JPS58190158A - Picture processor - Google Patents

Abstract

PURPOSE:To ensure the effective use of a picture, by sampling a desired area of the picture, then synthesizing that area with another picture to make a picture having a different ratio. CONSTITUTION:An original picture is supplied to a picture input device 41 and stored in an input picture storing circuit 42. Then a segment detecting circuit 44 detects the segment of a pattern and stores it in a segment storing circuit 45. The original picture is then reduced by a reducing circuit 49 and stored in a reduction storing circuit 50 in the form of the reduced picture information. For the original picture displayed at a display 43, the areas like characters, etc. are indicated by a light pen 46 and stored in a region storing circuit 48 via a region detecting circuit 47. Then the area which is not reduced is shifted by a picture shifting circuit 51 and stored in a shifted picture storing circuit 52. Finally, both pictures are added together by an adder 53 and stored in a synthetic picture storing circuit 54. The synthetic picture is outputted through a picture output device 55.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image processing device, and more particularly to an image processing device that extracts a desired portion or image from an image and synthesizes it with the rest of the image as an image with a different ratio. It is.

Conventionally, the most common type of device that uses this gutter is an electronic copying machine. This electronic copying machine copies an original picture, but unlike a diazo copying machine, it uses an image reading system using an optical lens, so it can enlarge or reduce the original picture and copy it. In Figure 1, CI) is the original painting (CaD in the same figure), and (B) is 1/'N (in this example, 1
/2) is shown ((b) in the same figure). l! 1
As is clear from the figure, figures (2), 03 and characters (L4. (14) in the original U-ring are each 1/
Figure (support), (e) and letters reduced to N - 1lJ4
becomes.

In conventional electronic copying, no matter what kind of figure, character, or symbol is written on the original image, it is uniformly reduced in size. Naturally, the information provider who intends to reduce this original drawing (b) to (b) does this for a certain purpose, such as reducing it because it is inconvenient to handle large drawings. Like a patent abstract, it is sufficient to understand the general outline without understanding the details, so the drawings are reduced in size and many items are written on the same page. However, if the original image is uniformly reduced, the figures may be discernible, but the characters or symbols may be difficult to read, or may not be readable at all. On the contrary, if you want to enlarge a part of the original picture, there is a problem in that the whole picture has to be enlarged. In this way, when images are enlarged using an electronic copying machine or the like, the screen is uniformly reduced or enlarged regardless of the information provider's intended number, so the disadvantage is that the intended information cannot be presented without waste. was there.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above.
The system reduces the size of the image, extracts characters etc. while still being legible, and reduces only the figures and combines the two images so that the information will not be lost even if the image is reduced.

FIG. 2 is a diagram showing an image reduced by the device according to the present invention, where ctn is the reduced image reduced by the device, (a)
, 2) are the parallelogram and rhombus figures each reduced to 11N (1/2 in this example), and (b) is the information Is@
This is a character image that has not been reduced in size and is a character that needs to be read according to the user's intention. In this example, the character (4) is deemed unnecessary by the information provider and is not displayed.

An embodiment of the present invention will be described below with reference to the drawings. 8th
The figure is a block diagram of this device, and (b) is an image input device that inputs the original image to be reduced, such as a television camera.

This is a device that converts an image into an electrical signal, such as a facsimile device, or a device that inputs an image signal from a magnetic disk, a document file, etc. to an input image storage circuit, which will be described next. (A proverb is an input image storage circuit that stores the original image to be reduced as an electrical signal, and a proverb is a display device that displays this original image, such as a television receiver, etc.)
@4 is a line segment detection circuit that detects a line segment of a figure from the image information stored in the input image storage circuit (b), and (c) is a line segment of a figure extracted by the line segment detection circuit (b). The line segment memory circuit that stores images, (+7) is written by a light pen -,
An area detection circuit detects the area of the image specified by the information provider, - is an area storage circuit that stores the detected image within this specified area, and - is stored in a line segment storage circuit. A reduction circuit that reduces an image to 1/N, and a ring is a reduction storage circuit that stores the 1/N image obtained by the reduction circuit. An image moving circuit that measures the distance and moves the image by 1/'N of the distance, (sub) is a moving image storage circuit that stores the moved image, and (to) is a reduction storage circuit.
An adder that adds the image of 1 and the moving image storage circuit/image 1, - is a composite image storage circuit that stores this added composite image, and - is an image output device that prints this composite image.

Next, the operation of this embodiment will be specifically explained using FIGS. 4(2) to 4(f). First, the image input device - ◇ is shown in Figure II1 (8
) is input. Image input device (at)
is, for example, a facsimile machine, and the image read by this device is stored as an electric signal in the input image storage circuit θ as an image signal composed of X pixels in the horizontal direction and Y pixels in the vertical direction. Next, a line segment detection circuit detects the line segment of the figure in the image. 1. The detection power formula may be of any type, but for example, it is one that specifies the maximum length of a line segment of a character or symbol that is not a figure, and recognizes that all line segments exceeding that length are figures. be. The figure (a) detected in this way is shown in Figure 4 (a) (11 is in the line segment memory circuit).
As shown in <xxy7y picture (1! is stored as seasonal.

Next, this image Is, 111 is reduced to t/H by a reduction circuit. That is, it is stored in the line segment storage circuit)(X
The image of y pixels is N51 in the horizontal direction and N51 in the vertical direction. pixels are converted into one pixel, (x/N)
y/N ) pixel image (shown in the fourth rnear I(b)) is stored in the reduction storage circuit.

On the other hand, the input value i (II) is displayed on the display. 15 The information provider uses a light pen to mark the area (■) surrounding the characters or symbols that need to be legible when reducing the original image on the displayed Gi--m image as shown in Figure 4(c).
Indicate by a closed curve drawn with . The optical signal from the display device is converted into an electrical signal by the light pen (2) and guided to the area detection circuit (2). The area detection circuit detects which part of the image in the input image storage circuit is specified from the electrical signal from the light pen, and only the character image (b) within the specified non-reduced area (2) is detected as an area. stored in the memory circuit).

Figure f44 (d) shows the stored image (goods).

Next, the image moving circuit (2) performs the following operation.

This will be explained using FIG. 4(e).

(stomach)! 2 points at the bottom left corner of the screen consisting of P x y pixels (x-Oe y = O) L/ rJA Fh
li ” Wi t Rt Wi area (hereinafter referred to as the area)
Find both horizontal ends of as XMAX *XMIN,
Both ends in the vertical direction are determined as yMAX and yMIN.

(b) Next, Ma (XIMAX XMIN)/2+X
MIN#V””(yMAX Ym+N)/2+VMt
Perform the calculation of N to find 7.

(c) Any pixel information within the area (white or black information) P
(Xi * Move the Y1' point Q on the storage element of the image storage circuit -
) point.

(d) The above process (c) is performed on all pixels within the area.

The operation of such an image moving circuit is equivalent to moving the seed area to shorten the distance l from the base point (two points in this case) to the center of the area to liN without changing the size of the area.

FIG. 4(f) shows the image stored in the moving image storage circuit after this operation.

Next, the image in the reduction storage circuit and the haze image in the moving side 7-image storage circuit are added by an adder and stored in the composite image storage circuit. Finally, this composite image is printed by the image output device, and the image @oXl shown in FIG. 2 can be obtained.

In the above embodiment, the figure is reduced and the text appears at its original size. However, the present invention is not limited to this example. The remaining area may be left at its original size.

Further, in the above embodiment, an example was shown in which a reduced image is printed, but the present invention is not limited to this example, and the reduced image may be displayed on a display device such as a CRT.

In addition, the above embodiment has been explained using the case where the original image is reduced, but conversely, some characters or figures in the original image may be enlarged, and the remaining parts may be enlarged as they were or at a different ratio. ,
Alternatively, it may be reduced in size.

As described in detail above, the present invention converts an original image into a reduced or enlarged image, in which an image signal in a specified area in a registered image or a specified type 1 image signal and the remaining image are converted into a reduced or enlarged image. a signal processing means for processing the two divided image signals so that they each have a predetermined ratio of magnitude, and a signal processing means for synthesizing the two signal-processed mourning signals into one signal. and a means for reducing or enlarging the desired range or desired type of information of the image to be reduced or enlarged at a different desired ratio. This has the effect of providing the necessary information without waste.

[Brief explanation of drawings]

FIG. 1(a) is a diagram showing the original image, FIG. 1(b) is a diagram showing a reduced image obtained by a conventional device, FIG. Block diagrams of one embodiment of the invention, Figures Cm) to (F) are diagrams showing stored images of various parts for explaining the operation of this embodiment. In the figure, α is the original picture, (2), α→ is the figure, (14
, 06 are characters, (c) and (b) are reduced images, gradients,
(41 is the image input device, (41 is the image input device, (41 is the image input device, (
6) is an input image storage circuit, the ring is a display device, (goods) is a line segment detection circuit, (a) is a line segment storage circuit, (to) is a light pen,
(b) is an area detection circuit, - is an area storage circuit, - is a reduction circuit, 1 wheel is a reduction storage circuit, Shun is an image movement circuit, ia is a movement image storage circuit, 4 is an adder, and (Foundation) is a composite image storage The open circuit is an image output device. Note that the numbers in the figures indicate the same or corresponding parts. Agent Makoto Kuzuno (Outside 13) Figure 1 Figure 2 Figure 3 Figure 4 Figure 4 Continued Correction & (Voluntary) 1. =lGf1 (Linon7Jz
Retention I No. 57-78747! I<('+ connection with
Marunouchi, Tokyo, Tokyo, Il1-ku
Name (roff)U])', Hishiichiki Co., Ltd.
! 81'+lI+ (: 8 part 1 agent 11 1su [Tokyo, 111-ku Marunouchi-, I'l1
2 No. 35; 6 Detailed explanation of the invention in the specification subject to amendment 6 Contents of amendment (1) Specification, I (is corrected as follows. 299

Claims (2)

[Claims] (1) In an apparatus for converting an original image into a reduced or enlarged image, means for classifying an image signal within a specified area or a specified type of image signal in the original image and the remaining image signals; It is equipped with a signal processing means for processing the two divided image signals so that they each have a predetermined ratio of size, and a means for synthesizing the two image signals subjected to the signal processing to produce one image. Image processing device. (2) A means for discriminating and extracting figures in the original image, and a signal processing means for reducing the extracted figure signal to 1/H, and composing the reduced figure signal and the remaining character signals. An image processing device according to claim 1,