JP4279261B2 - Image display device and display control program - Google Patents

Description

  The present invention relates to an image display apparatus and a display control program that divide and display image data.

An image that allows you to check what images are to be formed and in what order before starting copying when different images are continuously formed, such as the page continuous shooting mode and the enlarged continuous shooting mode. A forming apparatus is known (see, for example, Patent Document 1). This is because when the page continuous shooting mode is set from the operation unit, and then the preview key is pressed and the image reading key is pressed, the image data to be output to the printer unit is output to the preview processing unit, and the output image is displayed on the screen. Is displayed. At this time, output images are displayed in the same order as the output order at the time of copying, and batch display of output images can also be selected.
JP 09-093378 A

By the way, when it is desired to divide a page into a plurality of pages and to enlarge and check the contents, it may not be necessary to display all the divided pages. For example, when the user wants to confirm the contents of one page in a document, it is not necessary to confirm a portion where no image is displayed, and therefore the necessity for displaying may be low.
However, since the apparatus described in Patent Document 1 displays all the divided pages, there is a problem that a wasteful display operation must be performed.

  SUMMARY An advantage of some aspects of the invention is that it provides an image display device and a display control program capable of improving user operability and reducing processing time.

  The present invention is an image display device that divides image data into a plurality of images for display, storage means for storing image data to be displayed, division number specifying means for specifying the number of image divisions, and the image data. An image dividing unit that divides based on the number of divisions and defines the same number of divided areas as the number of divisions, and obtains a printing rate for each divided region, and generates a printing rate table that defines the printing rate for each divided region. And a divided area image display means for selecting and displaying an image of one divided area among the divided areas based on a printing rate for each divided area defined in the printing rate table. It is provided with.

  The present invention is further characterized by further comprising a printing rate display means for displaying the printing rate of each divided region in steps with reference to the printing rate table.

  The present invention is a display control program for controlling image display in an image display device having a storage means for storing image data to be displayed in order to divide and display image data. A division number specifying process for specifying, an image dividing process for dividing the image data based on the division number, defining the same number of divided areas as the division number, and determining a printing rate for each of the divided areas; An image of one divided area among the divided areas based on a table generation process for generating a printing ratio table that defines a printing ratio for each division and a printing ratio for each divided area defined in the printing ratio table. And a divided area image display process for selecting and displaying the image.

  The present invention is characterized in that, by referring to the print rate table, a print rate display process for displaying the print rate of each divided region stepwise is further performed by a computer.

  According to the present invention, when the image data is divided into a plurality of areas and displayed, the printing rate of each divided area is displayed stepwise, so that each divided area is displayed based on the printing rate of each divided area. An image can be displayed, and the user can easily check the divided display image without performing a wasteful display operation.

  Hereinafter, an image display device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the embodiment. In the present embodiment, a case where the image display apparatus is an image forming apparatus will be described as an example. In this figure, reference numeral 1 denotes a control unit that controls the overall processing operation of the image forming apparatus. Reference numeral 2 denotes an input unit composed of a numeric keypad, function keys, a touch panel, and the like. Reference numeral 3 denotes a display unit composed of a liquid crystal display or the like. Reference numeral 4 denotes a scanner that reads an image of a document placed on a document table. Reference numeral 5 denotes an image memory that temporarily stores image data obtained by the scanner 4 or the like. Reference numeral 6 denotes a printing unit that prints this image on printing paper based on the image data stored in the image memory 5. Reference numeral 7 denotes a divided display processing unit that divides an image to be printed, enlarges it, and displays it on the display unit 3. Reference numeral 8 denotes a communication unit that receives print data from a host computer (not shown) and stores it in the image memory 5.

  Next, the operation of the divided display processing unit 7 shown in FIG. 1 will be described with reference to FIGS. FIG. 2 is a flowchart showing the operation of the divided display processing unit 7 shown in FIG. FIG. 3 is a diagram illustrating an example of a split display screen displayed on the display unit 3 when the split display process is performed. Here, the original image data G read by the scanner 4 will be described as an example. This original image data G is one image data, and when divided into 4 × 4 16 areas, an area where an image exists (portions A to G shown in FIG. 3) and an area where no image exists (shown in FIG. 3). It is assumed that there is a blank part). Here, “image does not exist” means that the entire area of the divided area is a single color, not necessarily when the entire area is white, but the entire area during monochrome printing is black and the entire area during color printing. Is red or green. The printing rate table T is a table that stores the printing rate value of the area where the image exists (portions A to G shown in FIG. 3) for each divided area. The printing rate here is the ratio of characters and images to the total area of the divided area where the image exists, and is expressed as a percentage value in the example shown in FIG.

  First, an image obtained by reading the document placed on the document table by the scanner 4 is stored in the image memory 5 (step S1). Here, the user operates the input unit 2 to designate divided display. In response to this, the control unit 1 displays a message for instructing the display unit 3 to input the number of divisions. In response to this message display, the user inputs the number of divisions from the input unit 2. Here, it is assumed that 16 divisions are input. The value of the number of divisions is read by the control unit 1 and notified to the division display processing unit 7 (step S12). In response to this, the divided display processing unit 7 reads the original image data G stored in the image memory 5, divides the original image data G based on the inputted number of divisions, and obtains 16 divided areas. Define. Then, the divided display processing unit 7 inspects the state of the image in each divided area, obtains the print rate in each divided area, and defines the print rate that defines the print rate in each divided area based on the obtained print rate. The table is held inside (step S13). In the printing rate table T, as shown in FIG. 3, the printing rate values of the respective divided areas are set.

  Next, the divided display processing unit 7 refers to the printing rate of each divided area of the printing rate table T, divides each divided area in stages, and displays it on the printing rate display area W2 of the divided display screen W. (Step S14). In FIG. 3, the example divided into two levels is shown. In this level division, for example, a comparison with the threshold value “1” is performed, and a divided area (a blank area shown in FIG. 3) in which the printing rate is smaller than the threshold value “1” and the printing rate are set to the threshold value “1”. This is performed by dividing into the above-mentioned divided areas (shaded areas shown in FIG. 3). In the example shown in FIG. 3, two levels of levels are shown, but three or more levels may be used. In this case, display patterns (hatching types, color densities, etc.) corresponding to the number of levels are used. The printing rate display area W2 may be displayed using (representing the size of the printing rate).

  Next, the divided display processing unit 7 refers to the print rate value of each divided region, and displays the divided region (reference numeral T1 shown in FIG. 3) having the highest print rate value in the current display window (FIG. 3). (Step W15), and the current position of the display window is displayed in the printing rate display area W2. Then, the divided display processing unit 7 displays the image of the divided area where the display window W3 is set in the image display area W1 (step S16). As a result, the image “A” of the divided area G1 is displayed in the image display area W1.

  Next, the user operates the display window operation keys B1, B2, B3, and B4 in the divided display screen W to move the display window up, down, left, and right to display an image of a desired divided area in the image display area W1. To display. At this time, the divided display processing unit 7 refers to the printing rate table T and controls selection of the display window operation key and the divided area to be displayed. For example, when the display window operation key B2 for moving the display window to the right is pressed while the current display window is displaying the divided area G1 of the original image data G, the divided display processing unit 7 displays the printing rate. Is searched for only in the right direction, and then a divided area (in this example, code T2) where the printing rate is not “0” is searched, and the found divided area (in this example, divided area G2) is displayed in the image display area W1. To do. That is, when the display window operation keys B1, B2, B3, and B4 are pressed, control is performed so as to move only the divided area (the divided area where the image exists) where the printing rate of each direction of the operation key is not “0”. .

  Then, the divided display processing unit 7 reads the operation state of the display window operation keys B1, B2, B3, and B4 (step S17), and the image of the divided area is displayed as the image display area while the display window operation key is operated. The display process on W1 is continued (step S18). On the other hand, when the cancel key B5 in the split display screen W is pressed without operating the display window operation key, the split display processing unit 7 stops the split display process. Further, when the print start key B6 in the divided display screen W is pressed without operating the display window operation key, the divided display processing unit 7 indicates that the print start key B6 has been pressed to the control unit 1. To be notified. In response to this, the control unit 1 instructs the printing unit 6 to print the original image data G stored in the image memory 5.

  As described above, when the image data is divided and displayed in a plurality of areas, the printing rate of each divided area is displayed stepwise, so that the image display of each divided area is performed based on the printing rate of each divided area. Thus, the user can easily check the divided display image without performing unnecessary display operation.

In addition, as described above, as an example of use of dividing and displaying an image, in addition to enlarging and confirming the details of one image, each print is performed when enlarging an image and printing on a plurality of printing sheets. You may use when checking the printing contents for every paper. In this case, the number of image divisions may be obtained based on the designated enlargement ratio. For example, if the enlargement ratio is 200%, the number of divisions is 2.
In the above description, the image forming apparatus has been described as an example. However, the image display apparatus of the present invention can also be applied to a printer driver preview or the like.

  Further, the program for realizing the function of the processing unit in FIG. 1 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed to control image display. Processing may be performed. Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer system” includes a WWW system having a homepage providing environment (or display environment). The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” refers to a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those holding programs for a certain period of time are also included.

  The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

It is a block diagram which shows the structure of one Embodiment of this invention. It is a flowchart which shows operation | movement of the division | segmentation display process part 7 shown in FIG. It is explanatory drawing which shows an example of a confirmation display screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Control part, 2 ... Input part, 3 ... Display part, 4 ... Scanner, 5 ... Image memory, 6 ... Printing part, 7 ... Divided display process part, 8 ・ ・ ・ Communication Department

Claims (4)

An image display apparatus for displaying an image is divided into a plurality,
Storage means for storing image data of said image,
A division number specifying means for specifying the number of image divisions;
Image dividing means for dividing the image data based on the number of divisions and defining the same number of divided regions as the number of divisions;
A table generation means for obtaining a printing rate for each divided region and generating a printing rate table defining a printing rate for each divided region;
By comparing the printing rate for each divided region defined in the printing rate table with a threshold value, a divided region having a printing rate equal to or higher than the threshold value is extracted, and an image of the divided region having the highest printing rate is obtained. When the current window is set and displayed in the image display area, and the movement direction of the display window is instructed by the display window operation key, only the image in the divided area having the printing rate equal to or higher than the threshold value in the movement direction is displayed. An image display device comprising: divided region image display means for sequentially selecting and displaying the images in the image display region . Referring to the printing rate table, each divided region is divided into levels into divided regions having a printing rate equal to or higher than the threshold value and divided regions having a printing rate smaller than the threshold value, and the mutual positional relationship is shown. the image display apparatus according to claim 1, further comprising a printing ratio display means for displaying such. A display control program for controlling the image display in the image display apparatus having a storage means for storing image data of the image to be displayed by dividing the image into a plurality,
A division number specifying process for specifying the number of image divisions;
Image division processing for dividing the image data based on the division number, and defining the same number of division regions as the division number;
A table generation process for obtaining a printing rate for each of the divided regions and generating a printing rate table defining the printing rate for each divided region;
By comparing the printing rate for each divided region defined in the printing rate table with a threshold value, a divided region having a printing rate equal to or higher than the threshold value is extracted, and an image of the divided region having the highest printing rate is obtained. When the current window is set and displayed in the image display area, and the movement direction of the display window is instructed by the display window operation key, only the image in the divided area having the printing rate equal to or higher than the threshold value in the movement direction is displayed. A display control program for causing a computer to perform divided area image display processing for sequentially selecting and displaying the image in the image display area . Referring to the printing rate table, each divided region is divided into levels into divided regions having a printing rate equal to or higher than the threshold value and divided regions having a printing rate smaller than the threshold value, and the mutual positional relationship is shown. the display control program according to claim 3, characterized in that to perform the printing rate display processing further computer to display as.

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