JP2006229751A - Digital camera device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital camera device capable of producing an optimal image by which a photographer can visually recognize and simultaneously confirm the whole image signal and the status of the focus obtained from an imaging device, without the need of a special operation by the photographer. <P>SOLUTION: An imaging device 11 outputs an object image projected with a lens 10 as a video signal. A signal processor 12 transforms the video signal outputted by the imaging device 11 into digital image data. A resolution converter 15 converts the digital image data into digital image data of a predetermined resolution. A display unit 19 can form first image region 191 and second image region 192 at least mutually independently. In photographing, the whole camera is displayed on the first image region 191, and a partial image of high resolution for focal status confirmation is displayed on the second image region 192. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a digital camera device suitable for a case where a still image shooting function is provided.

  2. Description of the Related Art Conventionally, digital camera devices that record a subject image obtained on a solid-state imaging device through an optical system such as a lens as electronic data have been widely used. Even in an electronic device typified by a mobile phone, a still image recording function is realized by mounting the above digital camera device, and the resolution of the mounted digital camera device is improved day by day, and now mega (1 million) pixels. More than that is beginning to be adopted.

  Such an electronic device generally includes a display device typified by an LCD (Liquid Crystal Display), and displays an image output from a digital camera device at the time of still image shooting. By decoding and displaying the stored image data, it can be used as a viewer.

  Generally, the resolution of a display device mounted on an electronic device typified by a mobile phone is about 100 to 300 in terms of both the number of horizontal pixels and the number of vertical lines. That is, the number of displayable pixels in this case can be regarded as 10,000 pixels to 90,000 pixels. Therefore, when displaying an output image of a digital camera device exceeding megapixels on this display, it is necessary to reduce the resolution of the output image.

Here, when a still image is captured by an electronic apparatus equipped with a digital camera device, an image with a reduced resolution is displayed on the display means and used as a viewfinder. There is a problem that it is difficult to determine the in-focus state. With respect to this problem, in the conventional electronic digital camera device, the display device selectively selects the entire image signal obtained from the image sensor and the image signal of the AF area by the operation of the photographer. When the image signal of the AF area is displayed, the image of the AF area can be enlarged and displayed. (For example, see Patent Document 1)
Japanese Patent Laid-Open No. 11-164176

  However, in the configuration of Patent Document 1, since the photographer cannot view the entire image and the image of the AF area at the same time, it is difficult to check the photographing conditions, which hinders the convenience of the photographer.

  The present invention has been made in view of such a point. For example, a portion that the photographer pays attention to, such as a portion that serves as a reference for focus adjustment, has a high resolution in an image area that is provided independently of other portions. An object of the present invention is to provide a digital camera device that enables display and enables a photographer to view at least two image areas at the same time, and to perform shooting while accurately checking shooting conditions.

  In order to solve this problem, a digital camera device according to the present invention includes an image sensor that outputs a subject image projected by a lens as a video signal, and a signal processing unit that converts the video signal output from the image sensor into digital image data. Resolution conversion means for converting the digital image data into digital image data of a predetermined resolution, display means capable of forming at least a first image area and a second image area independent of each other, and the resolution conversion means And display control means for generating drive signals for displaying the digital image data of different resolutions subjected to resolution conversion in the first image area and the second image area of the display means, respectively. take.

  According to the present invention, a portion that is photographed by a photographer can be displayed with sufficient resolution in an image display area provided independently of other portions, and the photographer can display at least two images having different display resolutions. The display area can be viewed at the same time, and there is an effect that it is possible to shoot while confirming appropriate shooting conditions.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(One embodiment)
FIG. 1 is a block diagram showing a configuration of a digital camera apparatus according to an embodiment of the present invention.

  In FIG. 1, a digital camera device includes a lens 10, an image sensor 11, a signal processing unit 12, a memory control unit 13, a memory 14, a resolution conversion unit 15, a compression unit 16, a storage unit 17, The display control part 18, the display part 19, the control part 20, the 1st switch 21a, and the 2nd switch 21b are mainly comprised.

  The digital camera device starts the entire operation when the control unit 20 detects the pressing of the first switch 21a.

  Light from the subject enters the image sensor 11 through the lens 10 to form a subject image. The image sensor 11 performs photoelectric conversion on the incident light from the subject, obtains the video signal 100, and outputs the video signal 100 to the signal processing unit 12.

  The signal processing unit 12 performs signal processing such as computation for generating a luminance component and a color difference component and white balance adjustment on the input video signal 100 to generate first digital image data 101, and performs memory control. To the unit 13.

  The memory control unit 13 controls writing and reading of data with respect to the memory 14. That is, the first digital image data 101 input from the signal processing unit 12 is written to the memory 14, and the data stored in the memory 14 is read according to a request from the control unit 20, and the resolution is converted as the second digital image data 102. To the unit 15.

  The resolution conversion unit 15 performs resolution conversion on the second digital image data 102 in accordance with a request from the control unit 20 to generate third digital image data 103, and outputs the third digital image data 103 to the compression unit 16 and the display control unit 18. Here, the resolution conversion process performed by the resolution conversion unit 15 includes enlargement, equal magnification, and reduction processes. Further, the resolution conversion unit 15 can perform resolution conversion at different magnifications in the horizontal direction and the vertical direction of the second digital image data 102 according to the request of the control unit 20.

  The compression unit 16 performs compression processing on the input third digital image data 103 to generate accumulated image data 104 and outputs the accumulated image data 104 to the accumulation unit 17. The compression process of the compression unit 16 operates, for example, when the control unit 20 detects pressing of the second switch 21b.

  Here, as the compression processing, for example, there is a JPEG method or the like, but other methods may of course be used, or the third digital image data 103 is uncompressed as it is as the stored image data 104 and output to the storage unit 17. May be. That is, in the digital camera device according to an embodiment of the present invention, the resolution conversion unit 15 uses the first digital image data 101 generated by the image sensor 11 and the signal processing unit 12 to suit each purpose such as display and storage. The third digital image data 103 having the same resolution can be generated, stored and displayed.

  The accumulation unit 17 is a storage element such as a RAM, a flash memory, and a removable memory card, and stores and accumulates the accumulated image data 104 output from the compression unit 16.

  The display control unit 18 generates a drive signal 105 for displaying the third digital image data 103 input from the resolution conversion unit 15 on the display unit 19.

  The control unit 20 is configured around a microprocessor, and controls and controls the entire operation of the digital camera device.

  FIG. 2 is an explanatory diagram illustrating an example of an internal configuration of the display control unit 18 and a display layout in the display unit 19. 2, the same blocks as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The display control unit 18 mainly includes a frame memory 180, a display area cutout unit 181, a frame memory control unit 182, and a drive unit 183. The display unit 19 shows a first image area 191 and a second image area 192.

  The frame memory 180 stores image data to be displayed on the display unit 19 and has a storage capacity equal to at least the display resolution of the display unit 19.

  The display area cutout unit 181 cuts out data of an area corresponding to the control of the control unit 20 from the third digital image data 103 input from the resolution conversion unit 15 and outputs the data to the frame memory control unit 182.

  The frame memory control unit 182 controls writing and reading of data with respect to the frame memory 180. That is, the data input from the display area cutout unit 181 is written into the frame memory 180 and the data stored in the frame memory 180 is read out and output to the drive unit 183.

  The drive unit 183 generates a drive signal 105 to be displayed on the display unit 19 from the data read from the frame memory 180 and outputs the drive signal 105 to the display unit 19.

  The display unit 19 displays the image data stored in the frame memory 180 based on the input drive signal 105.

  Here, for example, when displaying the image data of the entire area captured by the image sensor 11 in the first image area 191, first, the resolution converting unit 15 sets the resolution of the second digital image data 102 to the first image area 191. The third digital image data 103 is generated by converting to a resolution equal to that of the image area 191. Next, the display area cutout unit 181 cuts out the entire image area of the input third digital image data 103 and outputs it to the frame memory control unit 182. Then, the frame memory control unit 182 writes the image data input from the display area cutout unit 181 to the address where the first image area 191 is stored in the frame memory 180.

  Similarly, for example, when a part of the image compressed by the compression unit 16 is displayed in the second image area 192, the resolution conversion unit 15 first converts the resolution of the second digital image data 102 to the stored image. The third digital image data 103 is generated by converting the resolution. Next, the display area cutout unit 181 inputs the third digital image data 103 so that one pixel of the input third digital image data 103 corresponds to one pixel of the second image area 192. The image area having the same resolution as that of the second image area 192 is cut out from the image data and output to the frame memory control unit 182. Then, the frame memory control unit 182 writes the image data input from the display area cutout unit 181 to the address where the second image area 192 is stored in the frame memory 180. Note that the display area cutout unit 181 cuts out a central area of an image captured by the normal image sensor 11. This corresponds to the normal AF area being set at the center of the screen by default. Therefore, when the photographer can freely set the AF area, and there is a means for setting the AF area separately, the second image area 192 and the area corresponding to the position of the AF area set separately are provided. An image area with the same resolution can be cut out.

  As described above, according to the present embodiment, image data captured by the image sensor 11 is converted to an arbitrary resolution, and image data in an arbitrary area is cut out from the image data after the resolution conversion and displayed. An arbitrary size can be displayed at an arbitrary position of the unit 19.

  In particular, the frame memory control unit 182 uses image data obtained by continuously performing processing in the resolution conversion unit 15 and the display area cutout unit 181 on the continuous video signal 100 output from the image sensor 11. Are continuously written to the same address in the frame memory 180, so that a moving image can be displayed on the display unit 19. Further, by stopping writing to the frame memory 180 at an arbitrary time, the image data stored in the frame memory 180 at that time, that is, the image data displayed on the display unit 19 is displayed as a still image (freeze display). can do.

  Further, by holding the first digital image data 101 in the memory 14, the resolution conversion unit 15 performs different resolution conversion on the same first digital image data 101, and the compression unit 16 or the display control unit 18 can be output. Similarly, image data having different resolutions can be generated from the same first digital image data 101, and these can be simultaneously displayed in the first image area 191 and the second image area 192, respectively.

  In the example of FIG. 2, an example in which the display layout is performed with the first image area 191 as a large screen and the second image area 192 as a small screen is shown, but this does not limit the present invention, and the resolution conversion unit 15, various display layouts for the position and size of each image area by resolution conversion at 15, control of the image data cutout area by the display area cutout unit 181, and write address control to the frame memory 180 by the frame memory control unit 182. Is possible.

  FIGS. 3 to 6 show the video signal 100, the first digital image data 101, the second digital image data 102, and the third signal when the digital camera apparatus according to the present embodiment performs still image shooting. It is a figure which shows the example of the resolution of the digital image data 103 and the storage image data 104. FIG. 3 to 7, the same blocks as those in FIG. 1 or 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 3 is an example in which one pixel of the image before being compressed by the compression unit 16 corresponds to one pixel of the display unit 19 in the image displayed in the second image region 192.

  In FIG. 3, the resolution of the video signal 100a output from the image sensor 11 is M pixels (horizontal direction) × N lines (vertical direction), and the first digital image data 101a and the second digital image data 102a The resolution is also M pixels × N lines.

  The resolution conversion unit 15 generates the third digital image data 103a by converting the resolution of the second digital image data 102a to the resolution of the first image area 191 (X pixels × Y lines), and the display control unit 18 is output. The display control unit 18 writes the input third digital image data 103 a to the address where the first image area 191 is stored in the frame memory 180.

  Further, the resolution conversion unit 15 compresses the resolution of the second digital image data 102a by the compression unit 16 and converts it to the image resolution (m pixels × n lines) to be stored in the storage unit 17, thereby converting the third digital image data 102a to the third resolution. Digital image data 103 b is generated and output to the compression unit 16 and the display control unit 18. The compression unit 16 compresses the third digital image data 103 b to generate accumulated image data 104 and outputs the accumulated image data 104 to the accumulation unit 17. The accumulation unit 17 accumulates accumulated image data 104. The display control unit 18 cuts out an area having a resolution equal to the resolution (x pixels × y lines) of the second image area 192 from the input third digital image data 103 b, and stores this in the frame memory 180. The image area 192 is written to the stored address.

  The display control unit 18 generates a drive signal 105 for displaying the data stored in the frame memory 180 on the display unit 19. The display unit 19 displays an image according to the drive signal 105. Note that, as schematically shown in FIG. 3, an image based on the third digital image data 103 b that can generally take up to a megapixel size is generally displayed on the display unit 19 having 10,000 to 90,000 pixels. It is larger than the image based on the third digital image data 103a. This indicates that the resolution of the image by the third digital image data 103b and the second image region 192 cut out from the third digital image data 103b is higher than the resolution of the image by the third digital image data 103a and is high definition. ing.

  As described above, in the digital camera device according to the present embodiment, the entire video signal 100 a obtained from the image sensor 11 is displayed in the first image area 191 and simultaneously compressed in the second image area 192 by the compression unit 16. A high-precision image can be displayed such that one pixel of the displayed image corresponds to one pixel of the display unit 19. As a result, the image displayed in the second image area 192 is compressed because one pixel of the image to be compressed always corresponds to one pixel of the display unit 19 even if the resolution of the image to be compressed changes. According to the resolution of the image, the focus state can be confirmed based on a high-definition image equal to the resolution of the image to be compressed, which contributes to improving the convenience of the photographer. In other words, the photographer can check the focus state with the resolution of the image stored in the storage unit 17 and the image resolution of the photographed image intended by the photographer, such as the megapixel level. Furthermore, since the image displayed in the second image area 192 is cut out from the third digital image data 103b before being compressed, it is not affected by resolution degradation due to compression in the compression unit 16. Optimum image quality can be obtained.

  FIG. 4 shows an image displayed in the second image area 192 with a higher definition than that shown in FIG. 3, and one pixel of the image output from the image sensor 11 becomes one pixel of the display means. It is an example made to correspond.

  In FIG. 4, from a video signal 100a output from the image sensor 11, first digital image data 101a, second digital image data 102a, third digital image data 103a, and third digital image data 103b are displayed. Since the accumulated image data 104 is generated and the third digital image data 103a is displayed in the first image area 191 is the same as that described in FIG. 3, detailed description thereof is omitted.

  The resolution conversion unit 15 generates the third digital image data 103 c by outputting the second digital image data 102 a as it is with the same resolution, and outputs the third digital image data 103 c to the display control unit 18. The display control unit 18 cuts out a region having a resolution equal to the resolution (x pixels × y lines) of the second image region 192 from the input third digital image data 103 c and stores this in the frame memory 180. The image area 192 is written to the stored address.

  The display control unit 18 generates a drive signal 105 for displaying the data stored in the frame memory 180 on the display unit 19. The display unit 19 displays an image according to the drive signal 105.

  As described above, in the digital camera device according to the present embodiment, the entire video signal 100 a obtained from the image sensor 11 is displayed in the first image area 191, and at the same time, the image sensor 11 outputs to the second image area 192. It is possible to display an image in which one pixel of the image corresponds to one pixel of the display means. In particular, the image displayed in the second image area 192 is a more optimal image for confirming the focus state of the subject image formed on the image sensor 11, and is convenient for the photographer who places importance on focusing. Contributes to improvement.

  FIG. 5 is a second example in which one pixel of the image compressed by the compression unit 16 corresponds to one pixel of the display means in the image displayed in the second image region 192. FIG. 5 shows an example in which the resolution of the video signal 100 output from the image sensor 11 is different before the accumulated image data 104 is generated (during preview) and when the accumulated image data 104 is generated (during still image shooting). Show.

  In FIG. 5, the resolution of the video signal 100b output from the image sensor 11 during the preview is M ′ pixels (horizontal direction) × N ′ line (vertical direction), and the first digital image data 101b during preview and the first The resolution of the second digital image data 102b is also M ′ pixels × N ′ lines.

  The resolution conversion unit 15 generates the third digital image data 103d by converting the resolution of the second digital image data 102b into the resolution of the first image area 191 (X pixels × Y lines), and the display control unit 18 is output. The display control unit 18 writes the input third digital image data 103 d to the address where the first image area 191 is stored in the frame memory 180.

  Further, the resolution conversion unit 15 compresses the resolution of the second digital image data 102b by the compression unit 16 and converts it into the resolution of the image (m pixels × n lines) to be stored in the storage unit 17, thereby converting the third digital image data 102b Digital image data 103e is generated and output to the display control unit 18. The display control unit 18 cuts out an area having a resolution equal to the resolution (x pixels × y lines) of the second image area 192 from the input third digital image data 103 e, and stores this in the frame memory 180. The image area 192 is written to the stored address.

  The display control unit 18 generates a drive signal 105 for displaying the data stored in the frame memory 180 on the display unit 19. The display unit 19 displays an image according to the drive signal 105.

  On the other hand, in FIG. 5, the resolution of the video signal 100 a output from the image sensor 11 during still image shooting is M pixels (horizontal direction) × N lines (vertical direction), and hereinafter, the first digital image data 101 a and The process of generating the second digital image data 102a, the third digital image data 103b, and the stored image data 104 is the same as that described with reference to FIG.

  Here, the resolution conversion performed by the resolution conversion unit 15 may be performed at different magnifications in the horizontal direction and the vertical direction of the image. In this way, when the aspect ratio (M ′: N ′) of the video signal 100b output from the image sensor 11 during preview is different from the aspect ratio (M: N) of the image sensor 11 (for example, from the image sensor 11 during preview). Even when the output video signal 100b is thinned out to only 1/2 in the vertical direction), the aspect ratio of the image sensor 11 displays the aspect ratio of the images displayed in the first image region 191 and the second image region 192. It becomes possible to make it equal to the ratio.

  As described above, in the digital camera device according to the present embodiment, the entire video signal 100b obtained from the image sensor 11 is displayed in the first image area 191 and simultaneously compressed by the compression unit 16 in the second image area 192. An image in which one pixel of the image to be displayed corresponds to one pixel of the display unit 19 can be displayed. As a result, the image displayed in the second image area 192 is compressed because one pixel of the image to be compressed always corresponds to one pixel of the display unit 19 even if the resolution of the image to be compressed changes. The focus state can be confirmed with an image having an optimal resolution corresponding to the resolution of the image, and the aspect ratio of the image displayed on the display unit 19 at the time of preview can be made equal to the aspect ratio of the image sensor 11. Contributes to improved convenience for photographers.

  FIG. 6 is an example in which in the image displayed in the second image area 192, one pixel in the horizontal direction of the image output from the image sensor 11 corresponds to one pixel of the display means. FIG. 6 illustrates an example in which the resolution of the video signal 100 output from the image sensor 11 is different before the accumulated image data 104 is generated (during preview) and when the accumulated image data 104 is generated (during still image shooting). Show.

  In FIG. 6, the resolution of the video signal 100b output from the image sensor 11 at the time of preview is M ′ pixels (horizontal direction) × N ′ line (vertical direction), and hereinafter, the first digital image data 101b at the time of preview and The process of generating the second digital image data 102b and the third digital image data 103d and displaying the third digital image data 103d in the first image area 191 is the same as the description in FIG. Therefore, detailed description is omitted.

  The resolution conversion unit 15 generates the third digital image data 103f by converting the resolution of the second digital image data 102b to N ″ without changing the resolution in the horizontal direction and changing the resolution in the vertical direction to N ″. Output to the display control unit 18. The display control unit 18 cuts out a region having a resolution equal to the resolution (x pixels × y lines) of the second image region 192 from the input third digital image data 103 f and stores this in the frame memory 180. The image area 192 is written to the stored address.

  Here, N ″ is a numerical value obtained by the calculation of N ″ = N × M ′ ÷ M. By doing so, the aspect ratio (M ′: N ″) of the third digital image data 103 f becomes equal to the aspect ratio (M: N) of the image sensor 11.

  The display control unit 18 generates a drive signal 105 for displaying the data stored in the frame memory 180 on the display unit 19. The display unit 19 displays an image according to the drive signal 105.

  On the other hand, in FIG. 6, the resolution of the video signal 100a output from the image sensor 11 at the time of still image shooting is M pixels (horizontal direction) × N lines (vertical direction), and hereinafter, the first digital image data 101a, The process of generating the second digital image data 102a, the third digital image data 103b, and the stored image data 104 is the same as that described with reference to FIG.

  As described above, in the digital camera device according to the present embodiment, the resolution of the third digital image data 103f generated by converting the resolution in the vertical direction into N ″ by the resolution conversion unit 15 is stored in the storage unit 17. The entire video signal 100b obtained from the image sensor 11 is displayed in the first image area 191 and at the same time displayed in the second image area 192 within the range allowed to the photographer as equivalent to the resolution of the still image. The image to be displayed is an optimal image for confirming the focus state of the subject image formed on the image sensor 11, and the aspect ratio of the image displayed on the display unit 19 during preview is equal to the aspect ratio of the image sensor 11. This contributes to improving the convenience of the photographer.

  Note that when the video signal 100b output from the image pickup device 11 during preview is about the half of the vertical resolution as described above, the resolution is such that there is no practical problem regarding the confirmation of the focus state. The second image area 192 can be displayed. In this case, such correction display can be realized with a simple configuration. If practically unacceptable, the display on the original second image area 192 as shown in FIG. 3 may be performed.

  Although the example in which the vertical resolution is corrected has been described with reference to FIG. 6, this can be similarly performed for the horizontal resolution correction. Further, it is possible to easily correct both the horizontal direction and the vertical direction at the same time as long as it can be corrected to a practically acceptable level.

  As described above, according to the digital camera device of the present invention, the photographer does not need any special operation, and the photographer can obtain an optimal image for confirming the entire image signal obtained from the image sensor and the focus state. At the same time, it can be visually recognized, and the convenience of the photographer can be improved.

  FIG. 7 is an explanatory diagram showing an example of an electronic device incorporating the digital camera device of the present embodiment. In FIG. 7, the same blocks and portions as those in FIG. 1 or FIG.

  The electronic device in FIG. 7 is a mobile phone, and mainly includes a housing 80, operation keys 81, and a display unit 19. The operation key 81 includes an enter key 81a and a digital camera device key 81b. The digital camera device is built in the housing 80 and is arranged so that the lens 10 faces the subject when the photographer looks at the display unit 19.

  Although not shown in FIG. 7, the image sensor 11 is disposed inside the housing 80 immediately below the lens 10, and includes a signal processing unit 12, a memory control unit 13, a memory 14, a resolution conversion unit 15, and a compression unit. The unit 16, the display control unit 18, and the control unit 20 are disposed inside the housing 80. The storage unit 17 is configured by a memory element built in the housing, a removable memory card, or the like.

  In the mobile phone of FIG. 7, for example, when the digital camera device function is turned on by the digital camera device key 81b, the entire image obtained from the image sensor 11 is displayed in the first image region 191 and at the same time the second image region. In 192, an optimal image for the photographer to confirm the focus state is displayed. The function of the digital camera device key 81b corresponds to the function of the first switch 21a in FIG.

  After that, by operating the enter key 81a, the compression unit 16 performs compression processing on the input third digital image data 103 to generate accumulated image data 104, which is output to the accumulation unit 17, so that the still image Shooting is performed. The function of the enter key 81a corresponds to the function of the second switch 21b in FIG.

  As described above, in the mobile phone that is an electronic device equipped with the digital camera device according to the present embodiment, the photographer does not need a special operation, and the photographer displays the entire image signal obtained from the image sensor and the focus state. Since an image optimal for confirmation can be viewed at the same time, the convenience of the electronic device including the digital camera device of the present invention can be improved.

  As described above, according to the present invention, a digital camera device suitable for an electronic apparatus having a still image shooting function and having a display means, that is, a photographer does not need a special operation and the photographer takes an image. It is possible to provide a digital camera device that can simultaneously view the entire image signal obtained from the element and the optimum image for confirming the focus state and improve the convenience of the photographer.

  The same effects as described above can be obtained in a mobile phone, a fixed phone, an information terminal, etc., which are electronic devices equipped with the digital camera device of the present invention.

1 is a block diagram showing an example of the configuration of a digital camera device according to an embodiment of the present invention. Explanatory drawing which shows the internal structure of the display control part which comprises the digital camera apparatus based on the said embodiment, and the example of a display layout Explanatory drawing showing an example of resolution conversion when still image shooting is performed with the digital camera device according to the above embodiment Explanatory drawing showing an example of resolution conversion when still image shooting is performed with the digital camera device according to the above embodiment Explanatory drawing showing an example of resolution conversion when still image shooting is performed with the digital camera device according to the above embodiment Explanatory drawing showing an example of resolution conversion when still image shooting is performed with the digital camera device according to the above embodiment Explanatory drawing which shows the example of the electronic device provided with the digital camera apparatus which concerns on the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lens 11 Image pick-up element 12 Signal processing part 13 Memory control part 14 Memory 15 Resolution conversion part 16 Compression part 17 Accumulation part 18 Display control part 180 Frame memory 181 Display area cutout part 182 Frame memory control part 183 Drive part 19 Display part 191 1st 1 image area 192 second image area 20 control unit 21a first switch 21b second switch 80 housing 81 operation key 81a decision key 81b digital camera device key 100 video signal 101 first digital image data 102 second Digital image data 103 Third digital image data 104 Accumulated image data 105 Drive signal

Claims (7)

An image sensor that outputs a subject image projected by a lens as a video signal;
Signal processing means for converting the video signal output by the image sensor into digital image data;
Resolution conversion means for converting the digital image data into digital image data of a predetermined resolution;
Display means capable of forming at least a first image area and a second image area independent of each other;
Display control means for generating drive signals for respectively displaying digital image data of different resolutions subjected to resolution conversion by the resolution conversion means in the first image area and the second image area of the display means;
A digital camera device comprising:   The display control means displays an image corresponding to the entire area captured by the image sensor in the first image area, and a part of the area captured by the image sensor in the second image area. A digital camera device that generates a drive signal for displaying a corresponding image. Image storage means for storing digital image data subjected to resolution conversion at a predetermined resolution set by the user by the resolution conversion means;
The image displayed in the second image area is an image in which one pixel of digital image data having a predetermined resolution set by the user corresponds to one pixel of the second image area. Item 3. The digital camera device according to Item 2.   The image displayed in the second image area is an image in which one pixel of a video signal output from the imaging element corresponds to one pixel of the second image area. Digital camera device.   3. The digital camera apparatus according to claim 1, further comprising a compression unit that compresses the digital image data subjected to resolution conversion by the resolution conversion unit in order to store the digital image data in the image storage unit.   6. The digital camera device according to claim 5, wherein the image displayed in the second image area is an image in which one pixel of the digital image data compressed by the compression unit corresponds to one pixel of the display unit.   An electronic device comprising the digital camera device according to any one of claims 1 to 6.

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