JPH07121732A - Image processor - Google Patents

Abstract

PURPOSE:To use a DTP software or the like as the material preparing tool of a presentation or a video conference using a monitor by directly converting document information, which is prepared by using the DTP software or the like, to a video signal. CONSTITUTION:The inputted document information is extended on a page memory 106 composed of a bit map memory by a CPU 101 as image data. The image data extended on the page memory are converted to multi-level color image data (to be expressed in 16770000 colors with the respective 8 bits of R, G and B) to be expressed by an image memory at a look-up table 107, reduced into the size of the image memory for display on the monitor at a filtering circuit 108 then stored in an image memory 109. The images stored in the image memory 109 are converted to the video signals by a signal processing circuit 110 and displayed on a monitor 114.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus,
In particular, the present invention relates to an image processing apparatus for using a document information creation tool provided on the premise of printing as a material for a presentation using a monitor or a video conference.

[0002]

2. Description of the Related Art With the recent development of computers, the field of desktop publishing (hereinafter referred to as DTP) for creating, editing, and composing documents / graphics on a computer is rapidly expanding. By using this DTP software, creating materials for various presentations has become very easy. On the other hand, with the development of digital networks, devices such as a video conference system for connecting to a remote place to hold a conference are becoming widespread. Conventionally, the materials used in the video conference are DTP.
Create a document using software and print it to FAX
I used it by sending it with a document camera or shooting it with a document camera.

[0003]

However, in the conventional example, although the conference material created by using the DTP software is electronic information, the material is printed once and then faxed or photographed by the document camera. Work such as doing was necessary.

Further, in the video conference, there is a problem that an expensive color printer is required to create a color material although the color image is used.

Further, a system has been proposed in which the display screen of a computer is used as it is for a presentation or the like, but since the resolution of the monitor is low and the character information is basically composed of binary data. There was a problem with the number of characters and the character quality.

Therefore, an object of the present invention is to provide an image processing apparatus which solves the above problems.

[0007]

In order to achieve the above object, the present invention relates to a developing means for developing input document data into high resolution image data, and multi-valued image data developed by the developing means. Multivalued means for converting the image, filtering means for reducing the image multivalued by the multivalued means, image memory for storing the image information reduced by the filtering means, and the image memory And a signal processing means for supplying the image to the display means.

[0008]

According to the present invention, the work efficiency is improved by converting the document information created by using, for example, DTP software into a video signal without printing it.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of an image processing apparatus. In FIG. 1, 101 is a CP that controls the entire apparatus.
U, 102 and 103 are ROM and RAM in which program data and control data executed by the CPU 101 are stored, 104 is a font ROM for converting character data into image data, and 105 is sent from the outside (for example, the host computer 113). An external interface for receiving the received document information and the like, 106 is a CPU 10
Reference numeral 1 is a page memory for expanding the document data into image data, 107 is a lookup table for performing multi-value conversion of the image data expanded in the page memory 106, and 108 is a reduction for the multi-valued image data. A filtering circuit 109 for performing image processing, 109 an image memory for storing the image data processed by the filtering circuit 108, 110 a signal processing circuit for converting the data in the image memory 109 into a video signal, 111 a hard disk, 112 C
It is a PU bus.

As shown in FIG. 1, document information (including character information and graphic information) created on the host computer 113 is input from the host computer 113 via the external interface 105. The input document information is expanded by the CPU 101 as image data on the page memory 106 composed of a bit map memory and is accumulated in the hard disk 111. The image data developed here is developed at the same resolution as that developed on the printer, and is basically developed into a binary image. When the color information is included in the document information, the color is expressed by using a plurality of bitmaps, for example, 4
By using a bit map memory of 16 bits, 16 colors of n colors can be expressed by associating 16 values expressed by 4 bits with 16 colors of n colors. The image data expanded on the page memory is converted into multi-valued color image data (16.77 million colors can be expressed by 8 bits for each of R, G, and B) that can be expressed in the image memory by the lookup table 107. The post-filtering circuit 108 reduces the size of the image memory to be displayed on the monitor and stores it in the image memory 109. Here, the paper size is A4
When the document information is expanded in the page memory with a resolution of 400 DPI, the number of pixels is about 4700 × 3300, and when this is converted into an NTSC video signal by the lookup table 107, the number of pixels is 640 × 480. It will be reduced by / 7. Then, the image memory 10
The image stored in 9 is converted into a video signal by the signal processing circuit 110 and displayed on the monitor 114. The image data stored in this image memory can also be stored in the hard disk 111.

There are two types of data stored in the hard disk, document information received from the host computer 113 and image data stored in the image memory 109. Both of these types of information can be displayed on the monitor. is there. The processing time required to display these two types of data is different, and the document information that requires processing such as expansion / filtering and takes time to display can be displayed at high speed for storage, but image data with a large amount of data can be displayed. It is conceivable to use it for temporary storage and to store the data to be displayed immediately in this format and delete it when it is no longer needed.

[0013]

As described above, according to the present invention, for example, by directly converting document information created by using DTP software or the like into a video signal, a presentation or television using the DTP software or the like on a monitor is provided. Make it available as a meeting material creation tool. Further, since the printing process can be omitted, the labor of the work can be saved and, for example, a color material can be easily used, and apparently high-quality characters can be used.

[Brief description of drawings]

FIG. 1 is a block diagram of an image processing apparatus of the present invention.

[Explanation of symbols]

 101 CPU 106 Page Memory 107 Lookup Table 109 Image Memory

Claims (4)

[Claims] 1. Expanding means for expanding the input document data into high-resolution image data, and multi-value converting means for converting the image data expanded by the expanding means into multi-valued data.
Filtering means for reducing an image multivalued by the multivalued means, an image memory for storing image information reduced by the filtering means, and an image in the image memory for supplying to the display means An image processing device, comprising: 2. The image memory according to claim 1, further comprising a storage unit for storing the image information stored in the image memory, wherein data is mutually transferred between the image memory and the storage unit. Image processing device. 3. The image processing apparatus according to claim 1, further comprising storage means for storing the input document data and means for expanding the document data stored in the storage means in an image memory. 4. The image processing apparatus according to claim 1, wherein the multi-value quantization unit multi-values the data by using a look-up table.