JPH0951423A - Image output device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily obtain a secondary original in which an image depicted in addition to an original as a result of a projected original and the original itself are accurately and surely positioned and to obtain a multi-color secondary original in which distortion of the projected image is surely corrected. SOLUTION: A reference marker is written at four corners of a projected image of an OHP(overhead projector) original on an electronic blackboard, the projected image is read by an electronic blackboard read section 12, and the read image is given to a reference marker detection section 13 and a timing adjustment section 14. The reference marker detection section 13 detects a reference marker to recognize an existing range of the projected image, position data are outputted to the timing adjustment section 14 and a timing of the image reading the OHP original is adjusted and the result is outputted to an image synthesis section 15. An image reader 11 provides an output of the image signal read from the OHP original by a scanner (not shown) to the image synthesis section 15, in which the image is synthesized with the image from the timing adjustment section 14. A synthesized image paper sheet is obtained, on which the synthesis image is copied.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image output apparatus which obtains a secondary original by synthesizing an image additionally written on a screen onto which an original is projected and the original.

[0002]

2. Description of the Related Art Recently, as an OA device or the like, an image output device is used which projects an OHP document by an overhead projector (OHP) and outputs a secondary document obtained by copying the OHP document (projected image). . Known devices of this type are, for example, Japanese Patent Laid-Open No. 62-63765, “Image Output Device” and Japanese Patent Laid-Open No. 63-261243, “Overhead Projector”.

In the example of Japanese Patent Application Laid-Open No. 62-63765, an OHP document placed on a document table is projected on a screen by reflected or transmitted light, and is further copied by a copying mechanism.
A P manuscript is being copied. In the example of Japanese Patent Laid-Open No. 63-261243, a copying apparatus is built in the OHP main body to project a 0HP original document and output a secondary original document obtained by copying the OHP original document (projected image).

[0004]

As described above, in each of the above-mentioned prior art publications, although it is possible to project a 0HP original document and output a secondary original document obtained by copying the OHP original document, a desired original image is displayed on the projected screen. It was inconvenient and inconvenient because it was not possible to output the secondary manuscript by adding the characters such as.

The present invention solves the problems in the prior art as described above, and it is possible to obtain a secondary original in which the original image and the original image are accurately and surely aligned with each other. An object of the present invention is to provide an image output device in which projection distortion of a projected image is surely corrected and a multicolor secondary original can be easily obtained.

[0006]

In order to achieve the above-mentioned object, an image output apparatus according to a first aspect of the present invention is an image projection apparatus for optically projecting a document and a screen on which the image projection apparatus projects the document. An image projection reading device that outputs a signal obtained by reading the image written in the image reading device, and a copy processing device that takes in a reading signal from the image projection reading device, copies a document, and sends the composite image paper It is a thing.

An image output apparatus according to a second aspect of the present invention includes, in the copy processing apparatus, reference marker detecting means for detecting reference markers attached to four corners of a projection screen of a document of the image projection apparatus and outputting projection screen position data. A timing adjusting unit that adjusts the timing between the image read by the copy processing apparatus and the projection screen position data detected by the reference marker detecting unit, and the original is read by the copy processing apparatus that adjusts the timing. And an image synthesizing means for generating an image by synthesizing the image from the image projection reading device.

In the image output apparatus according to the present invention, the reference marker detecting means divides the reference marker written in a color different from the projection screen of the document, and the timing adjusting means adjusts the timing based on the divided reference marker. Is to do.

In the image output device according to the fourth aspect, between the reference markers attached to the four corners detected by the reference marker detecting means,
An error detection unit that detects that an error has occurred and a correction unit that corrects the error based on the error detected by the error detection unit are provided.

According to another aspect of the present invention, there is provided an image output apparatus, which outputs a signal for reading an image, which is written by being divided into different colors from a screen on which a document is projected, and which outputs a plurality of colors of the screen and the written screen. The copy processing device sends the composite image paper.

According to the image output device of the present invention, the image is written on the screen on which the original is projected.
An image obtained by reading the image and a document are copied to obtain a composite image paper. Further, the reference marker written in a color different from the projection screen of the original is divided to adjust the timing. As a result, it is possible to obtain a secondary original in which the image added to the screen on which the original is projected and the original are accurately and reliably aligned.

In the image output device according to the fourth aspect, when an error occurs between the detected reference markers attached to the four corners, the error is corrected based on the error, so that the projection image is projected. The distortion is surely corrected.

According to the image output device of the fifth aspect, it is possible to easily obtain a multicolor secondary original in which an image written by dividing the original into a different color from the projected screen is copied.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of an image output apparatus of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an external configuration of a first embodiment of an image output device of the present invention. In FIG. 1, in this example, an OHP 1 for projecting an OHP document, an electronic blackboard 2 that outputs the read signal of the projection screen 2b when the OHP document is projected on the screen 2a, and a read signal from the electronic blackboard 2, The digital copying machine 3 is configured to copy the OHP original 1a and send the composite image paper 3a.

FIG. 2 is a block diagram showing the electrical construction of the construction of FIG. In FIG. 2, this example corresponds to the digital copying machine 3 in FIG. 1, an image reading device 11 that outputs an image signal obtained by reading an OHP document, and an electronic blackboard reading device that reads a projection screen of the OHP document on the electronic blackboard 2. And a part 12 are provided.

Further, a reference marker detecting unit 13 corresponding to the digital copying machine 3 for detecting reference markers attached to four corners of the projection screen of the OHP original on the electronic blackboard 2 and outputting position data of the projection screen 2b, and an image. A timing adjusting unit 14 that adjusts the timing between the image read by the reading device 11 from the OHP document and the image from the electronic blackboard reading unit 12 is provided. Further, it has an image synthesizing unit 15 for generating an image by synthesizing the image signal from the image reading device 11 and the image from the timing adjusting unit 14.

FIG. 3 is a block diagram showing the detailed structure of the reference marker detection unit 13. In FIG. 3, the reference marker detection unit 13 includes a maximum / minimum value detection circuit 13a to which an electronic blackboard image signal is input, a main scanning counter 13b for counting the main scanning of the projection screen 2b on the electronic blackboard 2, and an electronic blackboard 2 It has a sub-scanning counter 13c for counting sub-scanning of the projection screen 2b.

Next, the operation of the configuration of the first embodiment will be described. FIG. 4 is a diagram showing a projection screen 2b of an OHP document on the electronic blackboard 2. In FIG. 4, reference markers 16a, 16b, 16c, 16d are displayed on the four corners of the OHP original projection screen 2b on the electronic blackboard 2. The reference markers 16a to 16d are the screen 2a.
Are written in the four corners of the projection screen 2b. This projection screen 2b is read by the electronic blackboard reading unit 12 shown in FIG. 2, and the reference marker detection unit 13 and the timing adjustment unit 14 are read.
Is input to

In the reference marker detecting section 13, the reference marker 16
It detects a to 16d, recognizes the existing range of the projection screen 2b, and outputs the position data of the projection screen 2b to the timing adjustment unit 14. In the timing adjusting unit 14, the image read by the image reading device 11 from the OHP document and the OHP1
The electronic blackboard reading unit 12 reads the written image after stopping the projection by, and adjusts the timing with the image and outputs the adjusted image to the image combining unit 15.

In addition, the image synthesizing unit 1 uses an image signal obtained by the image reading device 11 reading an OHP document with a scanner (not shown).
5, the image from the timing adjusting unit 14 is combined therewith, and the combined image paper 3a obtained by copying the image data is sent out.

In this operation, the reference marker detector 13 shown in FIG. 3 detects the image data on the outermost side of the image as the reference markers 16a to 16d. The main scanning counter 13b counts the maximum main scanning counter value Xmax and the minimum main scanning counter value Xmin when the reference markers 16a to 16d are present, and inputs them to the maximum / minimum value detection circuit 13a. Further, the maximum sub-scanning counter value Ymax and the minimum sub-scanning counter value Ymin are counted by the sub-scanning counter 13c and input to the maximum / minimum value detecting circuit 13a, where the existence range of the projection screen 2b is determined, and the projection screen 2b is detected. Position data is output to the timing adjustment unit 14.

FIG. 5 is a view showing a projection screen 2b projected by the OHP 1 on the screen 2a of the electronic blackboard 2. In FIG. 5, on the projection screen 2b on the screen 2a, OHP originals (plan A, plan B, price, function) shown by solid lines are projected.
Contents (100, 80, large, small, and reference markers 16a to 16d) indicated by dotted lines are written therein.

FIG. 6 is a diagram showing an image written on the projection screen. When the projection of the OHP 1 is stopped here, the contents (100, 80,
Large, small and fiducial markers 16a-16d) will remain. The contents written on the screen 2a are read by the electronic blackboard reading unit 12 shown in FIG.
3 and the timing adjusting unit 14.

Also, the screen 2a projected by OHP1
The OHP document shown by the solid line on the upper projection screen 2b is read by the image reading device 11 (digital copying machine 3 in FIG. 1) shown in FIG. Then, based on the reference markers 16a to 16d detected by the reference marker detection unit 13, the existence range of the projection screen 2b is recognized and combined, and the combined image paper 3a obtained by copying the image shown in FIG. 5 is obtained.

Next, the second embodiment will be described. Figure 7
FIG. 9 is a block diagram showing the configuration of the second embodiment. In FIG. 7, in the second embodiment, the reference markers 16a to 16d are provided.
Is written in red on the screen 2a. Others are black. The image signal read from the electronic blackboard reading unit 12 is detected through the red filter 20, and the red image signal is input to the reference marker detection unit 13. The reference marker detection unit 13 determines the reference markers 16a to 16d written on the screen 2a based on the red image signal. In this case, it is easy to distinguish it from other black data, and it becomes easy to recognize the existing range of the projection screen 2b.

Next, a third embodiment will be described. FIG.
FIG. 9 is a block diagram showing a configuration of a third embodiment. In FIG. 8, in the third embodiment, when writing is performed in red on the black projection screen 2b on the screen 2a, the two-color composite image paper 3a is obtained. The red image signal written on the screen 2a of the electronic blackboard reading unit 12 and read by it and the black OHP image signal read by the image reading device 11 from the OHP document are processed by the two-color image processing device, and this data is Send to 2 color digital copier
The composite image paper 3a copied in color is obtained.

Next, a fourth embodiment will be described. FIG.
FIG. 11 is a block diagram showing a configuration of a fourth embodiment. This fourth
In the embodiment, the correction is performed when the projection distortion occurs on the projection screen 2b. In FIG. 9, the electronic blackboard reading unit 12
The electronic blackboard image memory 30 for temporarily storing the electronic blackboard image data read by the sub-scanning line, the sub-scanning line scaling unit 31 for scaling the sub-scanning lines, and the sub-scanning counter 32 for counting the sub-scanning lines. And are provided.

Next, the operation of the fourth embodiment will be described. FIG. 10 is a diagram showing a projection screen 2d in which the OHP 1 projects on the screen 2a of the electronic blackboard 2 and the projection distortion occurs. In FIG. 10, this projection screen 2d is a screen projected by the OHP 1 from below on the screen 2a of the electronic blackboard 2. Therefore, the upper part of the screen 2a is enlarged,
x ₁ > x ₂ . That is, the reduction value in the main scanning direction due to the distortion in the sub scanning line y is represented by [Equation 1].

[0029]

[Equation 1]

The image signal of the projection screen 2d in which the projection distortion has occurred is stored in the electronic blackboard image memory 30 and the sub-scanning counter 32 counts the sub-scanning lines. Based on the counted sub-scanning lines, the sub-scanning line-based variable magnification unit 31 corrects the projection distortion. This correction is from [Equation 1] to [Equation 2]
You can ask in.

[0031]

[Equation 2]

FIG. 11 is a diagram showing the projection screen 2d in which the projection distortion has been corrected by the scaling in the sub-scanning line-based scaling unit 31. In FIG. 11, the projection distortion is corrected by the scaling in the sub-scanning line scaling unit 31, and x ₁ = x ₂ .

[0033]

As is apparent from the above description, according to the image output apparatus of the present invention, the image written on the screen on which the original is projected and the original are copied, and a composite image thereof is obtained. As the paper is obtained and the reference marker written in a color different from the projected screen of the original is divided to adjust the timing, the image added to the original projected screen and the original can be accurately and surely. The aligned secondary document can be obtained.

According to the image output device of the fourth aspect, when an error occurs between the detected reference markers attached to the four corners, the error is corrected based on the error. The projection distortion of can be surely corrected.

According to the image output device of the fifth aspect, it is possible to easily obtain a multicolor secondary original in which the image written by dividing the original into a screen different from the projected image is copied.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external configuration of a first embodiment of an image output apparatus of the present invention.

FIG. 2 is a block diagram showing an electrical configuration of the configuration of FIG.

FIG. 3 is a block showing a detailed configuration of a reference marker detection unit shown in FIG.

FIG. 4 is an explanatory diagram showing a projection screen of an OHP document on the electronic blackboard shown in FIG.

FIG. 5 is an explanatory diagram showing a projection screen projected by the OHP on the screen of the electronic blackboard in the first embodiment.

FIG. 6 is an explanatory diagram showing an image written on a projection screen in the first embodiment.

FIG. 7 is a block diagram showing a configuration of a second embodiment.

FIG. 8 is a block diagram showing a configuration of a third embodiment.

FIG. 9 is a block diagram showing a configuration of a fourth example.

FIG. 10 is an explanatory diagram showing a projection screen having projection distortion in the fourth embodiment.

FIG. 11 is an explanatory diagram showing a projection screen in which projection distortion has been corrected by zooming in the fourth embodiment.

[Explanation of symbols]

 1 OHP 1a OHP original 2 electronic blackboard 2a screen 2b projection screen 3a composite image paper 3 digital copying machine 11 image reader 12 electronic blackboard reader 13 reference marker detector 13a maximum / minimum value detection circuit 13b main scan counter 13c sub-scan counter 14 Timing adjusting unit 15 Image combining unit 16a to 16d Reference marker 20 Red filter 30 Electronic blackboard image memory 31 Sub-scanning line-based variable magnification unit 32 Sub-scanning counter

Claims (5)

[Claims] 1. An image projection device for optically projecting a document, an image projection reading device for outputting a signal reading the image written on a screen on which the image projection device projects the document, and the image projection reading device. An image output device, comprising: a copy processing device that receives a read signal from the device, copies the original document, and sends out a composite image paper thereof. 2. A reference marker detecting unit, which detects reference markers attached to four corners of a projection screen of a document of an image projection apparatus and outputs projection screen position data to the copy processing apparatus, and the copy processing apparatus detects a document. Timing adjusting means for adjusting the timing between the read image and the projection screen position data detected by the reference marker detecting means, and the image and image projection image of the original read by the copy processing apparatus, the timing of which is adjusted by the timing adjusting means. The image output apparatus according to claim 1, further comprising an image synthesizing unit configured to generate an image by synthesizing an image from the reading device. 3. The reference marker detecting means divides the reference markers written in a color different from the projection screen of the original,
3. The image output device according to claim 2, wherein the timing adjusting means adjusts the timing based on the divided reference markers. 4. An error detecting unit that detects that an error has occurred between the reference markers attached to the four corners detected by the reference marker detecting unit, and the error based on the error detected by the error detecting unit. The image output apparatus according to claim 2, further comprising a correction unit that corrects 5. A copy processing apparatus that outputs a signal obtained by reading an image, which is written by being divided into different colors from a screen on which an original is projected, and a composite image paper of a plurality of colors of this screen and the written screen. The image output device according to claim 2, wherein the image output device outputs the image.