JP4992259B2 - Display control apparatus and display control program - Google Patents

Description

  The present invention relates to a display control device and a display control program for scroll-controlling displayed images.

  Conventionally, when a large image is displayed on the display device in the vertical and horizontal directions of the display screen, for example, an area equivalent to the display screen is cut out from the image, and an arbitrary direction, for example, a right scroll key is operated according to a user key operation In such a case, scroll display is performed from the left end to the right end, and if scroll display is performed up to the right end of the image, scrolling is stopped. When the user operates the left scroll key, the image is scrolled to the left end of the image, and then the lower scroll key is operated to scroll downward, and then the right scroll key is operated again. Scrolled from the part to the right end part. Accordingly, in order to scroll the entire image on the display screen, the user needs to operate the left and right scroll keys and the down scroll key a plurality of times. In particular, when the image is a text image, many key operations must be performed to visually recognize the characters of the text along the line, which is complicated.

Accordingly, a display control apparatus has been proposed that scrolls the image to the right end of the image and then continuously scrolls the image from the left end to scroll the text image without complicated operations. (For example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 11-224082

  When the image displayed on the display screen is a text image, the purpose of the user visually recognizing the image is to read a sentence composed of a directional character string. Therefore, in this case, as described above, after scrolling to the right end of the image, the user continuously scrolls the image from the left end to continuously display a directional character string along the line. Can be visually recognized, and the reading of the text becomes easy.

  However, when the image displayed on the display screen is not a text image but a natural image other than a text image, the natural image has no directionality like a text image. For this reason, when viewing a natural image with no directionality, after scroll-displaying to the right end of the image in the same manner, if the image from the left end is continuously scroll-displayed, the user who visually recognizes the entire image This makes it difficult to grasp the image, which hinders image viewing.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a display control device and a display control program capable of performing appropriate scroll display according to the content of a displayed image. .

In order to solve the above-mentioned problem, the invention described in claim 1 includes a display unit that displays an image, an image determination unit that determines whether the image displayed on the display unit is a tabular text image, When the image determining means determines that the image is a tabular text image, the front end portion between a pair of parallel ruled lines existing at the left end or the upper end of the tabular text image displayed on the display means is fixed. Display control means for displaying and executing scroll control of other table parts excluding the table end part .

The invention according to claim 2 further includes designation means for arbitrarily designating the front end portion to be fixedly displayed in the invention according to claim 1 .

The invention according to claim 3 further comprises recognition means for recognizing the front end portion in the tabular text image according to the invention of claim 1 , wherein the display control means is recognized by the recognition means. The displayed front edge portion is fixedly displayed.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the invention further includes item specifying means for specifying a plurality of item portions in the table format of the tabular text image, and the display means includes the item specification unit. Each item part designated by the designation means and the data part corresponding to each item part are extracted and displayed in parallel, and the display control means is configured for the plurality of item parts displayed in parallel and the data part corresponding thereto. In addition to fixing the item part, scroll control of the data part excluding this item part is executed.

In order to solve the above-mentioned problem, the invention according to claim 5 is an image determination means for determining whether or not an image displayed on the display means is a tabular text image by using a computer included in an apparatus including display means. When the image determining means determines that the image is a tabular text image, the front end portion between a pair of parallel ruled lines existing at the left end or the upper end of the tabular text image displayed on the display means is displayed. It is made to function as a display control means for performing fixed control and scrolling control of other table portions excluding the front end portion .

According to the present invention, even when the displayed image is a text image or a tabular text image, the image can be scroll-controlled in an appropriate scroll form.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an outline of an electrical configuration of a digital camera 1 to which an embodiment of the present invention is applied. The digital camera 1 includes a CCD 11 that is an image sensor disposed behind the optical axis of the imaging lens 10. The CCD 11 is scan-driven by a timing generator (TG) 12 and a vertical driver 13 and outputs an image signal for one screen at a constant period.

  The output signal of the CCD 11 is appropriately adjusted for each RGB primary color component in the state of an analog signal, then sampled and held by a sample hold circuit (S / H) 14 and converted into digital data by an A / D converter 15. It is sent to the color process circuit 16. The color process circuit 16 generates digital luminance signals Y and color difference signals Cb and Cr by color process processing including image interpolation processing, and outputs them to a DMA (Direct Memory Access) DMA controller 17.

  The DMA controller 17 once writes the luminance signal Y and the color difference signals Cb and Cr into the buffer in the DMA controller 17 using the composite synchronization signal, the memory write enable signal, and the clock signal from the color process circuit 16, and the DRAM interface (I / F) DMA transfer to DRAM 19 via 18. After the DMA transfer of the luminance and color difference signal data, that is, the image data to the DRAM 19, the control unit 20 reads the image data from the DRAM 19 via the DRAM interface 18 and writes the image data to the VRAM 22 via the VRAM controller 21.

  The digital video encoder 23 periodically reads out the image data from the VRAM 22 via the VRAM controller 21, generates a video signal based on these data, and outputs the video signal to the display unit 24. The display unit 24 is a display unit according to the present invention, and includes a liquid crystal monitor and a drive circuit thereof. The display unit 24 performs display based on a video signal from the digital video encoder 23 and is fetched from the VRAM controller 21 at that time. A live view image based on the current image information is displayed.

  The key input unit 25 includes various keys such as a shutter key, a mode setting key for switching between a shooting mode and a reproduction mode, a setting key for setting an image enlargement magnification during reproduction, and a scroll key for instructing a scroll direction of the reproduction image. When a shutter key is operated in a state where a through image is displayed, a trigger signal for starting imaging is generated. In the still image capturing mode in the recording mode, the control unit 20 stops the path from the CCD 11 to the DRAM 19 in response to the trigger signal, and the image data for one frame written in the DRAM 19 is transmitted via the DRAM interface 18. Read out and sent to the JPEG circuit 26. The JPEG circuit 26 compresses and encodes the sent image data, and the compressed image data is read out by the control unit 20 and recorded as a still image file in a flash memory 27 which is a nonvolatile memory.

  The image file recorded in the flash memory 27 is read into the JPEG circuit 26 in accordance with a selection operation using an operation key or the like in the playback mode, and is then decoded into image data, and then enlarged or reduced by the control unit 20 as necessary. The image is reduced, sent to the VRAM 22 via the VRAM controller 21, and displayed on the display unit 24.

  The control unit 20 is a microcomputer mainly composed of a CPU and its peripheral circuits, a RAM as a working memory of the CPU, and a built-in clock having a calendar function, and a program area secured in the flash memory 27. It controls based on the program stored in the above, and controls the operation of each unit described above.

  The flash memory 27 stores a scroll speed table 271 shown in FIG. 2A and an enlargement rate table 272 shown in FIG. The scroll speed table 271 stores an appropriate scroll speed (mm / s) corresponding to the character size (number of points) of the text image reproduced and displayed on the display unit 24. In the enlargement ratio table 272, when the image recorded in the flash memory 27 is a non-tabular text image to be described later, it corresponds to the character size (number of points) of the recorded text image. In addition, an enlargement ratio (%) for enlarging the character size that can be properly visually recognized when displayed on the display unit 24 is stored.

  In the present embodiment having the above configuration, when the playback mode is set by operating the mode selection key provided in the key input unit 25, the control unit 20 is based on the program stored in the flash memory 27. Processing as shown in the flowchart of FIG. 3 is executed. That is, when the user captures an image in the recording mode, it waits until any image is selected from the images recorded in the flash memory 27 as described above (step S101). If any image is selected, the selected image is displayed on the display unit 24 (step S102). Next, it is determined whether or not an enlargement key for enlarging and displaying a part of the image displayed on the display unit 24 has been operated (step S103). If the enlarge key is operated, it is determined whether or not the image selected in step S101 is a text image (step S104).

  When determining whether or not the image is a text image, for example, as disclosed in Japanese Patent Laid-Open No. 2005-84157, an image corresponding to a predetermined area corresponding to the display screen of the display unit 24 is obtained from the image data of the original image. Data is cut out, and in the cut out image data, it is determined whether there is image data of a pixel whose brightness difference with an adjacent pixel is equal to or greater than a threshold value. If there is, the image includes text (characters). Judged to be an image. As for the method using the determination of whether or not the image is a text image, there are many conventional methods as described in Japanese Patent Application Laid-Open No. 2006-53920, for example, Jun Sun, Yutaka Katsyuyama, Satoshi Naoi, “Text processing method for e-Learning videos”, IEEE CVPR workshop on document image analysis and retrieval (IEEE) CVPR workshop on Document Image Analysis and Retrieval), 2003.

  If it is not a text image (step S104; NO), a natural image scroll display process described later is executed (step S105). If it is a text image, it is determined whether or not the image is a tabular text image (step S106). If it is a tabular text image, a non-tabular text image scroll display process described later is executed (step S107). If it is a tabular text image, a tabular text image scroll display process is executed. Execute (Step S108).

  FIG. 4 is a flowchart showing the processing procedure of the natural image scroll display process (step S105). First, the central portion of the image is enlarged and displayed at a predetermined enlargement ratio on the display unit 24 (step S201). That is, in the DRAM 19, the original image is cut out from the center portion to a size that can be displayed on the screen of the display unit 24 at a predetermined magnification (hereinafter simply referred to as “corresponding size”), and the cut-out center portion. Are enlarged and displayed on the display unit 24. Next, it is determined whether or not the enlargement factor has been changed by an operation on the key input unit 25 by the user. If there is a change, the enlargement factor is changed (step S203). That is, as the enlargement ratio is increased, the cutout area from the original image is gradually reduced, and as the enlargement ratio is lowered, the cutout area from the original image is gradually increased. Further, it is determined whether or not a scroll operation has been performed (step S204). If there is a scroll operation, scroll processing is executed (step S205). That is, in the direction specified by the scrolling operation (any one of the up, down, left, and right directions), the corresponding sizes are sequentially cut out and sequentially displayed on the display unit 24. Subsequently, it is determined whether or not the image has been displayed to the end in the scroll direction (step S206), and whether or not the scroll operation by the user has been released (step S207). Then, the scroll process is stopped when the scroll end is displayed or when the user cancels the scroll operation (step S208).

  Therefore, when the image to be displayed is not a text image but a natural image, the display is continued from the other end of the image after being displayed up to one end of the image as in the case of the text image described later. There is no such thing as continuing. Therefore, since the scroll from the end is continuously repeated, the natural image is not difficult to see.

  5 and 6 are a series of flowcharts showing a processing procedure of the non-tabular text image display processing (step S107). As shown in the flowchart of FIG. 5, it is determined in advance whether or not the speed has been set by the operation of the key input unit 25 by the user (step S301). At this time, if the speed has been set in advance, this set speed is stored in the DRAM 19, and the stored set speed is read (step S302). If not set in advance, the smallest character is detected in the original image stored in the DRAM 19, and the speed corresponding to the detected character size (number of points) is set to the scroll speed table 271 (FIG. 2 (a)) and set (step S303). Based on the character size statistics in the original image stored in the DRAM 19, the speed corresponding to the character size (number of points) occupying 50% or more is set as the scroll speed table 271 (see FIG. 2 (a)) may be read and set.

  Further, it is determined in advance whether or not the shift amount has been set by the user operating the key input unit 25 (step S304). This shift amount setting is performed in units of rows, and when there is a setting, the number of rows is stored in the DRAM 19. Therefore, the shift amount (mm) is calculated by detecting the distance between the lines in the image portion displayed on the display unit 24 and multiplying the distance between the lines by the set number of lines (step S305). If the shift amount is not set, the inter-line distance is detected and set as the shift amount (step S306). Therefore, in the present embodiment, the shift amount automatically set is a length corresponding to one row, but the present invention is not limited to this, and a plurality of rows may be automatically set as the shift amount.

  Further, it is determined whether or not the enlargement ratio has been set by the user operating the key input unit 25 (step S307). When the enlargement ratio is set in advance, this enlargement ratio is stored in the DRAM 19, and the stored enlargement ratio is read (step S308). If it is not set in advance, the smallest character is detected in the original image, and the enlargement factor corresponding to the detected character size (number of points) is set as the enlargement factor table 272 (FIG. 2B). Is read and set (step S309). It should be noted that, based on the character size statistics in the original image, an enlargement rate corresponding to a character occupying 50% or more is read from the enlargement rate table 272 (FIG. 2B) and set. Also good.

  Next, it is determined whether or not the characters in the non-tabular text image are horizontally written (step S310). In this determination, since it is determined whether or not the image is a text image in the step S104, the character arrangement direction in the text image is further detected, so that the characters in the text image are written horizontally or vertically. It can be judged whether there is. Then, as shown in FIG. 7A, in the case of horizontal writing, the upper left portion of the image is displayed on the display unit 24 (step S311). That is, in the DRAM 19, an image portion P1 is cut out from the upper left end portion of the original image shown in FIG. 7A in a size corresponding to the screen of the display unit 24, and the image portion P1 from the cut out upper left end portion is cut out. Are displayed on the display unit 24 at the magnification set in step S308 or S309. Therefore, by the process of step S311, the image portion P1 is displayed on the full screen on the display unit 24 as shown in FIG. 7B.

  Subsequently, it is determined whether or not a scroll operation has been performed (step S312). If a scroll operation has been performed, scroll processing in the right direction is started at the speed obtained in step S302 or step S303 (step S313). ). That is, the corresponding size is sequentially cut out in the right direction and is sequentially displayed on the display unit 24. Further, it is determined whether or not the image portion to be cut out during the scroll operation exceeds the right end portion which is the end portion in the scroll direction in the original image (step S314). Therefore, as shown in FIG. 7A, when the cut-out image portion P2 cut out when scrolling exceeds the right end portion of the original image, the determination in step S314 is YES.

  If the determination in step S314 is YES, the image is shifted downward by the shift amount, and the left end image is combined with the clipped image remaining in the right end portion and displayed (step S315). Therefore, as shown in FIG. 7A, when the cut-out image portion P2 exceeds the right end portion of the original image, the image portion P3 corresponding to the short cut-out portion of the cut-out image portion P2 remaining at the right end portion. Are cut out from the left end and synthesized. At this time, for example, if this shift amount is a shift amount for one row, the cut-out image portion P3 from the left end is shifted downward and combined. Therefore, the cut-out image portion P3 from the left end corresponding to the short cut-out portion is combined with the cut-out image portion P2 remaining at the right end portion by shifting by one line, and as shown in FIG. The images consisting of are sequentially synthesized and scrolled. If the determination in step S314 is no, the normal scroll control described in step S313 is executed.

  Next, it is determined whether or not the image has been displayed up to the lower right corner of the original image (step S316), and whether or not the scroll operation by the user has been released (step S317). Then, the scroll process is stopped when the original image is displayed to the lower right corner or when the scroll operation is released (step S318).

  In the above description, the horizontal text image is scrolled in the right direction from the upper left end. However, in the case of scrolling in the left direction opposite to this, the left end is displayed in step S314. It is determined whether or not the image exceeds the upper limit. If the upper limit is exceeded, the image is shifted upward in step S315 to synthesize the right end image.

  On the other hand, if the result of determination in step S310 is vertical writing, the process proceeds to the flowchart shown in FIG. 6, and the upper right end portion of the image is displayed on the display unit 24 (step S319). That is, in the DRAM 19, the original image shown in FIG. 7A is cut out from the upper right end with a size corresponding to the screen of the display unit 24, and the cut out image portion from the upper right end is the step S 308. Alternatively, the image is displayed on the display unit 24 at the enlargement ratio set in S309.

  Subsequently, it is determined whether or not a scroll operation has been performed (step S320). If a scroll operation has been performed, a downward scroll process is started at the speed obtained in step S302 or step S303 (step S321). ). That is, the corresponding size is sequentially cut out downward and displayed on the display unit 24 sequentially. Further, it is determined whether or not the image portion to be cut out during the scroll operation exceeds the lower end portion that is the end portion in the scroll direction of the original image (step S322).

  If the determination in step S322 is YES, the image is shifted leftward by the shift amount, and the upper end image is combined with the cutout image remaining in the lower end portion and displayed (step S323).

  Next, it is determined whether or not the lower left portion of the original image has been displayed (step S324) and whether or not the scroll operation by the user has been released (step S325). Then, the scroll process is stopped when the original image is displayed to the lower left corner or when the scroll operation is released (step S326).

  In the above description, the case where the vertically written text image is scroll-displayed downward from the upper right end portion is shown. However, when the scroll image is scrolled upward in the opposite direction, the upper end portion is displayed in step S322. If it exceeds, it is sufficient to shift to the right in step S323 and synthesize the lower end image. In the present embodiment, the distance between lines in the image portion displayed on the display unit 24 is detected and the shift amount is calculated based on the distance between the lines. However, the user operates the key input unit 25. By doing so, an arbitrary inter-line distance and shift amount may be manually set.

  FIG. 9 is a flowchart showing a processing procedure of the tabular text image display processing (step S108). First, it is determined whether or not a later-described table item selection mode is set (step S401). If it is not set, the upper left part of the image is displayed on the display unit 24 (step S402). That is, in the DRAM 19, a part of the original image as shown in FIG. 10A is cut out from the upper left end part in a size corresponding to a predetermined enlargement ratio, and the image part from the cut out upper left end part is The image is displayed on the display unit 24 at an enlargement ratio.

  Next, it is determined whether or not a right scroll operation has been performed (step S403). If there has been a right scroll operation, a pair of parallel pairs present at the left end of the tabular text image displayed on the display unit 24 is determined. The front end portion between the ruled lines is fixedly displayed on the left end portion of the screen (step S404). Accordingly, in the display state shown in FIG. 10B, since the front end portion between the pair of parallel ruled lines existing at the left end portion is the term “Year”, the term “Year” P4 is the display portion. It is cut out according to the vertical display length of the 24 screens and fixedly displayed at the left end of the screen.

  Next, the scrolling process in the right direction of the remaining portion excluding the front end portion is started (step S405). That is, the original image is sequentially cut out in the right direction at a predetermined speed in a size corresponding to the area excluding the front end portion (P4) on the screen of the display unit 24, and the front end portion (P4) is displayed on the display unit 24. Are combined and displayed sequentially. Therefore, by the processing in step S405, the “Year” term P4 is fixed, but the other terms are scrolled to display the portion that fits within the screen of the display unit 24. Further, it is determined whether or not the image cut out during the scroll operation exceeds the right end portion which is the end portion in the scroll direction of the original image (step S406).

  Therefore, as shown in FIG. 11A, when the cut-out image portion P5 cut out when scrolling exceeds the right end of the original image, the determination in step S406 is YES. If the determination in step S406 is YES, the image at the left end excluding the front end image portion P4 is combined with the cutout image remaining at the right end and displayed (step S407). Therefore, by the processing in step S407, the left end image portion P6 excluding the front end image portion P4 is combined with the right end portion of the cutout image portion P5 remaining in the right end portion in FIG. Further, by displaying the synthesized image on the display unit 24, as shown in FIG. 11B, the image part P4 is fixedly displayed on the display unit 24, while the image parts P5 and P6 are synthesized. Images are scrolled sequentially. Next, it is determined whether or not the scroll operation by the user is released (step S408), and the scroll process is stopped when the scroll operation is released (step S415).

  In the above description, the case where the tabular text image is scroll-displayed in the right direction from the left end portion is shown. However, in the case of scroll-displaying in the left direction opposite to this, the left scroll key is displayed in step S403. In step S405, leftward scrolling of the remaining portion is started. In step S406, it is determined whether or not the left end portion is exceeded. What is necessary is just to synthesize | combine the image of a right end part.

  If there is no right scroll operation in step S403, it is determined whether or not there is a down scroll operation (step S409). If there is a down scroll operation, the table format displayed on the display unit 24 is determined. The front end portion between a pair of parallel ruled lines existing at the upper end of the text image is fixedly displayed at the upper end of the screen (step S410). Next, scroll processing in the downward direction of the remaining portion excluding the front end portion is started (step S411). That is, at a predetermined speed, the original image is sequentially cut out downward in a size corresponding to the area excluding the front end portion on the screen of the display unit 24 and is sequentially displayed on the display unit 24. Further, it is determined whether or not the image cut out during the scroll operation exceeds the lower end portion that is the end portion in the scroll direction of the original image (step S412). If the determination in step S412 is YES, the image portion at the upper end portion excluding the front end portion is combined with the cutout image portion remaining at the lower end portion and displayed (step S413). Next, it is determined whether or not the scroll operation by the user is released (step S414), and the scroll process is stopped when the scroll operation is released (step S415).

  In the present embodiment, the front end portion is automatically recognized, but the user may arbitrarily designate the front end portion by an operation on the key input unit 25. In the above description, the case where the tabular text image is scroll-displayed downward from the upper end portion has been described. However, when the scroll-image is displayed to scroll upward in the opposite direction, the up-scroll key is displayed in step S409. In step S411, the upward scrolling of the remaining part is started. In step S412, it is determined whether or not the upper end is exceeded. If so, the process proceeds to step S413. What is necessary is just to synthesize | combine the image of a lower end part.

  On the other hand, if it is determined in step S401 in FIG. 9 that the table item selection mode is set, the process proceeds from step S401 to step S420 in the flowchart shown in FIG. Then, the entire image is displayed on the display unit 24. Therefore, as a result of the processing in step S420, the entire tabular text image shown in FIG. 13 is displayed on the display unit 24.

  Next, it is determined from the displayed tabular text image whether or not an item part has been selected by an operation on the key input part 25 by the user (step S421). That is, since this table has “Year”, “Winner”, “Score”, “Course”, “Yard”, “Par” as item parts, it is determined whether or not these item parts are selected. to decide. If selected, the image portion of the selected item portion is cut out from the original image and temporarily stored in the DRAM 19 (step S422). Therefore, for example, if “Year”, “Course”, and “Yard” are selected, these image portions are cut out from the original image and temporarily stored in the DRAM 19.

  Next, it is determined whether or not the user has performed a scroll operation on the key input unit 25 (step S423). If there is a scroll operation, the image of the selected item portion is arranged on the upper end of the screen of the display unit 24. The display is fixed (step S424). That is, when a plurality of item portions stored in the DRAM 19 are arranged side by side in step S422, an enlargement ratio that can be displayed on the upper end portion of the screen of the display unit 24 is detected. Then, the plurality of item portions are enlarged at the detected enlargement rate, and are displayed side by side on the upper end portion of the screen of the display unit 24. Accordingly, if “Year”, “Course”, and “Yard” are selected, as shown in FIG. 13B, the item image portion in which “Year”, “Course”, and “Yard” are connected in the horizontal direction. P6 is displayed at an enlargement ratio that fits at the upper end of the screen of the display unit 24.

  Subsequently, a downward scrolling process is started for the data portion corresponding to the item portion (step S425). That is, assuming that “Year”, “Course”, and “Yard” are selected, a range that fits when the data portion is displayed at the enlargement rate within the area excluding the item image portion P6 on the screen of the display unit 24. Thus, the corresponding data portions are sequentially cut out in the downward direction and are sequentially displayed on the display unit 24. Therefore, in this example, as shown in FIG. 13A, the data image portions P7, P8, and P9 corresponding to “Year”, “Course”, and “Yard” are sequentially cut out downward, It will be scrolled.

  Then, it is determined whether or not the image to be cut out during the scroll operation exceeds the lower end which is the end of the original image in the scroll direction (step S426). If the determination in step S426 is YES, the image at the upper end in the corresponding data portion is combined with the cutout image remaining at the lower end and displayed (step S427). Next, it is determined whether or not the scroll operation by the user has been released (step S428), and the scroll process is stopped when the scroll operation is released (step S429).

  In the above description, the case where the tabular text image is scroll-displayed downward from the upper end portion has been shown. However, when the scroll image is displayed to be scrolled upward in the opposite direction, the upper end portion is displayed in step S426. It is determined whether or not the image data exceeds the upper limit, and if it exceeds, the image at the lower end of the corresponding data portion may be synthesized in step S427. Further, in the present embodiment, the case where the item portion of the table is at the upper end portion is shown, but the present invention can be applied even when it is at the left end portion. In this case, when the item portion selected from the left end item portion is fixed and the data portion is scroll-displayed in the right direction, it is determined whether or not the right end portion is exceeded in step S426. In such a case, the image at the left end of the corresponding data portion may be synthesized in step S427. If the data portion is to be scrolled to the left, it is determined whether or not the left end is exceeded in step S426. If it is exceeded, the right end image of the corresponding data portion is synthesized in step S427. You just have to do it.

  In the tabular text image school process, scrolling is performed at a predetermined speed, but the scroll speed is variably set by performing the same processes as in steps S304 to S306 in the flowchart of FIG. You may do it. Further, in the embodiments, the case where the present invention is applied to a digital camera has been described. However, the present invention is not limited to this, and any device having an image reproduction function such as a mobile phone may be used. The present invention can be applied.

1 is a block diagram illustrating an outline of an electrical configuration of a digital camera to which an embodiment of the present invention is applied. (A) is a conceptual diagram showing a scroll speed table, and (B) is a conceptual diagram showing an enlargement ratio table. It is a flowchart which shows the process sequence at the time of reproduction | regeneration mode. It is a flowchart which shows the process sequence of a natural image scroll process. It is a flowchart which shows the process sequence of a non-tabular text image scroll process. It is a flowchart following step S301 in FIG. (A) is a figure which shows original image data, (B) is a figure which shows a display example. It is a figure which shows the other example of a display. It is a flowchart which shows the process sequence of a tabular text image scroll process. (A) is a figure which shows original image data, (B) is a figure which shows a display example. (A) is a figure which shows original image data, (B) is a figure which shows a display example. 10 is a flowchart following step S401 in FIG. 9. (A) is a figure which shows original image data, (B) is a figure which shows a display example.

Explanation of symbols

1 Digital Camera 10 Imaging Lens 11 CCD
13 Vertical Driver 15 A / D Converter 16 Color Process Circuit 19 DRAM
20 Control unit 22 VRAM
23 Digital Video Encoder 24 Display Unit 25 Key Input Unit 26 JPEG Circuit 27 Flash Memory 271 Scroll Speed Table 272 Enlargement Ratio Table

Claims (5)

Display means for displaying an image;
Image determining means for determining whether or not the image displayed on the display means is a tabular text image;
When the image determining means determines that the image is a tabular text image, the front end portion between a pair of parallel ruled lines existing at the left end or the upper end of the tabular text image displayed on the display means is displayed. Display control means for performing fixed control and scrolling control of other table portions excluding the front end portion ; and
A display control apparatus comprising: The display control apparatus according to claim 1, further comprising a designation means for arbitrarily specifying a gourd portion for the fixed display. Recognizing means for recognizing the front end portion in the tabular text image,
Wherein the display control unit, the display control device according to claim 1, wherein the fixing displaying a gourd moiety recognized by the recognition means. An item designating unit for designating a plurality of item parts in the table format of the tabular text image;
The display means extracts each item part specified by the item specifying means and the data part corresponding to each item part and displays them in parallel.
The display control means fixes the item part for the plurality of item parts displayed in parallel and the data part corresponding thereto, and executes scroll control of the data part excluding the item part. Item 4. The display control device according to Item 1 . A computer having an apparatus having a display means;
Image determining means for determining whether the image displayed on the display means is a tabular text image;
When the image determining means determines that the image is a tabular text image, the front end portion between a pair of parallel ruled lines existing at the left end or the upper end of the tabular text image displayed on the display means is displayed. Display control means for performing fixed control and performing scroll control of other table parts excluding the front edge part;
A display control program characterized by functioning as

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