes a film, and Fourier transform images of “a” are recorded in regions 23-1 and 23-2. No image is recorded in areas other than the areas 23-1 and 23-2. In this hologram, when the region 23-1 is viewed with the left eye and the region 23-2 is viewed with the right eye, a reproduced image “a” appears.
[0007]
FIG. 3 is a flowchart showing a method of creating a hologram when Fourier transform images are arranged in the heart-shaped region shown in FIG. First, one original image 30 is created on the personal computer 1 (step 301).
Next, a Fourier transform image 31 of the original image 30 is created using the personal computer 1 (step 302), the Fourier transform image is binarized (step 303), and a binarized Fourier transform image 32 is created. To do.
Further, the binarized Fourier transform image 32 is arranged in a region having an arbitrary contour (step 304), and an image 33 is obtained. The image 33 arranged in this way is output by using the laser scanner 5 in an area where an arbitrary contour is formed on the film 21 (step 305).
[0008]
FIG. 4 is an explanatory diagram of a hologram when a halftone image 45 is embedded. In FIG. 4, reference numeral 41 denotes a film, in which a Fourier transform image of “a” is recorded in an area 43, and a halftone image 45 is recorded in a heart-shaped area.
As an application of such a hologram, characters such as “congratulations on marriage” are embedded in the region 43, and a picture of the groom and the bride is used as the halftone dot image 45, and this candle is used as a point light source for candle service at a reception Can be played.
[0009]
FIG. 5 is a flowchart showing a method of creating a hologram when the halftone image 45 shown in FIG. 4 is embedded. First, one original image 30 is created on the personal computer 1 (step 501).
Next, a Fourier transform image 31 of the original image 30 is created using the personal computer 1 (step 502), the Fourier transform image is binarized (step 503), and a binarized Fourier transform image 32 is created. To do. Further, the binarized Fourier transform image 32 is arranged in a region having an arbitrary contour (step 504), and an image 34 is obtained. Next, the arranged image 34 and the halftone dot image 45 are synthesized (step 505) to obtain an image 35. The image 35 synthesized in this way is output onto the film 41 using the laser scanner 5 (step 506).
Here, the image 34 is output in a region where an arbitrary contour is formed on the film, and then a halftone dot image 45 is output. Even if these films are synthesized, a hologram embedded with the halftone dot image 45 is created. it can.
[0010]
FIG. 6 is an explanatory diagram for reproducing an image using the film 21 (or film 41) obtained in step 205 and step 506. FIG. In FIG. 6, 51 is a person and 55 is a point light source. When a point light source is arranged behind the film 21 and the person 51 views the film 21, an image 57 that is point symmetric around the point light source 55 can be seen corresponding to the image in the film 21.
[0011]
The hologram according to this embodiment can be used for various events and children's playground equipment by making use of its design.
[0012]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a hologram and a method for producing a hologram, in which a single image having an arbitrarily formed outline is reproduced.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an apparatus for carrying out a method for creating a hologram. FIG. 2 is a diagram showing an example of a hologram. FIG. 3 is a flowchart showing a method for creating a hologram in FIG. FIG. 5 is a flowchart showing a method of creating the hologram shown in FIG. 4. FIG. 6 is an explanatory diagram when an image is reproduced using the film 21 or the film 41.
1 ... Personal computer 3 Floppy disk 5 Laser scanner 30 Original image 31 Fourier transform image 32 Binarized Fourier transform image 32
33... Image 35 in which Fourier transform image 32 is arranged in a region having an arbitrary contour... Image 21 and 41 in which image 33 and halftone image 45 are synthesized. …… People 55 ……… Point light source 57 ………… Visually visible image

Claims (1)

  (A) creating a single original image; (b) creating a Fourier transform image of the single original image; and (c) binarizing the single Fourier transform image. (D) synthesizing the binarized Fourier transform image and halftone image, and (e) outputting the synthesized image on a film. .

Images