JPH04369155A - Copying machine with monitor display device - Google Patents

Abstract

PURPOSE:To avoid waste of copy paper till a copy with expected picture quality and to reduce the operation time by displaying a picture based on a digital picture data onto a display device and then executing the copy operation. CONSTITUTION:A picture signal outputted when an input section 1 reads an original is converted into a digital picture data by an A/D converter section 2 and a picture data decomposed into RGB signals is written in a frame memory 4 by a memory write section 3 and when the picture data is written in the memory 4, a display section 11 and a picture adjustment processing section 7 are operated. When the digital picture data is read from the memory 4 via a memory read section 8, the data is displayed on a monitor display section 13 by the display processing section 11. The operator visually confirms the picture image displayed on the display section 13 and when the copy of the displayed picture is desired, a copy button 40 is depressed. Thus, the copying is executed and an output section 14 discharges a copy sheet. Thus, no waste of copy paper is caused till an expected copy is obtained and the operation time is reduced.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is a copying machine with a monitor display device necessary for copying monochrome and color originals in design, advertising, flyer creation, general office work, etc. It is related to.

0002

[Background Art] When making a copy using a conventional copying device, an operator sets a copy document on a reading table and sets copy conditions such as input document size, magnification, output document size, contrast, color balance, and emphasis. After that, press the execute button to copy. Note that the copy machine operates automatically after the copy execution button is pressed until the copy is completed. Other conventional devices include a copying device that has a communication function added to it, receives and stores image data from the outside via a communication line, and is equipped with a monitor device that can display and edit the received image data. There are known copying devices that can.

0003

[Problem to be Solved by the Invention] In the conventional apparatus described above, copy conditions such as contrast and color balance are set and the copy execution button is pressed, but at this time, it is necessary to make sure that the copy condition settings are appropriate as a result. For example, the copy conditions are reset to emphasize or relax the inappropriate copy conditions, and the copy is executed. If the expected image quality is not obtained at this time, the copy conditions are set again. In other words, if the expected image quality cannot be obtained by copying, it is necessary to repeat the cycle of setting copy conditions and executing copy multiple times. Therefore, in the conventional apparatus described above, there is a problem that if the copying conditions are not appropriate, intermediate copies are wasted and it takes a long time to obtain a copy with the expected image quality.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a copying machine equipped with a monitor display device that does not waste copies and takes less time to obtain copies of the expected image quality. It is something to do.

[0005]

[Means for Solving the Problems] The present invention provides a display device which displays an image based on digital image data sent to a recording control unit on a display device after the input unit finishes reading an original and before the recording control unit copies an image based on digital image data sent to the recording control unit. After this display device displays an image based on the digital image data, the recording control section executes a copying operation.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a functional block diagram of a copying machine with a monitor display device, which is an embodiment of the present invention.

In this embodiment, the input section 1 is a section that reads a document, and the A/D conversion section 2 is a section that A/D converts the image read by the input section 1 into RGB digital image data. be. The memory writing unit 3 is a part that selects which frame memory to write into and writes the RGB digital image data when storing it in the first frame memory 4, second frame memory 5, and third frame memory 6. The first frame memory 4 is a portion that stores digital image data converted by the A/D converter 2, and is a so-called original image memory. 2nd frame memory 5
The third frame memory 6 stores digital image data obtained by modifying the digital image data converted by the A/D conversion 2, and is a so-called modified image memory.

[0008] The image adjustment processing unit 7 is a part that adjusts digital image data, and specifically, it is a part that adjusts the image by emphasizing or relaxing the vividness, brightness, and hue of the image. , the memory reading unit 8 reads the RGB digital image data into the frame memories 4, 5,
This section selects which frame memory to read from and controls the reading when reading from frame memory 6.

The operation panel 10 is an operation panel that houses various operation buttons, and a specific example thereof is shown in FIG. The operation control unit 9 manages the state of the operation buttons on the operation panel 10,
This is the part that performs control, executes button operations, and controls.

The display processing section 11 includes frame memories 4 and 5.
, 6 is a part that performs adjustment and display control when displaying an image based on the digital image data read out from the monitor display unit 13 on the monitor display unit 13. The recording control section 12 is a section that actually executes copying, and is a section that performs development, transfer, and printing from digital image data. The output unit 14 is a part that outputs copies.

Further, the input section 1 receives a copy condition setting signal and a read command signal from the operation control section 9, the image adjustment processing section 7 receives an image adjustment signal from the operation control section 9, and the memory reading section 8 Receiving an output switching signal from the operation control unit 9,
The recording control unit 12 receives a copy execution signal from the operation control unit 9. The memory writing section 3 receives a write command signal and a memory selection signal from the image adjustment processing section 7 , and the memory reading section 8 receives a read command signal from the image adjustment processing section 7 .

[0012] The monitor display unit 13 is for displaying images, and after the input unit has finished reading the original, the recording control unit copies the image based on the digital image data sent to the recording control unit. This is an example of a display device that displays the image before the image is displayed. The monitor display section 13 once displays an image based on the digital image data sent to the recording control section, and then displays an image based on the digital image data adjusted by the image adjustment processing section. Furthermore, the monitor display section 13 displays an image based on arbitrary digital image data among the digital image data stored in the memories 4, 5, and 6. Further, the operation control section 9 is an example of an operation control section that causes the recording control section to execute a copy operation after the display device displays an image based on digital image data.

FIG. 2 shows the operation panel 1 in the above embodiment.
It is a figure which shows the specific example of 0.

In this operation panel 10, a name tag 21 for setting copy conditions is a name tag indicating a part where basic conditions for copying are to be set. The LCD 22 displays the input size and output size, and the selection switch 23 is a two-point switch for selecting and setting the input size. When the upper side of the selection switch 23 is pressed, the input size scrolls down, and the selection switch 23 is used to scroll down the input size. This is a switch that scrolls up the input size when you press the bottom of 23. The sizes that can be specified as the input size are A6, B6, A5, B5, and A4.
, B4, and A3.

The selection switch 24 selects the output size.
This is a two-point switch for setting, and when the upper side of the selection switch 24 is pressed, the output size scrolls down, and when the lower side of the selection switch 24 is pressed, the output size is scrolled up. Note that the specified output size is A.
6, B6, A5, B5, A4, B4, A3.

The magnification display LCD 25 displays the magnification in percentages, and can be set from 50 to 400%. The same size button 26 is pressed to copy at the same size; when it is lit, the copy is made at the same size, and when it is off, the copy is made at an arbitrary magnification. The magnification change switch 27 is used to change the magnification displayed on the magnification display LCD 25, and when the magnification is changed by this magnification change switch 27, the designation of the selection switch 24 becomes invalid. In addition, magnification change switch 2
7 is a two-point switch, and pressing the upper side changes the magnification direction, and pressing the lower side changes the magnification direction in the reduction direction.

The reading button 28 is a switch that starts reading the original. When it is lit, it indicates that the reading operation is in progress, and when it is off, it indicates that the reading operation is not in progress. It shows.

The display switching button 29 is a button for selecting an image to be displayed on the monitor display section 13, and is used to display pre-adjustment base image data when the pre-adjustment value designation button 34 is pressed. In other words, when the display switching button 29 is lit, it is possible to switch between "display 1", "display 2", and "display 3", and when the image adjustment processing section 7 is operating, image adjustment is possible. When the process is stopped and the display switching button 29 is turned off, this indicates that the image adjustment processing section 7 is in operation. Note that "Display 1,""Display2," and "Display 3" are images based on data stored in the first frame memory 4, second frame memory 5, and third frame memory 6, respectively.

The display LCD 30 for display switching displays which image data is currently displayed on the monitor display section 13, and specifically, the display switching screen 30 displays which image data is currently being displayed on the monitor display section 13. 5. When images based on data stored in the third frame memory 6 are displayed on the monitor display section 13, "Display 1", "Display 2", and "Display 3" are displayed respectively. Ru. The selection switch 31 regarding display switching is "Display 1" and "Display 2".
” and “Display 3”, and is valid only while the display switching button 29 is lit.

The image adjustment name tag 32 is a name tag indicating the part to be adjusted, and the adjustment designation button 33 is a button used when starting image adjustment. When the adjustment designation button 33 is lit, , vividness, brightness, and hue ranges, and when the adjustment designation button 33 is off, it indicates that range selection, setting operations, etc. are impossible.

[0021] The pre-adjustment value display button 34 is displayed on the display LCD 30.
This button displays the original image data of the image data displayed in , and the adjustment range information at that time.When the pre-adjustment value display button 34 is lit, "Display 1" regarding the original image data ”, “Display 2”, or “Display 3” is displayed on the LCD 35, and the display switching button 29 and the adjustment designation button 33 are pressed.
operations are locked. When the pre-adjustment value display button 34 is off, the state display is restored to the state before the light was turned on, and the display switching button 2 is turned off.
9. The operation of the adjustment designation button 33 is unlocked.

The adjustment value specification range LCD 35 is an LCD that displays the degree of vividness, brightness, and hue of the image. The degree of color is -5 to +5 (0 is standard), and the degree of hue is -180 to 180 (0 is standard).
is the standard) degree.

The brightness selection/setting switch 36 is a two-point switch for selecting and setting the degree of brightness.
When the switch 36 is pressed upward, the color changes to emphasize the vividness, and when the switch 36 is pressed downward, the color changes to the direction of relaxing the brightness. The brightness selection/setting switch 37 is a two-point switch for selecting and setting the brightness level.
When pressed upwards or downwards, the direction is brighter or brighter, respectively.
Changes to a darker direction. Color selection, setting switch 38
is a two-point switch for selecting and setting the degree of hue, and when the setting switch 38 is pressed upward or downward, the color changes toward bluer or redder, respectively.

The specification end button 39 is a button to be pressed when the image adjustment work using the LCD 35 is completed.If the specification end button 39 is lit, the image adjustment work is completed and the image adjustment processing section 7 indicates that it is operating, and when the specification end button 39 is off, it indicates that the image adjustment processing section 7 is not operating.

The copy execution button 40 is a switch that operates the recording control unit 12 to create and output a copy. When the copy execution button 40 is lit, it indicates that a copy is being created and output. If the copy execution button 40 is off, it indicates that no copy is being created or output.

Next, the operation of the above embodiment will be explained.

FIG. 3 is a flowchart showing the operation of the above embodiment.

First, when making a copy using the copying machine, the operator sets basic copy conditions such as the input document size, magnification, and output copy size by operating the selection switch etc. on the operation panel 10 (S1 ), set the original to be copied on the input table (S2), and press the read button 28 (S2).
3). As a result, the input unit 1 reads the original.

The A/D conversion section 2 converts the image signal outputted when the input section 1 reads the original into digital image data, and the image data decomposed into RGB is stored in the memory writing section 3.
When the image data is written into the frame memory 4 and the image data is written into the first frame memory 4, the display processing section 11 and the image adjustment processing section 7 operate.

When the digital image data is read out from the first frame memory 4 via the memory reading section 8, the display processing section 11 adjusts the number of displayable pixels of the monitor display section 13, and displays the data on the monitor display section 13. indicate. The monitor display unit 13 has, for example, 512 pixels in the horizontal direction and 400 pixels in the vertical direction.
Pixel display is possible, and CRT of approximately 6 to 12 inches
Or an LCD display is used. At this time, the display switching button 29 is not turned on, and an image (original image) based on the data stored in the first frame memory 4 is displayed on the monitor display section 13 (S4).

For example, the image adjustment processing section 7 adjusts the image by emphasizing and relaxing the image data using a method similar to that shown in Japanese Patent Application No. 3-35,693. That is, the digital image data is read out from the first frame memory 4 via the memory reading unit 8, the RGB digital image data is subjected to color space coordinate conversion, and the saturation (S), lightness (L), and hue (H) are adjusted. It is decomposed into components, a histogram of saturation (S) and lightness (L) is taken, and the dynamic range is determined. Then, determine the adjustment range for saturation and brightness. Regarding the range width, there is a method of dividing the range from the reference point to the maximum emphasis at equal intervals or logarithmic intervals.
A method of equal division is adopted. In addition, the vividness of the image adjustment corresponds to the saturation, the brightness corresponds to the lightness, and the hue corresponds to the hue.

Regarding the range memory, for vividness, set maximum emphasis to "+5", maximum relaxation to "-5",
No adjustment corresponds to "0 (standard)". Regarding brightness, maximum emphasis corresponds to "+5", maximum relaxation corresponds to "-5", and no adjustment corresponds to "0 (standard)". As for hue, since it is hue rotation, it has a memory of "-180" degrees to "+180" degrees, and "0" degrees corresponds to standard (no adjustment).

In the image adjustment processing section 7, ranges are set as follows for image adjustment. The maximum emphasis of vividness and brightness is set to "+5" for vividness and "+5" for brightness, and the state where nothing is adjusted (no adjustment) is set for "0 (standard)" for vividness and "0 (standard)" for brightness. The hue is "0", the width of the maximum relaxation is the same as the maximum emphasis, the saturation is "-5", and the brightness is "
-5”.

[0034] Then, the vividness is "+1" and the brightness is "+1".
”, the image data emphasized to a hue of “0” degree is written into the second frame memory 5 by the memory writing unit 3. In the third frame memory 6, the memory writing section 3 writes relaxed image data with a vividness of "-1", a brightness of "-1", and a hue of "0". When the image data is written to the first frame memory 4, second frame memory 5, and third frame memory 6, the display switching button 29 lights up to notify the operator that display switching is now possible. In addition, the vividness "0 (standard)" on LCD35,
Displays range information for brightness "0 (standard)" and hue "0 (standard)".

[0035] The operator visually confirms the image displayed on the monitor display section 13, and if the operator wishes to copy the displayed image as is (S5), the operator presses the copy execution button 4.
Press 0 (S6). As a result, the recording control section 12 operates, executes a copying operation, and the output section 14 discharges the copy. Even if the display switching button 29 is not lit, if an image is displayed on the monitor display section 13, pressing the copy execution button 40 is valid (S7). Note that the method of converting RGB image data into CMY is known as a publicly known technique.

On the other hand, if the image displayed on the monitor is insufficient in S5, that is, if the operator does not like the original image, "Display 2" (corrected image stored in the second frame memory 5), ""Display3" (the modified image stored in the third frame memory 6) can be viewed. In this case, the operator presses the display switching button 29 (S8) to change the content displayed on the monitor display section 13.
Change to “Display 2” or “Display 3”. Then, when the selection switch 31 is pressed to display "Display 2" on the LCD 30, an image based on the image data (corrected image data) in the second frame memory 5 is displayed on the monitor display section 13 by the display processing section 11. . Similarly, set "Display 3" to LC
When displayed on the D30, an image based on the image data (corrected image data) in the third frame memory 6 is displayed on the display processing unit 1.
1 is displayed on the monitor display section 13 (S9).

The operator checks the images based on the image data of "Display 2" and "Display 3" displayed on the LCD 30 on the monitor display section 13, and if satisfied with either image (S10), By pressing the copy execution button 40, the recording control unit 12 operates, and the "Display 2" or "Display 3" is displayed.
”, and the copy is ejected by the output unit 14.

[0038] If the operator is dissatisfied with the image displayed on the monitor display section 13, the operator can
While viewing the image corresponding to ", it is determined whether or not to perform image adjustment (S11). In addition, "Display 2"
is an image with "Display 1" slightly emphasized, and "Display 3"
is a slightly relaxed image of "Display 1". In this way, the operator can compare "Display 2" and "Display 3" and use this as a basis for determining which direction the image adjustment should be made.

When performing image adjustment, the operator determines which of the displayed images will be used as image data that will be the basis for image adjustment (S12). and,"
The selected number among ``Display 1'', ``Display 2'', and ``Display 3'' is displayed on the LCD 30 using the selection switch 31. The image data selected in this way is displayed on the monitor display section 13 by the display processing section 11. The operator presses the adjustment designation button 33 to turn it on (S13), thereby enabling the selection switches 36 to 38 to be operated.

When the operator selects and determines “Display 1” (original image) as the base for image adjustment, the adjustment designation button 33
By pressing , the LCD 35 will display ``0 (standard)'' saturation, ``0 (standard)'' brightness, and ``0 (standard)'' hue.
range information is displayed. In this state, when the operator presses the pre-adjustment value display button 34 to turn it on, range information regarding the image adjustment of the image data of "Display 1" is displayed. The image data of "Display 1" is the image data of "Display 1" itself, with a vividness of "0 (standard)" and a brightness of "0 (standard)".
"Standard)" and the color tone "0 (Standard)" are displayed, and furthermore, "Display 1" is displayed on the LCD 30 of the display switching button 29.

When the operator selects and determines "Display 2" as the base for image adjustment, by pressing the adjustment designation button 33, the brightness "0 (standard)" is displayed on the LCD 35.
, brightness "0 (standard)", and hue "0 (standard)" range information is displayed. In this state, when the operator presses the pre-adjustment value display button 34 to turn it on, range information regarding the image adjustment of the image data of "Display 2" is displayed. The image data of "Display 2" is the image data of "Display 1" subjected to image adjustments of "+1" brightness, "+1" brightness, and "0 (standard)" hue, so the vividness is "
+1,” brightness “+1,” and hue “0 (standard).” Furthermore, “Display 1” is displayed on the LCD 30 of the display switching button 29.
" is displayed. In other words, it indicates to the operator that the reference point for image adjustment has been shifted in the direction of image enhancement.

When the operator selects and determines "Display 3" as the image adjustment base, by pressing the adjustment designation button 33, the brightness "0 (standard)" and the brightness "0 (standard)" are displayed on the LCD 35. , range information for the hue "0 (standard)" is displayed. In this state, the operator presses the pre-adjustment value display button 34.
When pressed and lit, the specified range information for image adjustment of the image data of "Display 3" is displayed. The image data of "Display 3" has a brightness of "-1" and the image data of "Display 1".
Since the image has been adjusted with brightness "-1" and hue "0 (standard)", vividness "-1" and brightness "-1"
”, and the color “0 (standard)” is displayed. Furthermore, "Display 1" is displayed on the LCD 30 of the display switching button 29. That is, it indicates to the operator that the reference point for image adjustment has been shifted in the direction of image relaxation.

While the pre-adjustment value display button 34 is lit, the operation of the display switching button 29 and the image adjustment range information selection switch 3
Operations 6 to 37 are locked and cannot be operated. When the pre-adjustment value display button 34 is pressed to turn off the light, the lock is released and operation becomes possible, returning to the display state before the pre-adjustment value display button 34 was turned on.

The operator operates the image adjustment range selection switches 36 to 38 to specify the vividness, brightness, and hue ranges (S14). For example, if the operator wants to emphasize the image a little more, the vividness increases by +1.
”, brightness “+1”, and hue “+2”, the operator confirms that “Display 2” is displayed on the LCD 30 of the display switching button 29, and then presses the adjustment specification button 3 of the image adjustment.
Press 3 to turn it on, and use the range selection switches 36 to 38 to set the vividness to "+1", the brightness to "+1", and the hue to "
+2”.

When the setting is completed, the operator presses the specification end button 39 (S15). As a result, the display switching button 29
goes out, and the image adjustment processing section 7 is operated. The image adjustment processing section 7 reads the image data from the second frame memory 5 using the memory reading section 8, converts the RGB image data into color space coordinates, and converts the RGB image data into components of saturation (S), brightness (L), and hue (H). The dynamic range is determined by taking a histogram of saturation (S) and lightness (L). Then, the adjustment range widths are determined for each of saturation (S) and lightness (L). With respect to the determined range width, image data is emphasized (adjusted) in a range specified by the operator, converted into RGB image data, and written into the third frame memory 6 via the memory writing section 3. Then, the display processing section 11 is operated to display an image on the monitor display section 13. At the same time, the display switching button 29 is turned on and the LCD 30 displays "Display 3".
" is displayed to notify the operator that image adjustment has been completed and image display switching is now possible. Furthermore, adjustment designation button 3
3. The specification end button 39 turns off.

If the operator turns on the display switching button 29 during image adjustment, the operation of the image adjustment processing section 7 is stopped. In this case, the contents of the image data in the third frame memory 6 are not guaranteed.

Regarding the result of image adjustment, when "Display 1" is used as the base for adjustment, the result of adjustment is stored alternately in the second frame memory 5 and the third frame memory 6. If "Display 2" is used as the base for adjustment, the result of adjustment is
The data is stored in the third frame memory 6. When “Display 3” is used as the base for adjustment, the result of adjustment is stored in the second frame memory 5. The image data in the first frame memory 4 is
It is held until the read button 28 is next pressed or the copying machine is turned off.

[0048] Then, the operator selects the displayed "Display 3"
If it is determined that the image in "Display 3" is acceptable for copying, the copy execution button 40 is pressed to turn it on. As a result, the recording control section 12 operates to execute copying, and the output section 14 discharges the copy.

Furthermore, if the operator wishes to continue the image adjustment, the operator executes the steps from S12 onwards.

In the above embodiment, the first frame memory 4, the second frame memory 5, and the third frame memory 6 store different image data, and the image data in the first frame memory 4 is the so-called original image. , is an image that has not undergone any adjustment, and the image data in the second frame memory 5 is stored in the first frame memory 4 based on the original image.
The range width is ``+'' for vividness and brightness, respectively.
This is image data with emphasis of ``1''. Conversely, the image data in the third frame memory 6 has a vividness of "+1", a brightness of "+1", and a brightness of "+1" based on the image in the second frame memory 5.
This is image data that has been enhanced with a hue of "+2".

Regarding the range width of vividness and brightness adjustment, in the case of the first frame memory 4, no adjustment is in the range "0 (standard)", and maximum emphasis is in the range "+5". In the case of the second frame memory 5, the point of the range "0 (standard)" is shifted to the range point "+1" in the case of the first frame memory 4. Then, range “0 (
The expression of maximum emphasis "+5" remains unchanged from "Standard)", but
The range width is reduced to 4/5 times that of the image data in the first frame memory 4. That is, the width of the adjustment range becomes smaller, and finer adjustment can be made compared to the first frame memory 4.

Regarding the third frame memory 6, the range width of the second frame memory 5 is 4, as described above.
/ It has shrunk five times. In other words, the second frame memory 5
It is possible to make more detailed adjustments than the image data. This is a characteristic element in the image adjustment of the above embodiment. In addition, a simple operation panel as shown in FIG. 2 is used to facilitate image adjustment and confirmation.

[0053]

According to the present invention, there is no wastage of copying until a copy of the expected image quality is obtained, and the time required to obtain a copy of the expected image quality is short.

[Brief explanation of drawings]

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

FIG. 2 is a diagram showing a specific example of the operation panel 10 in the above embodiment.

FIG. 3 is a flowchart showing the operation of the above embodiment.

[Explanation of symbols]

1...Input section, 2...A/D conversion section, 3...Memory writing section, 4...first frame memory, 5...Second frame memory, 6...Third frame memory, 7...Image adjustment processing section, 8...Memory reading section, 9...operation control unit, 10...operation panel, 11...display processing section, 12... Recording control unit, 13...Monitor display section, 14...Output section.

Claims (3)

[Claims] 1. A copying apparatus in which an input section reads a document as an image signal, an A/D conversion section converts the image signal into digital image data, and a recording control section performs copying based on the digital image data. a display device that displays an image based on the digital image data sent to the recording control section after the reading operation of the original by the input section is completed and before the recording control section copies; A copying apparatus with a monitor display device, comprising: an operation control unit that causes the recording control unit to execute a copying operation after displaying an image based on the digital image data. 2. In claim 1, an image adjustment processing section for adjusting the digital image data is provided between the input section and the recording control section, and the display device transmits data to the recording control section. 1. A copying machine with a monitor display device, wherein an image based on the digital image data that has been adjusted is once displayed, and then an image based on the digital image data that has been adjusted by the image adjustment processing section is displayed. 3. The display device according to claim 2, further comprising a memory for storing digital image data converted by the A/D conversion section and a plurality of digital image data adjusted by the image adjustment processing section. A copying machine with a monitor display device, characterized in that it displays an image based on arbitrary digital image data among the digital image data stored in the memory.