JP2005010903A - Electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cellular telephone 1 that facilitates extraction and enlargement of an image. <P>SOLUTION: For extraction from an original image 31, the cellular telephone 1 displays a display image 36 on a first display part 17 and displays a trimming frame 37 over the display image 36. The size of the trimming frame 37 is fixed and the display image 36 can be scaled. If the display image 36 is larger than the first display part 17, the display image 36 is partly displayed on the first display part 17. An area to be extracted can be thus specified as the display image 36 displayed on the first display part 17 is scaled, so that scaling and extraction operations can be made simultaneously. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic apparatus capable of cutting and enlarging an image.
[0002]
[Prior art]
In recent years, electronic devices are becoming smaller and more functional. For example, in a mobile phone, the screen is enlarged and a large amount of character information and images can be displayed.
[0003]
In other words, the display screen becomes larger in electronic equipment, and a large amount of information can be displayed. As color display becomes sufficiently practical for displaying images, not only simple characters but also characters and images are displayed. It is requested.
[0004]
On the other hand, among recent mobile phones, there is a so-called camera-equipped mobile phone equipped with an imaging lens and a camera equipped with an image sensor that converts input light into an electrical signal. Display size, camera resolution and processing power are improved.
[0005]
In addition, a mobile phone that can display an enlarged image obtained through a camera or a network has also appeared (for example, see Patent Document 1).
[0006]
[Patent Document 1]
JP 2002-374450 A
[0007]
[Problems to be solved by the invention]
However, the mobile phone described above lacks the function of editing the obtained image, and the function of cropping the image and the function of enlarging the image are often individual functions. For this reason, when an image is partially enlarged and cut out, two editing operations, that is, an editing operation for enlarging and an editing operation for cutting out are required. Therefore, such a continuous editing operation is very complicated for the user.
[0008]
The present invention has been made in view of the above-described problems, and a main object of the present invention is to provide an electronic apparatus that can easily cut and enlarge an image.
[0009]
[Means for Solving the Problems]
The present invention relates to a storage unit that stores image data, a display unit that displays an image based on the image data and a cropping frame, and an image based on the image data displayed on the display unit. Size changing means for reducing, moving means for moving a relative positional relationship between the cut frame displayed on the display means, an image based on the image data, and image data corresponding to the image in the cut frame And extracting means for extracting. Therefore, it is possible to specify the location to be extracted while displaying the image to be cut out enlarged or reduced.
[0010]
Further, the present invention is characterized in that the moving means moves an image based on the image data in a state where the position of the clipping frame is fixed with respect to the display screen of the display means. Therefore, it is possible to extract an image at an arbitrary location.
[0011]
Further, the present invention has a designating unit for designating a cropped image size, and the display unit determines the size of the cropped frame based on the cropped surface image size designated by the designating unit. To do. Therefore, the size of the cut frame can be changed according to the size of the cut image size.
[0012]
Further, in the present invention, when the size changing means first displays an image based on the image data on the display means, the first image is enlarged or reduced to a vertical or horizontal size of the cropping frame. It is characterized by doing. Therefore, the user can accurately know the size of the image with respect to the cropping frame.
[0013]
Further, according to the present invention, the storage unit stores expansion data expanded and expanded by the size changing unit, and the display unit displays an image having a size smaller than the image size based on the expansion data. An image based on data obtained by thinning out the developed data is displayed. Accordingly, even if the size of the image displayed on the display means changes, it is possible to cope with the problem by thinning out the large developed data, thereby reducing the time required for enlarging and reducing the displayed image. Can do.
[0014]
Further, the present invention is characterized in that the display means simultaneously displays <image based on image data from the storage means and <image based on image data extracted by the extraction means. Therefore, the user can know exactly how much the image has changed by the extraction operation.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The present invention can be applied to any electronic device. Hereinafter, a foldable camera-equipped cellular phone 1 (hereinafter referred to as a cellular phone) will be described as a preferred embodiment. In the following, a foldable mobile phone is shown, but the present invention is not limited to this form. For example, a straight-type mobile phone may be used.
[0016]
First, FIG. 1A is a mobile phone according to an embodiment of the present invention. FIG. 1A is an outline view seen from the inside (key surface) in an open state, and FIG. 1B is a view seen from the outside (back) in a closed state. FIG. 2 is a schematic functional block diagram for explaining the electrical configuration of the mobile phone.
[0017]
As shown in FIGS. 1A and 1B, for example, the speaker 2 is arranged at the upper center inside the lid of the mobile phone 1, and the microphone 3 is arranged at the lower center inside the main body. The key operation unit 18 as input means includes, for example, a determination key 18A for determining and selecting various functions, a camera key 18B for starting a camera mode, a power key 18C for turning on the power, and selecting various functions and images. Are comprised of a cross key 18D that can be moved up and down and left and right, a mail key 18E that activates the mail mode, and a number / character key 18F that is mainly used for inputting numbers and characters.
[0018]
And the 1st display part 17 as a display means is arrange | positioned squarely inside the cover part in which the speaker 2 is arrange | positioned, and the 2nd display part 4 is square shape, and is arrange | positioned near the center of the cover part outer side. ing. Furthermore, the imaging unit 12 is disposed near the center near the hinge outside the lid, and can capture an image while checking the subject on the second display unit 4 even in the closed state. The back key 4 is arranged below the second display unit 4 and is used as a shutter key in a closed state, and is suitable for a user to take a picture of himself / herself. When shooting in an open state, shooting can be performed by pressing the shutter key of the key operation unit 18 while checking the subject on the first first display unit 17 or the second display unit 4.
[0019]
With reference to FIG. 2, the electrical configuration of a mobile phone which is an electronic apparatus of the present invention will be described. The cellular phone 1 according to the present embodiment mainly includes a control unit 11, an imaging unit 12, an image processing unit 13, a memory 14, a display driver unit 16, a first display unit 17, a backlight 20, a key operation unit 18, and an antenna. 22, a wireless unit 23, and a communication control unit 24.
[0020]
The control unit 11 controls the operation of each part constituting the mobile phone 1, and controls the image processing unit 13, the first display unit 17, the backlight 20, and the like, for example. In the present invention, the control unit 11 functions as an extraction unit, and has a function of cutting an image stored in the memory 14 into a desired size. Further, the control unit 11 functions as a size conversion unit and has a function of enlarging / reducing the size of an image displayed on the first display unit 17. Furthermore, the control unit 11 also has a function of a moving unit that moves the relative position between the frame indicating the area to be cut and the original image when the image is cut.
[0021]
The imaging unit 12 includes an imaging lens, an imaging element such as a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor, and RGB color filters. Further, the imaging unit 12 converts the light reflected by the subject and incident on the imaging lens into RGB three-color light through a color filter, and converts the RGB three-color light into an electrical signal by the imaging device.
[0022]
The image processing unit 13 includes an amplification unit, an A / D (analog / digital) conversion unit, and a signal processing unit. The amplifying unit amplifies the electrical signal corresponding to RGB sent from the imaging unit 12 and sends the amplified electrical signal to the A / D conversion unit. The A / D conversion unit converts the electrical signal (analog) corresponding to RGB amplified by the amplification unit into a digital signal, outputs image data, and sends the image data to the signal processing unit. The signal processing unit performs signal processing such as pixel interpolation processing on the image data sent from the A / D conversion unit. Further, the signal processing unit sends the image data to the image data memory 14 subjected to signal processing based on the control signal sent from the control unit 11.
[0023]
The memory 14 stores image data sent from the image processing unit 13. Information other than the image data is also stored in the memory unit 14. The memory 14 may be configured by a first memory for storing information and a second memory in which the memory is temporarily stored. For example, in the second memory, the image data is temporarily stored by erasing the old image data in time or overwriting the newest image data.
[0024]
The control unit 11 transmits a control signal to the display driver unit 16 and sends the image data stored in the memory 14 to the display driver unit 16. The display driver unit 16 applies a driving voltage to each pixel electrode of the first display unit 17 in accordance with image data to be displayed on the first display unit 17. The first display unit 17 is realized by a liquid crystal display, an EL (Electro Luminescence) display, or the like, and displays an image based on image data sent via the display driver unit 16.
[0025]
The backlight 20 includes a light emitting diode that is a light emitting element, and illuminates the first display unit 17 from the back. Control of turning on / off the backlight 20 and adjusting brightness are performed by the control unit 11. The backlight 20 may be turned on until a predetermined operation for turning off the light is performed by the user, or may be turned off when a predetermined time elapses after the light is turned on.
[0026]
The key operation unit 18 includes number / character keys 18F for inputting numbers and characters. The numeric / character keys 18F are arranged in a 3 × 4 manner and arranged in a matrix at equal intervals so that the user can easily input.
[0027]
The cross key 18D functions as a pointing device that is a moving means, and has a function corresponding to a mouse or a pad of a personal computer. Accordingly, by using the cross key 18D, it is possible to intuitively select a function or an image. Further, as an alternative to the cross key 18D, a mobile phone provided with a protruding or dial-type key as a pointing device is also within the scope of the present invention.
[0028]
The antenna 22 transmits and receives voice data, character data, image data, and the like when performing wireless communication with the base station via wireless radio waves. The radio unit 23 demodulates data received from the base station via the antenna 22 at the time of reception, and modulates and amplifies character data and image data sent from the communication control unit 24 at the time of transmission, Transmit to the base station via the antenna 22. The communication control unit 24 sends received data such as character data and image data demodulated by the wireless unit 23 to the control unit 11 based on a predetermined communication protocol. Received data from the other party received via the wireless unit 23 and the communication control unit 24 is stored in the memory 14.
[0029]
Next, the operation of the mobile phone described above will be described with reference to FIG. With reference to the flowchart illustrating the image editing sequence in FIG. 3, the electronic device of the present invention performs image editing in the following operation. That is, step S1 for displaying a thumbnail image, step SP2 for selecting an image to be edited, step S3 for designating the size of the image to be extracted, step S4 for extracting the image, and determination of cancellation of extraction. The image editing sequence is composed of step S5 to be performed and step S6 to store the image. Details of these steps will be described below.
[0030]
Referring to FIG. 4, in step S <b> 1, a plurality of thumbnail images 30 are displayed on first display unit 17. Here, the thumbnail image is a small heading image used for quickly accessing a target original image from a list of image files. Moreover, as an original image, the image image | photographed by the imaging part 12, the image acquired via the antenna 22, the image originally preserve | saved at the mobile telephone 1 etc. can be considered.
[0031]
Referring to the figure, the arrangement of thumbnail images 30 corresponds to the arrangement of numeric / character keys 18F. Specifically, the arrangement of the number / character keys 18F from 1 to 9 is a 3 × 3 matrix, and the arrangement of the thumbnail images 30 displayed on the first display unit 17 is also 3 × 3. Yes.
[0032]
In step S2, the thumbnail image 30 can be selected by pressing the number / character key 18F, so that the image can be easily selected. The thumbnail image 30 can also be selected using the cross key 18D. The original image of the thumbnail image 30 selected in this way is displayed on the first display unit 17, for example, as shown in FIG.
[0033]
In step S3, the size of the image to be extracted is designated, and what size image is extracted from the image selected above is determined. In this step, the user can specify a desired size from a plurality of standardized image sizes. Here, the standardized image size is, for example, a standardized size for sending via the Internet or the like, and is suitable for display as a standby screen on the first display unit 17 or the second display unit 4. Size and the like.
[0034]
In step S4, the image specified in step S3 is extracted from the image selected in step S2. This extraction operation is generally called trimming. Details of this step will be described with reference to FIGS. Here, the details when a square image (100 × 100) is extracted from a vertically long image (horizontal × vertical = 200 × 300) will be described.
[0035]
First, with reference to FIGS. 6 and 7, a description will be given of a display image 36 displayed on the first display unit and a display method of a cut frame 37 indicating an extraction region when performing extraction.
[0036]
With reference to FIG. 6, the case where the display image 36 is displayed in the cut frame 37 at the same magnification will be described. Referring to FIG. 6A, the compressed image 35 is stored in the memory 14 in a compression format such as JPG (Joint Photographic Experts Group). A decompressed image 40 is generated by decompressing the compressed image 35. The size of the developed image 40 is governed by the display image 36 initially displayed on the first display unit 17. Here, the size of the display image 36 initially displayed on the first display unit 17 is horizontal × vertical = 100 × 150. In the present invention, the display image 36 can be magnified up to 5 times and displayed on the first display unit 17. From this, the size of the developed image 40 is five times the size of the display image 36 initially displayed on the first display unit 17, and the horizontal × vertical = 500 × 750.
[0037]
When the display image 36 is smaller than the developed image 40, the display image 36 is generated by thinning out the developed image 40. When the size of the display image 36 displayed on the first display unit 17 changes, the display image 36 is regenerated by thinning out the developed image 40 again. As a result, it is possible to generate a display image 36 having a new size by thinning out the developed image 40 in accordance with a change in the size of the display image 36, thereby reducing the time required for displaying the display image 36. can do.
[0038]
The relationship between the developed image 40 and the display image 36 will be described with reference to FIG. Here, a case where the display image 17 having the same width as the cut frame 37 is displayed on the first display unit 17 will be described. The first display unit 17 has, for example, horizontal × vertical = 240 × 250, and the display image 36 is displayed in the central portion with horizontal × vertical = 100 × 150. Then, a cut frame 37 is displayed in a horizontal × vertical = 100 × 100 manner superimposed on the display image 36. For the cut frame 37, a visually distinctive color such as a red line is employed.
[0039]
The display image 36 is displayed at the center of the first display unit 17. Since the display image 36 is a vertically long image here, the length in the vertical direction is longer than the cut frame 37 when the horizontal width of the cut frame 37 is the same. Accordingly, the center of the display image 36 and the center of the cut frame 37 are displayed together, and the upper end and the lower end of the display image 36 are displayed outside the cut frame 37. When the display image 36 is an image that is long in the horizontal direction, the vertical length of the display image 36 is shorter than the cut frame 37 according to the above method. 36 is displayed. Further, the vertical direction of the cut frame 37 and the display image 36 may be aligned.
[0040]
Here, the cut frame 37 is horizontal × vertical = 100 × 100, which is smaller than the first display unit 17. Therefore, it is displayed in the center of the first display unit 17 in the same size. When the size of the cropping frame 37 (the size of the image selected in step S3) is larger than that of the first display unit 17, the size that can be displayed on the first display unit 17 while maintaining the aspect ratio of the cropping frame 37. And the cut frame 37 is displayed.
[0041]
The size of the cut frame 37 displayed on the first display unit 17 is horizontal × vertical = 100 × 100, which corresponds to the horizontal × vertical = 500 × 500 of the developed image 40 stored in the memory 14. Yes. Therefore, when cutting is performed in this state, a new image of horizontal × vertical = 100 × 100 is generated from horizontal × vertical = 500 × 500 of the developed image 40, and thus a good image can be obtained.
[0042]
With reference to FIG. 7, the case where the display image 36 is displayed 4 times is demonstrated. With reference to FIG. 7A, a developed image of horizontal × vertical = 500 × 750 is generated by enlarging and developing an image of horizontal × vertical = 200 × 300 five times. Then, by thinning out the developed image 40, a display image (horizontal × vertical = 400 × 600) that is four times larger than the state displayed first is generated.
[0043]
With reference to FIG. 7B, a state in which the display image 36 magnified four times is displayed on the first display unit 17 will be described. By enlarging, the display image 36 is horizontal × vertical = 400 × 600, which is larger than the first display unit 17. Accordingly, in this case, the maximum display image 36 is displayed on the first display unit 17 and the display image 36 is partially displayed. Even in such a case, the size of the cut frame 37 does not change. Here, the display image 36 enlarged four times is partially displayed as horizontal × vertical = 240 × 250. The cut frame 37 is displayed as 100 × 100.
[0044]
When the cutout frame 37 displayed on the display unit 17 is compared with the developed image 40, the area of the cutout frame 37 displayed as horizontal × vertical = 100 × 100 is an area of horizontal × vertical = 125 × 125 of the developed image 40. Corresponding to A region of the display image 36 displayed on the display unit 17 corresponds to horizontal × vertical = 300 × 312 of the developed image 40. If extraction is performed in this state, a new image of horizontal × vertical = 100 × 100 is generated from the horizontal × vertical = 125 × 125 region of the developed image 40.
[0045]
That is, when the magnification of the display image 36 displayed on the display unit 17 is increased, the area of the developed image 40 displayed is reduced. Further, since the size of the cut frame 37 does not change regardless of the magnification of the display image 36, if the magnification of the display image 36 is increased, a smaller region of the developed image 40 is extracted.
[0046]
With reference to FIG. 8, a display method of the display unit 17 and the cutting frame 37 when performing extraction will be described. With reference to FIG. 8A, a display image 36 having a size matched to the horizontal width of the cut frame 37 is first displayed on the first display unit 17. An icon 38 linked to a function for enlarging is displayed at the lower part of the display unit 17, and the display image 36 can be enlarged by selecting this icon.
[0047]
With reference to FIG. 8B, the display image 36 is enlarged larger than the display unit 17, and the display image 36 is partially displayed on the display unit 17. In this case, since the display image 36 can be enlarged and reduced, an icon 38 indicating reduction is displayed in addition to the icon 38 indicating enlargement. In this state, by operating a pointing device such as the cross key 18D, the relative position of the cut frame 37 with respect to the display image 36 can be moved.
[0048]
By specifying the right direction from the state of FIG. 8B, the display image 36 moves to the left, and the cut frame 37 does not move, and the state shown in FIG. 8C is obtained. Therefore, the cut frame 37 has moved to the right with respect to the display image 36. In addition, by designating the downward direction from the state of FIG. 8B, the display image 36 moves upward, and the cropping frame 37 does not move to the state shown in FIG. 8D. Therefore, the cut frame 37 has moved downward with respect to the display image 36. Further, by specifying the downward direction in the state of FIG. 8C or specifying the right direction in the state of FIG. 8D, the state shown in FIG. 8E is obtained. Further, the display image 36 can be enlarged and reduced in any of the states shown in FIGS. 8B to 8E. Then, when the user selects the icon 38 linked to the determination function, the image of the area surrounded by the cut frame 37 is extracted.
[0049]
Referring to FIG. 9, in step S5, the extracted image is confirmed and it is determined whether or not to cancel the editing. The extracted image 39, which is an image generated by extracting the image in step S4, is displayed on the first display unit 17. Here, since the extracted image 39 is smaller than the first display unit 17, the extracted image 39 is displayed on the first display unit 17 in the same size. When the size of the extracted image 39 is larger than that of the first display unit 17, the extracted image 39 reduced without changing the aspect ratio is displayed on the first display unit 17. When the user accepts the extracted image 39, the icon 38 linked to the confirmation function is selected and the process proceeds to the next step. If the user does not accept the extracted image 39, the process proceeds to step S4 by pressing the clear key or the like, and the image is extracted again.
[0050]
Next, referring to FIG. 10, an original image 31 before extraction and an extracted image 39 that is an extracted image are simultaneously displayed on the first display unit 17. An original image 31 and an extracted image 39 are displayed in the horizontal direction in the upper part of the first display unit 17. In the lower part of the first display unit 17, icons 33 linked to various functions for editing images are displayed in a matrix. Here, various functions for editing an image include, for example, an image rotation function, a stamp function, a panorama synthesis function, a vertical flip function, a horizontal flip function, a trimming function, and a size change function. In addition, at the bottom of the first display unit 17, the standard size of the extracted image 39 is indicated by characters. For example, when the extracted image 39 is the size for the standby screen, “standby screen” may be displayed at the bottom of the first display unit 17.
[0051]
By displaying the original image 31 and the extracted image 39 simultaneously, the degree of change of the extracted image 39 with respect to the original image 31 can be confirmed more accurately. Then, by selecting the icon 33 linked to the storage function, the process proceeds to step S6.
[0052]
In step S6, the extracted image 39 is stored in the memory 14. Also, the registered title name when saving is different from the original image 31.
[0053]
The above-described embodiment can be variously modified without departing from the gist of the present invention. For example, the following changes can be made.
[0054]
In step S2, the size desired by the user is selected from the predetermined sizes of the extracted image 39. However, the size of the extracted image 39 can be set with an arbitrary number.
[0055]
【The invention's effect】
In the present invention, the following effects can be achieved.
[0056]
First, the range of extraction can be specified while enlarging / reducing the display image 36 displayed on the first display unit 17, so that the operations of enlargement / reduction and extraction can be performed simultaneously.
[0057]
Secondly, a developed image 40 having a size corresponding to the maximum display image 36 displayed on the first display unit 17 is prepared. When the display image 36 is smaller than the developed image 40, the display image 36 is thinned out. Thus, the display image 36 is generated. Accordingly, it is possible to save time and effort to expand the display image 36 according to the enlargement and reduction of the display image 36, and thus it is possible to reduce the time required for image display.
[Brief description of the drawings]
1A is a schematic view of a mobile phone according to an embodiment of the present invention as viewed from the inside (key surface) in an open state, and FIG. 1B is a view from the outside (back) in a closed state. FIG.
FIG. 2 is a schematic functional block diagram illustrating an electrical configuration of the mobile phone.
FIG. 3 is a flowchart illustrating a sequence of the mobile phone.
FIG. 4 is a diagram illustrating a method for displaying thumbnail images.
FIG. 5 is a diagram illustrating a state in which an original image is displayed on a display unit.
FIG. 6A is a diagram illustrating the relationship between the sizes of a compressed image, a developed image, and a display image, and FIG. 6B is a diagram illustrating a state in which a display image and a cutting frame are displayed.
FIG. 7A is a diagram illustrating the relationship between the sizes of a compressed image, a developed image, and a display image, and FIG. 7B is a diagram illustrating a state in which a display image and a cutting frame are displayed.
FIG. 8 is a diagram (A)-(E) showing a state in which a display image and a cropping frame are displayed.
FIG. 9 is a diagram illustrating a state in which an extracted image is displayed.
FIG. 10 is a diagram illustrating a state in which an extracted image and an original image are displayed.
[Explanation of symbols]
1 Mobile phone with camera
2 Speaker
3 Microphone
4 Back key
11 Control unit
12 Imaging unit
13 Image processing unit
14 memory
16 Display driver section
17 Display
20 Backlight
18 Key operation unit
24 Antenna
25 Radio section
26 Communication control unit
30 thumbnail images
31 First image
32 Second image
33 icon
35 Compressed image
36 display images
37 Cut frame
39 Extracted images
40 Development image

Claims (6)

Storage means for storing image data;
Display means for displaying an image based on the image data and a cutting frame in an overlapping manner;
The size changing means for enlarging or reducing the image based on the image data displayed on the display means, the cutting frame displayed on the display means, and the relative positional relationship between the image based on the image data are moved. Transportation means;
An electronic apparatus comprising: extraction means for extracting image data corresponding to an image in the cut frame. The electronic device according to claim 1, wherein the moving unit moves an image based on the image data in a state where the position of the cutting frame is fixed with respect to the display screen of the display unit. Having a specifying means for specifying the cropped image size;
2. The electronic apparatus according to claim 1, wherein the display unit determines the size of the cut frame based on a cut surface image size designated by the designation unit. The size changing unit is characterized in that, when an image based on the image data is first displayed on the display unit, the first image is enlarged or reduced to a vertical or horizontal size of the cut frame. The electronic device according to claim 1. The storage means stores expanded data expanded and expanded by the size changing means, and the display means displays the expanded data when displaying an image having a size smaller than the image size based on the expanded data. 2. The electronic apparatus according to claim 1, wherein an image based on the thinned data is displayed. 2. The electronic apparatus according to claim 1, wherein the display unit simultaneously displays <image based on image data from the storage unit and <image based on image data extracted by the extraction unit. .

Images