JP2000217078A - Picture reproducing device and picture recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the operability by adjusting a picture frame through scrolling in more detail when a magnification is larger and to reflect the intention of a user accurately on decision of a magnified display area. SOLUTION: When a photographer desires scrolling of a magnified picture, the photographer depresses a cross key 9 shown in figure in a desired direction of scrolling. Then a control microcomputer 7 decides the scrolling direction on the basis of the depressed direction of the cross key 9. When the scrolled direction is decided, the control microcomputer 7 calculates scroll widths dx, dy. When the magnification is large, the scroll widths dx, dy are calculated smaller than those when the magnification is small. For example, the scroll widths are calculated to be 1/10 of one side of a magnified picture.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an image reproducing apparatus for reproducing and displaying image data recorded on a recording medium and an image recording / reproducing apparatus.

[0002]

2. Description of the Related Art A digital image created by a digital still camera or the like can be enlarged and displayed as a part of an original image by subjecting image data to resolution conversion processing. At this time, if there is a scroll function of sequentially moving the area to be enlarged and displayed in the original image while viewing the enlarged image, the enlarged display area can be easily determined.

[0003]

By the way, in the conventional scroll processing, the scroll amount is constant, for example, every ten pixels, regardless of the enlargement ratio. In such a processing method, as shown in FIGS. 6A and 6B, the scroll change amount increases as the enlargement magnification increases. That is, FIG. 6A shows a display example in which the image is scrolled by one stage when the magnification is low, and FIG. 6B shows a display example in which the image is scrolled one step when the magnification is high. appear. However, as described above, since the scroll function is used to determine the enlarged display area, it is not operable to increase the apparent scroll amount in accordance with the enlargement magnification, and the intention of the user is enlarged. Cannot be accurately reflected in display area determination.

The present invention has been made in view of the above circumstances. As the enlargement magnification is larger, finer image frame adjustment by scrolling is possible, the operability is improved, and the user's intention is set in the enlarged display area. It is an object of the present invention to provide an image reproducing apparatus and an image recording / reproducing apparatus which can accurately reflect a decision.

[0005]

According to the present invention, there is provided an image reproducing apparatus for reproducing and displaying image data recorded on a recording medium.
Image signal processing means for performing predetermined image signal processing on image data from the recording medium, image display means for displaying an image signal from the image signal processing means, and image signal displayed on the image display means And control means for changing a scroll width in accordance with an enlargement magnification when scrolling an enlarged display area for enlarging and displaying an arbitrary partial area.

Specifically, the control means increases the scroll width when the magnification is low, and decreases the scroll width when the magnification is high.

Further, an image recording / reproducing apparatus according to the present invention comprises:
In order to solve the above-mentioned problems, while recording image data on a recording medium, an image recording / reproducing apparatus that reproduces and displays image data from a recording medium, when recording the image data on a recording medium, Image signal processing means for performing predetermined image signal processing at the time of reproduction; and image display means for displaying an image signal from the image signal processing means. An arbitrary one of the image signals displayed on the image display means is provided. A control unit that changes a scroll width according to an enlargement magnification when scrolling the enlarged display area for enlarging and displaying the partial area.

Specifically, the control means increases the scroll width when the magnification is low, and decreases the scroll width when the magnification is high.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. This embodiment is a recording / reproducing device provided inside an electronic still camera. FIG. 1 shows the configuration of the recording / reproducing apparatus and its peripherals.

The image information captured by the CCD 1 when the shutter button of the electronic still camera is pressed by the photographer is recorded on the memory card 6 and arbitrarily taken out of the memory card 6 and displayed on the image display device 3. You.

An image picked up by the CCD 1 in FIG. 1 is processed by an image processing circuit 2 and displayed on an image display device 3. Here, the image display device 3 is, for example, a built-in liquid crystal panel or EVF, or a television monitor connected to the outside.

Hereinafter, the overall configuration and operation of the recording / reproducing apparatus will be described.

When the photographer presses the shutter button, CC
The image taken at D1 is passed through the image processing circuit 2 to DR
Recorded once in AM4. The image recorded in the DRAM 4 is subjected to a compression process by the image processing circuit 2, and is again subjected to DR processing.
It is written back to AM4. The compressed image data written back to the DRAM 4 is recorded on the memory card 6 via the memory card controller 5.

To reproduce an image recorded on the memory card 6, the compressed image data is read from the memory card 6 via the memory card controller 5 and the DRA is read.
Record in M4. The compressed image data is sent to an image processing circuit 2
And write it back to the DRAM 4. The image data written back to the DRAM 4 is displayed on the image display device 3 after being processed by the image processing circuit 2.

The movement of the image data between the respective blocks is controlled by a control microcomputer (microcomputer) 7.

The control microcomputer 7, when enlarging and displaying the above-mentioned image, operates in the same manner as in the case of normal reproduction display.
The expanded image data is recorded in M4.

The control microcomputer 7 inputs a part of the original image recorded in the DRAM 4 to the resolution converter 8.
The input area is determined by the control microcomputer 7 according to the enlargement ratio. The resolution conversion device 8 converts the resolution of the input image into an image having a size necessary for display on the image display device 3, and writes the converted image back into the DRAM 4. The enlarged image rewritten is
After being processed by the image processing circuit 2, it is displayed on the image display device 3.

Next, the scroll processing of the enlarged image will be described with reference to the flowchart of FIG. 2 and the display example of FIG. The portion surrounded by the image frame 31 in FIG. 3 is the original image.
An area surrounded by the image frame 32 indicated by a solid line in the original image is an area currently enlarged and displayed.

When scrolling the enlarged image, the photographer presses the cross key 9 in FIG. 1 in the direction in which scrolling is desired in step S1 in FIG. Then, in step S2, the control microcomputer 7 determines a scroll direction from the direction in which the cross key 9 is pressed.

Next, when the scroll direction is determined,
The control microcomputer 7 calculates the scroll widths dx and dy from the magnification in step S3. At this time, when the enlargement ratio is large, the scroll width dx,
Calculate so that dy is small. In this example, the scroll width is calculated as, for example, 1/10 of one side of the enlarged image.

If the scroll width is determined in step S3,
In step S4, the control microcomputer 7 determines a new area to be enlarged based on the currently displayed area. In FIG. 3, an area surrounded by an image frame 33 indicated by a broken line in the original image is the determined area. And the control microcomputer 7
Performs enlarged display processing on the newly determined area.

Next, an electronic still camera incorporating the recording / reproducing apparatus shown in FIG. 1 will be described with reference to FIGS. FIG. 4 is a front view of the electronic still camera 11,
FIG. 5 is a perspective view from the rear.

The electronic still camera 11 includes a camera body 12
A photographing unit 13 is attached to the upper part of the camera so as to be rotatable in the front-rear direction. The recording / reproducing apparatus shown in FIG. 1 is built in the camera body 12, and the memory card 6, which is a recording medium, is housed so as to be able to be taken in and out. Have been. Further, a lens unit 15 and a strobe unit 16 are arranged in the photographing unit 13 at a required interval in the horizontal direction.

The electronic still camera 1 thus configured
In one camera body 12, an outer casing 21 is formed by combining a front panel 22 and a rear panel 23. A concave portion 21a is formed in an upper portion of the outer casing 21 to rotatably mount the photographing unit 13 thereon.

An insertion opening 25 for loading the memory card 6 is formed in the outer casing 21 of the camera body 12 at one corner on the bottom surface 21b side. A lid opening / closing device 40 that opens and closes is provided.

The provision of the recording / reproducing device allows the electronic still camera 11 to perform finer image frame adjustment by scrolling on the display device 3 shown in FIG. Thus, the intention of the user can be accurately reflected on the determination of the enlarged display area.

In the above embodiment, the recording / reproducing apparatus provided inside the electronic still camera has been described.
An embodiment may be an image reproducing apparatus that simply reproduces image data recorded on a memory card. In that case, the configuration may be such that the CCD 1 is omitted in FIG. This image reproducing apparatus can be applied to, for example, an image display apparatus such as a so-called viewer that reads out image data taken by an electronic still camera or the like from a removable memory card and displays the image on a display on a tube.

Also, it has been described above that the image compression / expansion processing is performed by the image processing circuit 2 and the resolution conversion is performed by the resolution conversion device 8. Processing may be performed. Also, it has been described that the image data subjected to the compression / expansion / resolution conversion processing is recorded in the DRAM, but this is merely an example, and other system configurations are also conceivable.

[0029]

According to the present invention, the finer the image frame can be adjusted by scrolling, the larger the enlargement magnification becomes.
The operability is improved, and the intention of the user can be accurately reflected on the determination of the enlarged display area.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a scroll width determination process performed by the recording / reproducing apparatus.

FIG. 3 is a diagram showing a display example for specifically explaining the scroll width determination processing.

FIG. 4 is a front view of an electronic still camera incorporating the recording / reproducing device.

FIG. 5 is a perspective view of the electronic still camera as viewed from behind.

FIG. 6 is a diagram illustrating a display example for explaining scroll processing by a conventional image reproducing device.

[Explanation of symbols]

2 image processing circuit, 3 image display device, 6 memory card, 7 control microcomputer, 8 resolution conversion device, 11
Electronic still camera

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Claims (10)

[Claims] 1. An image reproducing apparatus for reproducing and displaying image data recorded on a recording medium, wherein said image signal processing means performs predetermined image signal processing on image data from said recording medium to generate an image signal. Image display means for displaying an image signal from the image signal processing means, and when scrolling an enlarged display area for enlarging and displaying an arbitrary partial area of the image signal displayed on the image display means,
An image reproducing apparatus comprising: control means for changing a scroll width according to an enlargement magnification. 2. The image processing apparatus according to claim 1, further comprising: resolution conversion means for converting the resolution of the input image signal, wherein an arbitrary partial area of the image signal is enlarged and displayed using the resolution conversion means. Image playback device. 3. The image reproducing apparatus according to claim 1, wherein said control means increases the scroll width when said enlargement magnification is low, and decreases the scroll width when said enlargement magnification is high. 4. The image reproducing apparatus according to claim 1, wherein said control means determines the scroll width so as to have a fixed ratio with respect to the enlarged display area. 5. The image reproducing apparatus according to claim 1, wherein the recording medium is a built-in memory or a removable recording medium. 6. An image recording and reproducing apparatus for recording image data on a recording medium and reproducing and displaying the image data from the recording medium, wherein the image data is recorded on the recording medium or reproduced from the recording medium. Image signal processing means for performing predetermined image signal processing on the image signal; image display means for displaying an image signal from the image signal processing means; and an enlarged display of an arbitrary part of the image signal displayed on the image display means. When scrolling through the enlarged display area,
An image recording / reproducing apparatus, comprising: control means for changing a scroll width according to an enlargement magnification. 7. The image processing apparatus according to claim 6, further comprising: resolution conversion means for converting the resolution of the input image signal, wherein an arbitrary partial area of the image signal is enlarged and displayed using the resolution conversion means. Image recording and reproducing apparatus. 8. The image recording / reproducing apparatus according to claim 6, wherein the control means increases the scroll width when the magnification is low, and decreases the scroll width when the magnification is high. 9. The image recording / reproducing apparatus according to claim 6, wherein the control means determines the scroll width so as to have a fixed ratio with respect to the enlarged display area. 10. The image recording / reproducing apparatus according to claim 6, wherein said recording medium is a built-in memory or a removable recording medium.