JPH11338459A - Display control method for line image and image display device using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve illegible problem in the case of displaying a line image on a display element with low resolution, by reducing a line image displayed in a specified position, and moving the same to an arbitrary position of a display area of a static image to be superposed thereon and displayed. SOLUTION: A line image of a sign scanned by a touch tablet is input on a display screen on an LCD display element 6 where a photographic image is displayed. A CPU 36 sends input data corresponding to the signed line image through a CPU control bus 49 to a frame memory 47. The data is superposed on photographic image data in a position on the frame memory 47 corresponding to a designated area on the LCD display element 6 decided as a default. Thus, the photographed image and a handwritten input line image are superposed and displayed. The displayed line image is moved to the position of a corresponding person by drag and drop processing and defined. Accordingly, the line image subjected to drag and drop processing is reduced and displayed in the position of the person, and then the displayed line image is changed into a broken line display.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a display control method of a line image and an image display device using the same. Especially,
The present invention relates to a display control method and an image display device capable of displaying a line image in association with a still image by a drag-and-drop process.

[0002]

2. Description of the Related Art In recent years, in addition to a camera using a silver halide film as an image pickup device, an image display device for photographing a subject image as a digital image using a charge-coupled device as an image pickup device and displaying the digital image on a display device such as an LCD. Has been developed and is becoming widespread.

Further, a portable device has been developed which enables a line image such as a character or a figure to be input by handwriting to such an image display device. In such an image display device, a line image is often input to be displayed in association with a captured image. For example, there is a case where an annotation memo is added to a photographed image, or a case where the photographed image is a person image and a sign or the like of the person is displayed on the photographed image.

[0004] Here, in a display element such as a portable image display device, the number of pixels is small, and therefore the resolution is low. When the captured image and the line image are superimposed and displayed on the display device having the low resolution as described above, it may be difficult to read the line image.

[0005] That is, when a photographed image is a plurality of human images and line images such as names and signs of the respective people are superimposed and displayed on the positions of the corresponding human images, the resolution is low or the display area is small. Obviously, the display element is difficult to read.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a line image display control method and a line image display control method which solve the problem that the line image is difficult to read when the line image is displayed on a low resolution display element. An object of the present invention is to provide an image display device using the same.

A further object of the present invention is to provide a display control method capable of reducing an input line image and displaying the image at an arbitrary position on an image display element, and an image display apparatus to which the display control method is applied. is there.

It is another object of the present invention to provide a display control method capable of facilitating confirmation by enlarging and displaying a line image displayed in a reduced scale, and an image display apparatus to which the method is applied.

Still another object of the present invention is to provide a touch tablet having an image display device as an electronic image pickup device having an image pickup device and having a line drawing input on a display device for displaying an image obtained from the image pickup device. It is an object of the present invention to provide a display control method for displaying a line image input by a touch tablet in association with an image obtained from an image sensor, and an image display device using the same.

[0010]

A display control method for achieving the above object of the present invention is a display control method for a line image in an image display device for displaying a still image and a line image,
A still image is displayed on the display element, a line image is displayed at a specific position of the display element, and the line image displayed at the specific position is further reduced, moved to an arbitrary position in the display area of the still image, and overlapped. It is characterized by displaying.

Further, the line image displayed at the specific position is moved to an arbitrary position in a display area of the still image by a drag and drop process.

The line image reduced and displayed at a predetermined position of the still image is enlarged and displayed at an original size at a specific position of the display element by a drag and drop process.

An image display device which achieves the object of the present invention is an image display device which displays a still image and a line image, wherein a transparent touch tablet plate is disposed on the front surface and a liquid crystal display which displays a still image. A panel, a frame controlled to store data of a still image and data of a line image input by the touch tablet board in a superimposed manner, and to read out data of the superimposed stored image and supply the read data to a liquid crystal display panel A memory, and a control unit that controls a size of the line image stored in the frame memory and a position where the line image is superimposed and stored on the still image.

Further, in the image display apparatus which achieves the object of the present invention, the control unit displays a line image input by the touch tablet board at a first predetermined position on the liquid crystal display panel in a predetermined size. And the size of the line image stored in the frame memory so as to be superimposed on the still image so as to be displayed at a predetermined reduction ratio at the movement position of the line image specified by the touch tablet board. The storage position of the frame memory is controlled.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or similar components will be described with the same reference numerals and symbols.

FIGS. 1 and 2 are perspective views showing the configuration of an embodiment in which the image display device of the present invention is applied as an electronic camera. For convenience of explanation, when photographing a subject, of the six surfaces constituting the electronic camera 1, the surface facing the subject is referred to as a surface X <b> 1 and is directed toward a photographer or a user of the apparatus (hereinafter referred to as a photographer). Surface X2
And

At the upper end of the plane X1, there are provided a finder 2 used for confirming the photographing range of the subject and a photographing lens 3 for taking in a light image of the subject. It is also possible to provide a light emitting unit (strobe) for emitting light for illuminating the subject, if necessary.

On the other hand, the finder 2 and the speaker 5 are provided at the upper end of the surface X2 facing the surface X1 (at the position corresponding to the upper end of the surface X1 where the finder 2 and the taking lens 3 are formed). The speaker 5 outputs audio corresponding to audio data recorded in a memory card or the like built in the electronic camera 1.

The LCD display element 6 and the operation keys 7 formed on the plane X2 are disposed vertically below the finder 2, the photographing lens 3, and the speaker 5. On the surface of the LCD 6, a so-called touch tablet 6A for inputting position data corresponding to a position specified by a contact operation of a predetermined pen-type pointing device (hereinafter abbreviated as a pen) 46 is formed.

The touch tablet 6A is made of a transparent material such as glass, resin or the like, and the photographer can display an image displayed on the LCD display element 6 formed inside the touch tablet 6A. Can be observed through.

The operation keys 7 are composed of a plurality of keys corresponding to various functions, as will be described later. The operation keys 7 are operated by a pen-type pointing device 46 or a fingertip, and image data and sound recorded on a built-in memory card or the like are recorded. It is used when data or recorded data such as text data is reproduced and displayed on the LCD display element 6. For example, the menu key 7A is operated when displaying a menu screen on the LCD display element 6. The execution key 7B is operated when reproducing the recording data selected by the photographer.

The clear key 7C is operated when deleting recorded data. The cancel key 7D is operated when interrupting the recording data reproduction process. The scroll key 7E is operated to scroll the screen up and down when a list of recording data is displayed on the LCD display element 6.

On the surface Z, which is the upper surface of the electronic camera 1,
A microphone (microphone) 8 for collecting sound and an earphone jack 9 for connecting an earphone (not shown) are provided.

On the left side (surface Y1), there are provided a release switch 10 which is operated when taking an image of a subject, and a power switch 11 which switches on / off the power. The release switch 10 and the power switch 11 are arranged vertically below the finder 2 and the photographing lens 3 provided at the upper end of the plane X1.

On the other hand, a plane Y2 (right side) opposed to the plane Y1
Has a recording switch 1 operated when recording voice.
2 are provided. The recording switch 12 is, like the release switch 10 and the power switch 11, the finder 2 provided at the upper end of the surface X1,
And below the photographing lens 3.

Next, an example of the internal electrical configuration of the electronic camera 1 shown in FIGS. 1 and 2 to which the present invention is applied will be described with reference to the block diagram shown in FIG. The CCD 20, which is an image sensor having a plurality of pixels, photoelectrically converts a light image formed on each pixel into an image signal (electric signal). The CCD driving circuit 39 is controlled by a digital signal processor (hereinafter, referred to as DSP) 33 described later, and drives the CCD 20. The lens drive circuit 30 moves the photographing lens 3 in the optical axis direction and performs focusing control and the like.

The image processing section 31 comprises a correlated double sampling circuit (hereinafter, referred to as CDS), an AGC (automatic gain control circuit), and the like. The CDS samples the image signal photoelectrically converted by the CCD 20 at a predetermined timing. . AGC controls the gain of a signal sampled by the CDS. An analog / digital conversion circuit (hereinafter, referred to as an A / D conversion circuit) 32 is configured to digitize an image signal sampled by the CDS of the image processing unit 31 and supply the digitalized signal to the DSP 33.

The DSP 33 once supplies the digitized image data to the buffer memory 35 and stores it.
Then, the image data stored in the buffer memory 35 is read out and, for example, a JPEG (Joint Photogra
After being compressed by a phic expert group, the data is supplied to the memory card 24 via the data bus 48 and recorded in a predetermined area (image recording area).

The CPU 36 obtains the time from the timer 45, and records information on the date and time of photographing as header information of the image data in the image recording area of the memory card 24. That is, the image date and time data is added to the image data recorded in the image recording area of the memory card 24.

The microphone (microphone) 8 receives a voice and supplies a voice signal corresponding to the voice to the A / D-D / A converter 38. A / DD-A
The converter 38 converts the supplied audio signal into digital audio data and supplies the digital audio data to the DSP 33. The DSP 33 compresses the audio data supplied from the A / D-D / A converter 38, supplies the compressed data to the memory card 24, and records the data in a predetermined area (audio recording area). At this time, in the audio recording area of the memory card 24, data of the recording date and time is recorded as header information of the audio data.

When a predetermined position of the touch tablet 6A is pressed by the pen type pointing device 46 operated by the photographer, the CPU 36 reads the XY coordinates corresponding to the pressed position of the touch tablet 6A, and reads the coordinate data. (Which constitute line drawing information to be described later) is stored in a predetermined memory (not shown). Also, the CPU 36
Supplies the line drawing information stored in the memory, together with header information such as the date and time when the line drawing information was input, to the memory card 24 and causes the memory card 24 to record it in the line drawing information recording area.

The buffer memory 35 and the frame memory 47 are connected to the CPU 36 via a CPU control bus 49, and the LCD 6 is connected to the frame memory 47. The image corresponding to the image data stored in the buffer memory 35 can be displayed on the LCD 6 via the frame memory 47. However, the image data that has been subjected to the compression processing is once stored in D
After being expanded by the SP 33, it is supplied to the buffer memory 35 via the data bus 48.

The speaker 5 is connected to the A / D-D / A converter 38. The audio data read from the memory card 24 is expanded by the DSP 33,
After being converted into an analog audio signal by the A / D-D / A converter 38, it is output from the speaker 5.

The detection circuit 40 detects the voltage of the battery 21 and supplies corresponding data to the CPU 36.

When each of the operation keys 7, the release switch 10, the power switch 11 and the recording switch 12 in FIGS. 1 and 2 is operated, a signal corresponding to the operation is supplied to the CPU 36 as an interrupt signal. .
Thus, when the operation key 7 or each switch is operated, the CPU 36 executes a corresponding predetermined process.

Next, the operation of the electronic camera 1 having the above-described embodiment when first photographing a subject will be described in relation to the still image display control method of the present invention.

As shown in FIG. 1, the power supply switch 11 provided on the surface Y1 is switched to the side on which "ON" is printed, and the electronic camera 1 is turned on. When the subject is confirmed in the viewfinder 2 and the release switch 10 provided on the surface Y1 is pressed, the subject photographing process is started.

A light image of a subject observed by the finder 2 is condensed by the imaging lens 3 and forms an image on a CCD 20 having a plurality of pixels. The light image of the subject formed on the CCD 20 is photoelectrically converted into a pixel signal at each pixel, and is sampled by a CDS constituting the image processing unit 31.

The image signal sampled by the CDS is supplied to an A / D conversion circuit 32 after its gain is controlled by an AGC constituting the image processing section 31.
There, it is digitized and supplied to the DSP 33.

The DSP 33 once supplies the digitized image data to the buffer memory 35 and stores it.
Then, the image data stored in the buffer memory 35 is sent to the frame memory 47 and displayed on the LCD display element 6. At the same time, the image data stored in the buffer memory 35 is compressed according to the JPEG system combining discrete cosine transform, quantization, and Huffman coding. Thereafter, the compressed image data is supplied to the memory card 24 via the data bus 48.

The memory card 24 records the image data supplied from the DSP 33 in an image recording area. At this time, in the image recording area of the memory card 24, data of the shooting date and time is recorded as header information of the image data.

Next, using the touch tablet 6A,
An operation in the case of inputting two-dimensional pen input information (line drawing information) will be described. When the pen tip of the pen type pointing device 46 is brought into contact with the touch tablet 6A, the XY of the contacted portion is obtained.
Data corresponding to the coordinates is supplied to the CPU 36.

The CPU 36 writes, for example, line image data corresponding to a point of a predetermined size at a position corresponding to the XY coordinate in the frame memory 47 based on the data corresponding to the XY coordinate. Thereby, a dot of a predetermined size is displayed at a corresponding position on the LCD display element 6.

As described above, since the touch tablet 6A formed on the surface of the LCD display element 6 is made of a transparent member, the photographer can use the pen tip of the pen-type pointing device 46 on the LCD 6. Touch tablet 6
The point displayed at the position where A is pressed can be observed, and it can be felt as if a pen input was made directly on the LCD display element 6.

When the pen-type pointing device 46 is moved while being in contact with the touch tablet 6A, a line drawing is displayed on the LCD display element 6 along the locus of the movement of the pen-type pointing device 46. Further, when the pen-type pointing device 46 is intermittently moved on the touch tablet 6A, a broken line is displayed on the LCD display element 6 as the pen-type pointing device 46 moves.

As described above, the photographer can use the touch tablet 6A and the LCD display device 6 to input desired characters,
Line drawing information such as figures can be input.

Further, when a photographed image is displayed on the LCD display element 6, when line drawing data such as a character is input by the pen type pointing device 46, the line drawing data is stored in the photographed image data and the frame memory 47. Synthesized by Therefore, the line image is displayed on the LCD display element 6 together with the captured image.

At this time, in the frame memory 47, the display position and the size of the line drawing data to be synthesized with the photographed image data can be controlled by the CPU 36 in accordance with an input instruction of the photographer or a default as described later.

Further, the line drawing data input by the pen type pointing device 46 and the touch tablet 6A is
Is pressed, the line drawing information once stored in the buffer memory 35 or the like is compressed by the DSP 33, and then supplied to the memory card 24 via the CPU control bus 49 together with the header information of the input date and time. It is recorded in the line drawing information recording area of the memory card 24.

As described above, the line drawing data recorded on the memory card 24 is also information subjected to the compression processing. Here, the line drawing information input by the touch tablet 6A includes a lot of information having high spatial frequency components. For this reason, if the compression processing is performed by the JPEG method used for compressing the photographed image, the compression efficiency is low, and the amount of information does not decrease much. Further, since the compression by the JPEG method is irreversible compression, it is not suitable for compression of line drawing information having a small amount of information. This is because, when the image is expanded and displayed on the LCD display element 6, gathers, bleeding, and the like due to lack of information become noticeable.

Therefore, the line drawing information is compressed by, for example, a run length method used in a facsimile or the like. The run-length method scans a line drawing in the horizontal direction and continues the length of information (points) of each color such as black, white, red, and blue, and the length of continuous information (no pen input). This is a method of compressing line drawing information by encoding.

By using this run length method,
Line drawing information can be efficiently compressed, and even when the compressed line drawing information is expanded, loss of information can be suppressed. When the information amount of the line drawing information is relatively small, it is possible not to compress it.

When reproducing the image data recorded on the memory card 24, the photographer presses a desired thumbnail image from a plurality of thumbnail images displayed on the LCD display element 6 with the pen tip of the pen-type pointing device 46. By selecting the information, and then pressing the execution key 7B,
Instructs reproduction of the selected information.

The image data corresponding to the selected thumbnail image is read from the memory card 24 by the DSP 33 and decompressed. The expanded image data is CP
The data is supplied to the frame memory 47 via the U control bus 49 and stored as bitmap data. Next, a control signal corresponding to the image data stored in the frame memory 47 is supplied to the LCD 6, and the corresponding image is displayed.

Also, ON / OF of line drawing display on LCD 6
The user can select and set F. When the line drawing display is set to ON, the specified image is
6, when the line drawing information corresponding to the image is recorded on the memory card 24, the line drawing corresponding to the line drawing information is displayed on the LCD 6. On the other hand, when the line drawing display is set to OFF, a predetermined image is displayed on the LCD 6, and even if the line drawing information corresponding to the image is recorded on the memory card 24, the line drawing corresponding to the line drawing information is LC
Not displayed on D6.

For example, a switch (for example, an icon written as “ON / OFF”) for setting ON / OFF of the line drawing display is displayed at the upper right of the screen of the LCD 6, and the switch corresponding to the portion where this icon is displayed is displayed. By pressing a predetermined position of the touch tablet 6A using the pen 46, ON / OFF of the line drawing display can be alternately set.

For example, when a part of the image is not visible due to the line drawing, the line drawing display is set to OFF as described above, and the line drawing is erased from the screen, so that the part can be made visible. . Alternatively, when the information represented by the line drawing is understood and the display of the line drawing is no longer necessary, the line drawing display can be set to OFF and only the line drawing can be erased from the screen.

Next, the operation of the embodiment of the line image display control method according to the present invention will be described.

FIG. 4 is an operation flowchart of the first embodiment of the line drawing display method of the present invention. In FIG. 4, first, a photographed image is displayed on the LCD display device 6 (step S1).
0). FIG. 8 shows an example of the display of the captured image. The captured image in FIG. 8 is a captured image in which three persons are arranged.

The photographed image is input as a line image of the signature S scanned by the touch tablet 6A using the pen type pointing device 46 on the display surface of the LCD display element 6 on which the photographed image is displayed (step S11). Therefore, the CPU 36
Receives input data corresponding to a line drawing signed on the touch tablet 6A using the pen-type pointing device 46, and sends the input data to the frame memory 47 through the CPU control bus 45.

At this time, the LC determined as the default
The image is superimposed on the captured image data at a position on the frame memory 47 corresponding to a predetermined area P on the D display element 6. Therefore, as shown in FIG. 9, the photographed image and the handwritten input line drawing (sign S) are displayed in a superimposed manner (step S12).

Here, in the example shown in FIG. 9, the photographed image and the hand-drawn input line drawing (sign S) are displayed in a superimposed manner in a predetermined area, and correspond to any person in the displayed photographed image. Whether it is a sign is unknown in the display state of FIG.

Therefore, the line drawing (sign S) input and displayed according to the present invention is subjected to the drag-and-drop processing as shown in FIG.
To determine (step S13).

As a result, as shown in FIG. 11, the dragged and dropped line image (sign S) is reduced and displayed at the position P1 of the corresponding person. At the same time, the input and displayed line drawing (sign S) changes to a broken line state S ′.
The display changes to. This allows the photographer to confirm that the camera has been moved (step S14).

FIG. 12 shows an example in which a plurality of line drawings are input and displayed in correspondence with FIG. Therefore, FIG.
As shown in FIG. 3, line images S1 and S2 input corresponding to a plurality of photographed image persons are converted into corresponding person positions P1 and P2.
By performing the drag-and-drop process on the image No. 2, the images are reduced and displayed at the corresponding positions.

Further, returning to FIG. 5, it is an operation flow chart of an embodiment in which a line image in a reduced display state is displayed in an enlarged manner by drag-and-drop processing, contrary to the above embodiment.

In FIG. 5, first, a photographed image and a line drawing are displayed (step S20). A corresponding embodiment is shown in FIG. The line image is reduced and displayed at the predetermined position P1 of the captured image person. However, it is difficult to read a line image displayed in a reduced size due to the resolution of the LCD display element 6.

For this purpose, it is moved to the enlarged position by the drag-and-drop process (step S21: FIG. 5). Therefore, the photographed image and the enlarged line image S are displayed and can be read (step S22).

At this time, the amount of information of the line drawing input by handwriting is larger than the information of the line drawing S displayed on the low-resolution display such as the LCD display element 6. Therefore, by storing the information of the handwritten input line drawing in the buffer memory 35 without losing the information amount, when the reduced line image is enlarged and displayed as shown in FIG. The information of the stored line drawing can be used. This makes it possible to display a clear line image.

FIGS. 15 and 16 show still another embodiment according to the present invention. This embodiment is an example of enlarging a line image display together with a captured image. An area FL to be enlarged is specified on the screen of the LCD display element 6 as shown in FIG. The area FL to be enlarged is specified by the pen-type pointing device 46 using the touch tablet 6.
This is performed by moving on A in the same manner as when inputting a line drawing.

Note that, when the user moves on the touch tablet 6A by the pen-type pointing device 46, input of a hand-drawn line drawing or switching of the designation of the area FL is performed as described later with reference to FIGS.
This is performed in connection with the line drawing zooming designation process in step (1).

Next, when the designation of the area FL is confirmed by the execution key 7B (see FIG. 2), the designated zooming range is enlarged and displayed on the entire screen of the LCD display element 6, as shown in FIG. . As a result, the line drawings SS1 to SS3 displayed in a reduced size are displayed in an enlarged manner and can be read.

Returning to FIG. 6 and FIG. 7, in the embodiment shown in FIG. 14 or FIG. 16 and FIG. 17, the operation flow (FIG. 6) for specifying the enlargement (zooming) processing of the line image, 6 is an example of a display screen of the LCD display element 6 of FIG.

When executing the embodiment shown in FIG. 14, FIG. 16, or FIG. 17, the photographer sets the line drawing zooming on. This line drawing zooming on / off setting (step S
1), L is controlled by the CPU 36 as shown in FIG.
An input instruction screen for performing or not performing line drawing zooming is displayed on the CD display element 6.

In response to this display, when "zooming" is instructed by the pen-type pointing device 46, line drawing zooming-on is set. When "no" is instructed, "zooming" is set.
Line drawing zooming off is set.

Accordingly, the CPU 36 determines whether the line drawing zooming is set on or off (step S2). If the line drawing zooming is set to ON, the line drawing zooming flag is set to 1 (step S3). Conversely, if the line drawing zooming is set to off, the line drawing zooming flag is set to 0.
(Step S4).

When the line drawing zooming flag is set to 1, and in the embodiment shown in FIG.
U36 enlarges to a predetermined position and displays the line drawing S.

In the embodiment shown in FIGS. 15 and 16, when the line drawing zooming flag is set to 1, the CP
U36 determines that the movement of the pen-type pointing device 46 on the touch tablet 6A is the designation of the area FL to be enlarged. Next, as described above, when the designation of the area FL is determined, the CPU 36 displays the image in the range of the area FL on the LCD.
The display is controlled so as to be enlarged and displayed on the entire screen of the display element 6.

The setting of the magnification for displaying the line image at the time of handwriting input, the display position, and the setting of the reduction ratio of the line image in the case of moving and reducing the display by the drag-and-drop process are not shown in the drawings. This is performed in the same manner as shown in FIG. That is, an input setting screen is displayed on the LCD display element 6, and the setting can be made by the photographer using the pen-type pointing device 46 to input.

[0080]

As described above, according to the embodiment, even a low-resolution display such as an LCD display device has a function of enlarging and displaying a line image input by handwriting according to the present invention. The line drawing is displayed at the specified position in the specified size in a legible manner.

The amount of information of a line drawing input by handwriting is larger than that of a line drawing displayed on a low-resolution display. For this reason, the information of the handwritten input line drawing is stored in the memory (memory card 24) without any or little loss, so that it can be displayed on a low-resolution display or displayed on a high-definition display. A clear line image can be displayed.

[Brief description of the drawings]

FIG. 1 is a front perspective view of an embodiment in which an image display device to which a line drawing display control method of the present invention is applied is an electronic camera having an electronic imaging function.

FIG. 2 is a rear perspective view of one embodiment of the electronic camera of FIG. 1;

FIG. 3 is a functional block diagram of the electronic camera shown in FIGS. 1 and 2;

FIG. 4 is an operation flow of moving and reducing display of a line drawing according to the present invention.

FIG. 5 is an operation flow of moving and enlarged display of a line drawing according to the present invention.

FIG. 6 is a control operation flow of the enlarged display of FIG. 5;

7 is a display example of the LCD display element 6 of FIG. 2 corresponding to the operation flow of FIG.

FIG. 8 is an example of a still image of a file displayed on the LCD display element 6 of FIG. 2;

FIG. 9 is an LC when a line image is input to the still image in FIG. 8;
6 is a display example of a D display element 6.

10 is a diagram illustrating an operation of moving and displaying a line image on a still image by a drag and drop function in the display example of FIG.

FIG. 11 is a diagram illustrating a result of moving and displaying a line image on a still image in FIG.

FIG. 12 is a display example of the LCD display element 6 when a plurality of line drawings are input.

FIG. 13 is a diagram illustrating a result of moving and displaying a plurality of line images on a still image in FIG.

FIG. 14 is a diagram illustrating an example of enlarging and displaying a line image on a still image at a predetermined position.

FIG. 15 is a diagram illustrating another embodiment of the present invention, in which a line image on a still image is enlarged together with the still image.

16 is a diagram illustrating a display example in which a line image is enlarged together with a still image in the embodiment of FIG.

[Explanation of symbols]

 Reference Signs List 1 electronic camera X1 surface of electronic camera facing object X2 surface of electronic camera facing photographer 2 viewfinder 3 photographic lens 5 speaker 6 LCD display element 6A touch tablet 7 operation key 7A menu key 7B execution key 7C clear key 7D cancel Corner 7E Scroll key 8 Microphone 9 Earphone jack 10 Release switch 11 Power switch 12 Recording switch 20 CCD 24 Memory card 30 Lens drive unit 31 Image processing unit 32 Analog / digital (A / D) conversion circuit 33 Digital signal processor (DSP) 35 Buffer memory 36 CPU 38 A / D-D / A conversion circuit 39 CCD drive unit 40 Detection circuit 47 Frame memory 48 Database 49 CPU control bus 50 Interface

Claims (5)

[Claims] 1. A display control method for a line image in an image display device for displaying a still image and a line image, comprising: displaying a still image on a display element; displaying the line image at a specific position of the display element; A line image display control method, comprising: reducing a line image displayed at a position, moving the line image to an arbitrary position in a display area of the still image, and displaying the line image in a superimposed manner. 2. The display control method according to claim 1, wherein the line image displayed at the specific position is moved to an arbitrary position of the still image by a drag-and-drop process. 3. The line image reduced and displayed at an arbitrary position in the still image according to claim 1,
A display control method for a line image, wherein the image is enlarged and displayed at an original size at a specific position of the display element by a drag-and-drop process. 4. An image display apparatus for displaying a still image and a line image, comprising: a liquid crystal display panel for displaying a still image, a transparent touch tablet plate disposed on the front surface; and a still image data and the touch tablet plate. A frame memory controlled to store input line image data in a superimposed manner, read out the superimposed stored image data, and supply the read data to the liquid crystal display panel; and a line stored in the frame memory. An image display device comprising: a control unit that controls a size of an image and a position at which the line image is stored so as to be superimposed on the still image. 5. The touch tablet panel according to claim 4, wherein the control unit displays a line image input by the touch tablet panel at a first predetermined position of the liquid crystal display panel in a predetermined size. In the frame memory, the size of the line image superimposed on the still image and the storage position of the frame memory are controlled so that the line image is displayed at a predetermined reduction ratio at the moving position of the line image specified by An image display device comprising: