JPH0879672A - Still picture reproducing device - Google Patents

Abstract

PURPOSE: To provide a still picture reproducing device capable of instantaneously redisplaying a pre-scanning picture by compressing the pre-scanning picture to read an original first and write it into a memory. CONSTITUTION: Picture data obtained by scanning the whole original by an image scanner 1 is fetched in a high-vision frame memory 10, compressed by a compression and restoration control circuit 11 and stored in a memory for compressed data 12 temporarily. Then based on picture data of the whole original, the fetching frame of desired picture data is decided by a mouse 7, only the desired frame is fetched as color picture data by an image scanner 1 again and is written in a recording medium by an optical disk drive 2 through the memory 10. On the other hand, when different from a desired picture area, picture data of the whole original is read out from the memory 12 for compressed data to specify picture data again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a still picture reproducing apparatus for recording a plurality of still pictures on a still picture recording medium and reproducing the recorded still pictures.

[0002]

2. Description of the Related Art Conventionally, a photograph, a printed matter, or the like is captured as high-resolution image data, recorded on a recording medium such as a magnetic recording medium, and the high-resolution image data is displayed on a high-resolution television monitor such as a high-definition monitor. A system that displays images is proposed. For example, JP-A-5-22682 (H04N5 /
There is a technique as shown in 76).

The conventional technique as described above has a configuration as shown in FIG. The operation of this prior art will be described. The image scanner 72 scans and reads a photograph or a printed matter, and the image processor 71 extracts an image of a desired area designated by the mouse 77 as image data, and the optical disc drive 73 captures the image on the optical disc.

For example, as shown in FIG. 8, when an image of B is read from a scanner and areas A to D in the image are designated, the image designated in the area is taken and the image of B is displayed on the high-definition monitor 76. , The image is written to the optical disc.

Then, the image data stored in this optical disk is read out and displayed on the high-definition monitor 76. The personal computer 74 controls the image processor 71 and confirms the control operation on the personal computer monitor 75.

In this conventional technique, the following method is available as a method for designating an area by using the image scanner 72.

First, in order to know the entire image to be input, it is read by a scanner. In this case, a monochrome image is input that can be processed at a higher speed than inputting a color image. Then, a so-called pre-scan for scanning the entire area readable by the scanner is performed.

The area of the image to be input is specified by the mouse based on the prescan image, and this time, only the specified area is captured as the color input image. This is called a main scan. If the designated areas are different, the operation from the prescan is repeated again.

As described above, the originals to be sequentially input are taken in by the replacement scanner, the desired area is stored in the optical disk, read from the optical disk, and displayed on the high-definition monitor.

However, this method has a drawback that the prescan image is lost when the main scan is performed, and therefore if the main scan fails, the prescan must be performed again.

On the other hand, as another method, the above-mentioned pre-scanned image data is once stored and stored in an optical disk. Then, the main scan described above is performed based on the image data. This has the advantage that the pre-scan image can be displayed immediately even if the main scan fails because the pre-scan image is stored. However, there is a drawback that it takes 30 seconds at the fastest to read and display the image data once stored in the optical disk.

[0012]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described drawbacks, and the prescan image can be immediately redisplayed by compressing the prescan image read from the original and writing it in the memory. An object is to provide a still image reproducing device.

[0013]

SUMMARY OF THE INVENTION The present invention is directed to a scanner for scanning an original and converting it into prescanning and color image data, a first storage means for storing the image data, and the stored prescan. Designating means for designating an image of a desired area from the image data for use, control means for controlling the area designated by the designating means to scan the original from the original and reading it as color image data, and reading by the control means. In a still image reproducing device comprising a recording medium for storing the color image data thus obtained and a device for reproducing and displaying an image read from the recording medium, the prescan image data read by the scanner is stored, Image compression means for compressing the image data, and second storage means for storing the image data obtained by the image compression means. A still image reproducing apparatus according to.

[0014]

According to the present invention, since the prescan image data is compressed and stored in the memory with the above-described configuration, the capacity of the memory can be reduced and the prescan image data can be read from the memory at any time. be able to.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a block diagram of an embodiment of the present invention.

First, 1 is an image scanner, 2 is an optical disk drive, 3 is an image processor, 4 is a personal computer, 5
Is a personal computer monitor, 6 is a high-definition monitor, and 7 is a mouse. Then, the image processor 3 is an interface (IF) that controls the data from the image scanner 1.
A control circuit 8, an interface (IF) control circuit 9 that controls data to the optical disk drive 2, a high-definition frame memory 10 that stores image data, a compression / decompression control circuit 11 that compresses and restores image data, and a compressed data The compressed data memory 12 to be stored, the CPU 13,
It is composed of a mouse position recognition circuit 14 for recognizing the position of the mouse 7 and a D / A converter 15 for converting data into an analog signal.

Next, the operation will be described with reference to flowcharts (FIGS. 2 to 6). First, when the device is powered on, each hardware is booted and initialized (S in FIG. 2).
1). Then, there is a command command from the personal computer 4 (S
2) and the command is discriminated and the process jumps to each routine (S3).

First, the prescan will be described. Referring to the flowchart of FIG. 3, when the prescan command is received (S4), the hardware is set (S5), and the scan area and the resolution (sampling) are designated to the scanner. In the case of prescan, the area specifies the entire area read by the scanner (S6).
When the scan is completed, the next command is waited for (S7).

Thereafter, the prescan image is stored in the high-definition frame memory 10, and this time,
A command to compress the image data is issued. When instructed, the flow chart shown in FIG. 4 is obtained. When there is a command command (S8), the compression / decompression control circuit 11 compresses the data (S9). When the compression is instructed, the hardware is switched to the compression operation (S10) and compression is performed. This compression method is performed by a technique called JPEG. Incidentally, JP
EG is a known technique as described on page 30 of Nikkei Electronics Books, "Data Modulation and Digital Modulation", issued October 1, 1993. When the compression is completed, the compressed data is stored in the memory 12 and waits for the next command (S12).

Next, when the area designation command is designated, as shown in the flow chart of FIG. 5, the desired area is designated from the image read by the prescan by the mouse 7 (S14). The mouse 7 is displayed on the screen (S15). Then, an instruction is given to specify the area frame from the personal computer 4 (S16), the address is determined (S17), the personal computer 4 confirms the coordinates of the designated point (S18), and the high-vision frame size is displayed (S19). If the frame is at the desired position, the process ends. If it is not at the desired position, the frame is designated again (S20).

After that, when the frame position is determined as shown in FIG. 6, the image scanner 1 instructs the main scanning operation for reading the color image data in the frame area (S2).
1). Then set the hardware. The image scanner 1 reads only the range of the frame with the color image data (S23).

If the read image is what the editor (person) desires, it is written in the optical disc drive 2 (S2).
If 4) is not the case, compression is performed in advance, and an instruction to restore the prescan image data stored in the compressed data memory 12 is issued.

When the restoration is instructed, the hardware is set to the restoration (S11), the data is read from the compressed data memory 12, and the compression / restoration control circuit 11 restores the data.

Based on the restored pre-scan image, a desired region is re-designated by a region designation command, and only the range of the frame is read again as color image data. By repeating the above operation, a desired color image is obtained.

When the image data is read from the optical disk drive 2, if it is specified by the personal computer 4, CP
The image data read by the U13 is written in the high-definition frame memory 10 and displayed on the high-definition monitor 6 via the D / A converter 15.

The image scanner 1 is sampled by, for example, horizontal: vertical = 1920 (dots): 10 so that it is displayed on a high-definition monitor.
It is set to 35 (dots).

[0027]

As described above, according to the present invention, since the prescan image is compressed and stored in the memory, it is only necessary to restore the redisplay of the prescan image stored in the memory. It can be done independently of the scanner reading. As a result, the re-display of the pre-scan image can be quickly performed (0.5 seconds or less), and the troublesome editing of the main scan is eliminated.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 5 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 7 is a block diagram showing a conventional technique.

FIG. 8 is a diagram illustrating an operation of specifying a frame position.

[Explanation of symbols]

 1 image scanner 2 optical disk drive 3 image processor 4 personal computer 5 personal computer monitor 6 high-definition monitor 7 mouse 8 interface control circuit 9 interface control circuit 10 high-definition frame memory 11 compression / decompression control circuit 12 compressed data memory 13 CPU 14 mouse position recognition circuit 15 D / A converter

Claims (1)

[Claims] 1. A scanner for scanning an original and converting it into pre-scan and color image data, a first storage means for storing the image data, and a desired area from the stored pre-scan image data. A designation unit for designating an image, a control unit for controlling the region designated by the designation unit to scan the document from the original by the scanner and read it as color image data, and the color image data read by the control unit are stored. An image for storing prescan image data read by the scanner and compressing the image data in a still image reproducing apparatus comprising a recording medium and means for reproducing and displaying an image read from the recording medium. A still image reproducing apparatus comprising a compression means and a second storage means for storing the image data obtained by the image compression means.