JPS63141450A - Picture editing device - Google Patents

Abstract

PURPOSE:To attain picture synthesizing without using any picture memory by providing an editer attribute designating write disable to an output device and sending a write disable signal to the output device synchronously with a picture data in the case of picture synthesis. CONSTITUTION:At first SWs 16, 17 are turned on to inform the start of synthesis edit to a CPU 3. Then the attribute information to the background of the original is set via the CPU 3 by using a proper input means on the operation panel 15 next. In applying scanning as the entire intermediate tone, it is formed in a background picture memory as a recording medium applying scanning. After the scanning is finished, the CPU 3 inhibits (d0=phi) the content of recording to an attribute memory 8 and applies the trimming edit of the original. The rewrite of the attribute memory 8 is attained even with inhibited recording. Then the trimmed part is set to a proper attribute (d0=1) to apply scanning. In this case, the information d0 is sent to a recorder synchronously with the picture output to obtained the synthesizing picture subject to superimposition.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an image editing device having an image composition function.

(Prior Art and Problems to be Solved by the Invention) Some monochrome image readers are equipped with attribute memory in order to be able to perform various editing functions without having a large image memory. Patent application 1986-24.8
(See No. 36). Attributes of image data are stored in an attribute memory, and various edits are performed in real time by editing this attribute data. Color images cannot be edited with this image reader.

For color images, there is a method that specifies an area on the document using a specified color for each scanning line, and performs image editing (masking, black/red color conversion) within that area in real time (
(See Japanese Unexamined Patent Publication No. 58-60875). However, complex editing such as changing the editing mode for each area is not possible.

An object of the present invention is to provide an image editing device that can perform image composition without using an image memory.

(Means for Solving the Problems) An image synthesizing device according to the present invention includes a density reading means for reading an image using an image sensor, and an output device to set an editing attribute including an attribute for specifying write prohibition to an image. an attribute setting means for setting each predetermined area of the image data, an attribute storage means for storing the editing attributes set by the attribute setting means, an image composition instruction means for instructing the composition of images, and an attribute storage means for storing the editing attributes set by the attribute setting means; The data of the image read by the density reading means is edited in accordance with the editing attribute and outputted to the output device, and when the image compositing instruction means instructs to combine the images, an attribute that specifies write prohibition is specified. and image editing means that transmits a write inhibit signal to the output device in synchronization with the image data when outputting the image data, and outputs the image data to the output device having an overwritable storage medium. .

(Function) It has an editing attribute that specifies write prohibition for the output device, and when compositing images, transmits the write prohibition signal to the output device in synchronization with the image data.

As a result, the output device does not write image data to the area of the overwritable recording medium (buffer memory, etc.) for which write protection has been received.

As described above, composite editing is performed without a limit on the number of times.

(Example) Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

(a) Color image editing using attribute memory In this embodiment, an image is divided into areas of, for example, +mmXlmm, and attributes such as binary/halftone for each area are written in the attribute memory for editing.

The attribute data to be written to the attribute memory is 8 pits (d7.
d, . . . , do), and each bit indicates the attribute information shown in Table 1. That is, d7
indicates a solid color fill. d6 instructs to invert the output signal. d5 instructs whether to perform binary processing or dither processing depending on the color density of the read pixel. d4 specifies whether or not to print in monochrome mode.

d3 to d1 specify colors for (1+, d4) and perform color correspondence as shown in Table 2. do requests the output device to prohibit recording on the recording medium.

Table 1 Attribute information d7: Invalid pixel/valid pixel do2 Inverted/non-inverted d5: Binary/halftone d4: Fixed color/normal do= Output prohibited Table 2 Single color specification (color code) d, d2
d. Specified color 000 White 001 Yellow 0 1 0 Magenta 011 Red 1 0 0 Cyan 101 Green 110 Blue Using the attribute memory explained above, editing such as masking, trimming, specified color single color mode, full color halftone mode, etc. can be performed. . An example will be explained using FIGS. 2 and 3.

Now, read a color original as shown in Figure 2, and
Suppose we want to process and output each part of F as follows. That is, part A is a full-color halftone part.

Portion B is a single-color halftone portion, and here blue is specified as the color, so even if the intermediate portion of the document is a full-color photograph, it is reproduced as a blue halftone.

Part 0 is a multicolor character part, and one of the eight colors shown in the color code is selected for each pixel. This mode is effective for reproducing text in multicolor printing.

Section D is a monochrome character section, and here black is selected as the designated color.

Part E is a part that reproduces white characters. Here, red is selected as the background color.

Section F is a section filled with a designated color, in which yellow is selected here.

At this time, data may be written in the attribute memory as shown in FIG.

At the time of output, as will be explained later, part A is subjected to full-color halftone processing, part D is subjected to binary processing, etc.
Processing is performed on an area of mmXlmm units in accordance with the data in the attribute memory and output.

(b) Color Image Editing Apparatus FIG. 4 schematically shows image reading by the color image editing apparatus. Light emitted from a fluorescent lamp (2), which is an exposure source, illuminates the original (102) on the original glass (10]), and the reflected light enters the C0D (1) through an optical system (not shown). CCD (1) is equipped with a filter that selectively transmits three colors, red, green, and blue, for each pixel, and C0D (+) is equipped with a filter that selectively transmits three colors, red, green, and blue.
Outputs the reflected light intensity as a result of color separation.

These fluorescent lamps (2), optical system, and C0D (1) are one unit, and a drive system (scanner) (not shown)
As shown by the arrow, the scanner moves at a constant distance from the original glass (101) and scans the original (to 2). Control of this drive system may be performed by the CPU (3) shown in FIG. 5, or a separate CPU may be provided.

Note that a reference white plate (1,03) is provided on the original glass (101) outside the original area (J).

The color signal information regarding the original document (102) obtained in this way is output to a color printer device 7, an image memory device, etc., which serve as a recording medium, through a processing system having a block configuration as shown in FIG.

Image editing attributes are instructed by the operation panel (15), and attribute data is stored in the attribute memory (8) via the CPU (3).
is memorized. An output signal is obtained from the color signal obtained from C0D(1).

First, the reference white plate (10
CP while obtaining the output of C0D(1) for 3)
U (3) instructs the line RAM (6a, 6b, 6c) to write the image signal. CP'U (3) refers to this content and determines that the maximum value of the signal is R (red), G (green),
The reference voltage (V, .f) of the A/D converter (4a, 4b, 4.c) of each color is set constant for each color of B (blue).
R4”refG, VrefB).

After setting V refR, G and B, line RAM (6a
, 6b.

The data written in 6c) is held as reference data for shading correction. Now, when the scanner enters the document area, the CPU (3) uses the fluorescent lamp (I
Set the exposure amount of O+). Each color signal under such exposure amount is transmitted to an A/D converter (4, a, 4-
b, 4-c) are converted into digital values, and after shading correction processing is performed by the shading circuits (5a, 5b, 5c), the signals are input to the color processing circuit (7). The color processing circuit (7) outputs the signal Y9 after performing masking correction processing according to the ink characteristics of the output printing device.
Generate M and C. If the output device is a printer that performs side-by-side printing, it is advantageous in terms of memory reduction to repeat the scan for the number of print colors and output the necessary output signal (Y, M, or C) for each scan. It is. (Here, the explanation is given in the format of the above-mentioned screen sequential output, but Y
. ) Of the J signals output from the color processing circuit (7), any one of Y, M, and C is shown as a "color mode signal" in FIG.

Additionally, the color density average (or weighted average) of red, green, and blue is simultaneously calculated and output as a monochrome mode signal. This corresponds to the density signal when the original is treated as monochrome. Both of the above-mentioned "color mode signal" and "monochrome mode signal" are input to the selector (9).

Bit d4 indicating attribute memory information of the position corresponding to the current document reading position is given to the selector (9) as a select signal, and in the case of d4-φ, a monochrome mode signal is transmitted downstream, and d4=1 In this case, a color mode signal is transmitted.

The dither ROM (11) generates halftone threshold values, and the threshold values are generated at a matrix period of (mXn). The selector (10) selects the data from the dither ROM (II) and the binary threshold information according to the attribute information d5, and sends them to the comparison circuit (12). A comparison circuit (12) compares the signal (image signal) from the selector (9) and the signal (threshold information) from the selector (10).

Further, d7 and d4 to d+ are input to the comparison circuit (I2) as control signals. Here, ■d7−φ, d
If it is 4-φorl, the output of the comparator circuit (12) will always be a constant value according to the color code. For example, if you are currently scanning to obtain a Y signal, if d, =], the output of the comparison circuit will be "1", and d.

-φ, the output will be φ”.■d7=I, d4-φ
If the bit of the color code related to the print color to be scanned is 1, the comparison result is output as is, and if the bit is φ, the output of the comparison circuit (12) is “φ”. (2) If d, -1, d, = 1, output the comparison result as is. The inverted data is also sent to the selection output circuit (14) via the inverter (13). The selection output circuit (14) outputs inverted or non-inverted data to a printer device and a memory device (not shown) in synchronization with the valid image signal from the CPU (3) according to d6.

(c) Image composition Next, attribute information d. (Composition) function will be explained.

With this information, it is possible to easily obtain an image that is a composite of multiple originals. To start and end composite editing, press sw (16
) to give instructions to the CPU (3).

In the following, a case where an image C is obtained by combining two originals a and b as shown in FIG. 6 will be explained as an example.

There are two ways to obtain a composite image: when the recording medium cannot be overwritten by fixing toner on paper, and when the memory device (
When overwriting information (such as in the buffer memory of an output device), there is a slight difference in the case where only the information written later is valid. In the former case, the method of recording from the foreground to the background (a
In the latter case, the method (method b) in which recording proceeds from the background to the foreground is determined by the CPU's processing of the attribute memory.

Therefore, a selection switch is provided like 5W (17) in Fig. 5, and the user can select, for example, method a if 5W (17) is OFF, and method b if 5W (17) is ON. Allow choice.

<c-]> First, the former method will be explained with reference to FIG.

SW(] I6 is oNL (SW(17) is OFF), and when the start of composite editing is notified to CPU(3), CP
U (3) sets the attribute memory (8) entirely in "white" as shown in FIG. 7(a). Initialize it to -1.

Next, using an appropriate input means (not shown) on the operation panel (15), attributes are set for the portion of the first document (foreground) a that has been trimmed (FIG. 7(b)).
). Here, the main part of document a is set to halftone full color.

When a scanning operation is performed once in this state, an image as shown in FIG. 7(c) is formed on the recording medium. After this scan operation is completed, the CPU (3) automatically prohibits recording (do-φ) of the contents of the attribute memory (8) in the non-white portion that has been edited, as shown in Fig. 1(d). do.

Next, the second manuscript (background) b is edited, but at this time, the CPU (3) is in d. For areas set to -φ, the attribute memory (8) is not rewritten. In other words, there is no need to be aware of the area where image formation was performed last time in the next edit. For example, even if the original is set to halftone full color on the entire surface, the contents of the attribute memory will be as shown in Figure 7(e).
It is set as follows.

When a scanning operation is performed on the same recording medium on which image formation was previously performed in such a state, an image is formed as shown in FIG. 7(f). As a result, a composite image C shown in FIG. 6 is obtained.

Here, the information of do is also input to the selection output circuit (14), and in the case of do-φ, the selection output circuit (I4)
φ (no printing) is always output.

In this example, after two scans, d is applied to the entire attribute memory area. −φ. However, the color area (φ1×φφφφ
If 1) remains, compositing can be performed an unlimited number of times by trimming the second and subsequent edits.

To exit this composition mode, turn off 5W (16).
'do it.

Next, synthetic editing will be described when the recording medium of the output device is a memory device (buffer memory) that can be overwritten.

In the case of a memory device, if you write "white" on an area where an image has been written once, that area will be rewritten to "white". Therefore, the above method cannot be applied as is. Therefore, d. The memory device that transmits data in synchronization with the output is d. If -1, the image output is written into the memory d. If -φ, writing is prohibited and previously written information is retained.

Other points are based on the case where paper is used as the recording medium described above.

<c-2> Composition method according to the present invention The above method repeats recording from the foreground to the background, but if you overwrite it like a memory device (buffer memory of an output device), it will be recorded later. If the written information is valid, it is also possible to repeatedly overwrite the information starting from the background and synthesize the information.

A composition method in which recording proceeds from the background to the foreground will be described below with reference to FIG.

First, 5W (16) and 5W (17) are ONI, and the start of composite editing is transmitted to the CPU (3). Next, the operation panel (
Attribute information for document b (background) is set via the CPU (3) using an appropriate input means (15).

(Figure 1(a)). Here, the entire image is halftone. If a scan operation is performed in this state, the recording medium will be damaged as shown in Figure 1 (
An image (background) as shown in b) is formed on the memory.

After completing this scan, the CPU (3) automatically writes the contents of the attribute memory (8) over the entire surface as shown in FIG. 1(c).

Initialize with -φ (recording prohibited).

Next, trimming editing is performed on the document a. At this time, the attribute memory (8) can be rewritten even if d, -φ. In this way, for manuscript a, Figure 1 (
An attribute memory (8) as shown in d) is generated. Well, the trimming part is d. -1, and an appropriate attribute mode (here, halftone) is set. A scanning operation is performed on document a in the state of this attribute memory. At that time, d in synchronization with the image output. information is also transmitted to the recording device.

The recording device is d. -1, the image output is shown in Figure 1 (b
) over the image. (Write the image as shown in Figure 1(e).) Conversely, d. If it is -φ, writing is prohibited. In this way, a composite image C of manuscripts a and b (Fig. 6)
is formed.

In this case as well, by repeating the same editing work, composite editing can be performed with no limit to the number of times.

To exit this synthesis mode, press 5W (16) or"
All you have to do is shift F.

(Effect of the invention) No working memory is required for synthetic editing.

The user only has to repeat trimming and editing.

[Brief explanation of the drawing]

Figure 1 (a), (b), (c), (d)
, (e) are diagrams sequentially showing image synthesis. FIG. 2 is a diagram of an example of color image editing. FIG. 3 is a diagram of attribute data stored in the attribute memory. FIG. 4 is a diagram of an optical system for reading a document. FIG. 5 is a block diagram of the image data processing circuit. FIG. 6 is a diagram of an example of image composition. Figure 7 (a), (b), (c), (d)
, (e) and (f) are diagrams sequentially showing image synthesis. 1...COD, 3...CPU death/
- Attribute memory, 15...operation panel. Patent applicant: Minolta Camera Co., Ltd. Agent: Patent attorney: Mr. Hao and two other people Figure 1 (a) Edited by a literary figure (b) '@7 Figure 7 (0) Layer Changsho memory @ Kaikai (b) Tuan al; against silk ship (C) 7th time Susman'i's painting sand ( f) 2nd Sukiman's Changi Valley

Claims (1)

[Claims] (1) Density reading means for reading an image using an image sensor; Attribute setting means for setting editing attributes including an attribute for specifying write prohibition for each predetermined area of the image on an output device; and Attribute setting means an attribute storage means for storing the editing attributes set by the image combination instruction means for instructing image composition; and an image composition instruction means for storing the editing attributes set by the attribute storage means; When data is edited and output to an output device, and image composition is instructed by the image composition instruction means, a write prohibition signal is set as the image data when outputting image data having an attribute specifying write prohibition. An image editing device that outputs image data to an output device that has an overwritable storage medium, and includes an image editing device that synchronously transmits image data to an output device.