WO2006046460A1 - デジタルカメラおよび画像合成装置 - Google Patents
デジタルカメラおよび画像合成装置 Download PDFInfo
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- WO2006046460A1 WO2006046460A1 PCT/JP2005/019284 JP2005019284W WO2006046460A1 WO 2006046460 A1 WO2006046460 A1 WO 2006046460A1 JP 2005019284 W JP2005019284 W JP 2005019284W WO 2006046460 A1 WO2006046460 A1 WO 2006046460A1
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- gain
- images
- exposure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
- H04N5/772—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera the recording apparatus and the television camera being placed in the same enclosure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/741—Circuitry for compensating brightness variation in the scene by increasing the dynamic range of the image compared to the dynamic range of the electronic image sensors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/50—Control of the SSIS exposure
- H04N25/57—Control of the dynamic range
- H04N25/58—Control of the dynamic range involving two or more exposures
- H04N25/587—Control of the dynamic range involving two or more exposures acquired sequentially, e.g. using the combination of odd and even image fields
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/907—Television signal recording using static stores, e.g. storage tubes or semiconductor memories
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
- H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
- H04N9/8047—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction using transform coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
- H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
- H04N9/8227—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal the additional signal being at least another television signal
Definitions
- the present invention relates to a digital camera that synthesizes images shot by multiple exposure and an image synthesizer that synthesizes a plurality of shot images.
- Patent Document 1 When multiple images taken by multiple exposure are combined into a single image, the image data of each frame is calculated and then divided by the number of frames to perform the averaging process.
- Patent Document 1 generates a multiple-exposure photographed image by superimposing a plurality of images, saves the multiple-exposure photographed image, and deletes an unnecessary original image.
- Patent Document 2 discloses a technique for obtaining a multiple captured image by superimposing a plurality of captured images.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-69888
- Patent Document 2 Japanese Patent Laid-Open No. 2003-298925
- Patent Document 2 discloses that when a multiple photographed image is obtained, the background portion of the photographed image is replaced with a through image and displayed on a monitor. Replace the image background From the displayed image, the entire image is displayed! Therefore, it is impossible to confirm the superposition effect.
- the digital camera includes a storage unit that stores a plurality of images captured by the imaging device when the multiple exposure shooting mode is set, and a sum based on the number of multiple exposure shootings.
- a gain applying unit that applies a gain determined to be 1 to a plurality of captured images, and after the gain is applied by the gain applying unit, the plurality of images are combined to form a multiple-exposure photographed image.
- a synthesis unit to be generated.
- the synthesized image when the synthesized image is stored in the storage unit after the gained image has been gained, a plurality of images are stored from the storage unit.
- a plurality of images are stored from the storage unit.
- the digital camera according to the first or second aspect may further include an interruption instructing unit that interrupts the imaging before the imaging of the multiple exposure number of images is completed.
- the gain adding unit becomes 1 based on the number of images captured before the interruption. It is preferable that the gain determined as described above is applied to a plurality of captured images, and the combining unit combines the plurality of captured images before interruption to generate a multiple-exposure photographed image.
- the digital camera is set to the multiple exposure shooting mode.
- a storage unit that stores a plurality of images captured by the imaging device when speaking, a combining unit that combines the plurality of images stored in the storage unit to generate a multiple exposure photographed image,
- the recording control unit records the original image stored in the storage unit together with the multiple-exposure photographed image on the recording medium.
- the digital camera of the sixth aspect further includes a first recording mode for recording only the multiple-exposure photographed image when performing the process of recording the multiple-exposure photographed image on the recording medium, It may be equipped with a record selection section that selects the multiple exposure shot image and the second recording mode for recording the original image.
- the digital camera of the seventh aspect further provides a gain that gives a gain determined so that the sum is 1 based on the number of multiple exposure shots to a plurality of captured images. You may provide a provision part.
- the synthesizing unit generates a multiple-exposure photographed image by synthesizing a plurality of images after applying the gain by the gain applying unit.
- the digital camera when the image is combined by the combining unit, a gain is added by the gain applying unit, and then a plurality of images are combined to form a multiple exposure photographed image.
- a synthesis selection unit that selects a first synthesis mode to be generated and a second synthesis mode in which multiple gain images are generated by synthesizing a plurality of images without adding gain by the gain applying unit. ⁇ ⁇ .
- the synthesis unit selects the second synthesis mode by the synthesis selection unit.
- the recording control unit performs multiple exposure shooting of the original image to which no gain is applied. It is preferable to record on a recording medium together with an image.
- the image composition device includes an image composition unit that obtains an image obtained by superimposing the first image and the second image, and the image composition unit before the image composition unit starts superimposing the images.
- the first sub-image with a smaller number of data than the first image generated based on the data of the first image and the second sub-image generated based on the data of the second image
- a sub-image composition unit that superimposes the two sub-images and obtains a sub-image corresponding to the image after superimposition that would be obtained by the image composition unit
- a display unit for displaying the sub-image superimposed by the sub-image synthesis unit.
- the display unit displays the first sub-image, the second sub-image, and the superimposed sub-image on the same screen. Is preferred.
- the first sub-image is a thumbnail image included in the data file in which the first image is recorded.
- the second sub-image is a thumbnail image included in the data file in which the second image is recorded! /.
- the image composition is performed according to the start instruction after the sub-image composition unit obtains the superimposed sub-image. It is preferable that the part starts to superimpose the image.
- an image composition device in the image composition device according to the seventeenth aspect, an image composition It is preferable that the recording of the superimposed image is started in response to a start instruction after the unit obtains the superimposed image.
- the recording format of the image after superimposition is the recording format of the image set in the digital camera.
- the image superimposed by the image composition unit is preferably recorded as RAW data.
- a digital camera includes the image composition device according to any one of the thirteenth to twentieth aspects.
- the storage unit may be replaced with storage means.
- the gain applying unit may be replaced with a gain applying unit.
- the synthesis unit may be replaced with synthesis means.
- the interruption instruction unit may be replaced with interruption instruction means.
- the switching unit may be replaced with switching means.
- the image processing unit may be replaced with image processing means.
- the recording control unit may be replaced with recording control means.
- the record selection unit may be replaced with a record selection unit.
- composition selection unit may be replaced with composition selection means.
- the image composition unit may be replaced with image composition means.
- the sub-image composition unit may be replaced with sub-image composition means.
- the display unit may be replaced with display means.
- the superimposition ratio setting unit may be replaced with superimposition ratio setting means.
- a gain determined so that the sum is 1 based on the number of multiple exposure shots is given to a plurality of captured images, and then the plurality of images are combined. Multiple exposure shot images were generated. As a result, it is possible to avoid data overflow during synthesis. In addition, it is possible to prevent overexposure at the time of composition, and it is possible to obtain a multiple-exposure photographed image with appropriate exposure. According to another invention, since the original image is stored together with the multiple exposure photographed image, the original image can be referred to as necessary.
- the image synthesizing unit starts superimposing the first image and the second image
- the number of data is small
- the first sub-image and the number of data are small
- FIG. 4 is a flowchart showing a process flow in the digital camera.
- FIG. 6 is a diagram showing a specific example of RAW data stored in an image memory in the second embodiment.
- FIG. 8 is a diagram illustrating an initial screen displayed in the image composition mode.
- FIG. 9 is a diagram illustrating an image selection screen.
- FIG. 11 is a diagram illustrating an image composition screen.
- FIG. 12 is a diagram illustrating an image composition screen when the gain is changed.
- FIG. 13 is a diagram exemplifying an image composition screen when the gain is changed.
- FIG. 1 is a block diagram showing a configuration of an embodiment of a digital camera according to the first embodiment of the present invention.
- the digital camera 100 is an AZD converter that converts a photographing lens 1, an image sensor 2 such as a CCD, and an analog signal output from the image sensor 2 into a digital signal.
- a conversion circuit 3 a timing generator (TG) 4 that gives a timing signal to the image sensor 2, an image memory (semiconductor memory) 5 that temporarily stores a plurality of captured images, and various image processing described later.
- the display device 9 displays a menu for changing various setting values of the digital camera 100, and the user operates the input device 13 according to the displayed menu.
- the settings of the digital camera 100 can be changed.
- the image memory 5 is a buffer memory and can store a plurality of RAW data.
- the image processing circuit 6 reads RAW data stored in the image memory 5 and performs known image processing such as interpolation, color temperature correction, and gradation correction, automatic gain correction described later, and image synthesis. Do. Thereafter, the compression circuit 7 compresses and converts the image data into a predetermined compression format, for example, the JPEG format, and stores it in the memory 10. The image data stored in the memory 10 is copied and stored in the recording medium 11 automatically or by an instruction from the user. Further, the image data processed by the image processing circuit 6 is subjected to display processing by the display circuit 8 and displayed on the display device 9.
- known image processing such as interpolation, color temperature correction, and gradation correction, automatic gain correction described later, and image synthesis. Do.
- the compression circuit 7 compresses and converts the image data into a predetermined compression format, for example, the JPEG format, and stores it in the memory 10.
- the image data stored in the memory 10 is copied and stored in the recording medium 11 automatically or by an instruction from the user. Further, the image data
- the digital camera 100 in the first embodiment is capable of imaging by multiple exposure, and is set in advance by the user when the multiple exposure shooting mode is set. Takes the number of frames (number of images) in multiple exposure shooting mode.
- the multiple exposure setting screen shown in FIG. On this multiple exposure setting screen, first, the number of frames to be captured by multiple exposure is entered and set in the comma number input field 2a.
- the number of frames can be arbitrarily set within a predetermined range, for example, 2 frames to 10 frames.
- the user also sets whether or not to perform automatic gain correction, which will be described later.
- Whether or not to perform automatic gain correction is set by selecting either “OFF” (invalid) or “ON” (enabled) for automatic gain correction in the automatic gain correction setting field 2b. Note that when the number of frames is not set in the frame number input field 2a, imaging by multiple exposure is not performed.
- the exposure value that is set each time the release switch is pressed until shooting for the set number of frames is performed. Images of each frame are taken.
- the image data of each frame that is, RAW data is stored in the image memory 5. For example, when the number of frames is set to 5, RAW data of 5 frames of image 1 to image 5 is stored in the image memory 5 as shown in FIG.
- the image processing circuit 6 adds all the RAW data stored in the image memory 5 and combines them. At this time, if the automatic gain correction is set to “OFF” on the multiple exposure setting screen shown in FIG. 2, all RAW data stored in the image memory 5 are added in order and combined.
- each RAW data stored in the image memory 5 is digital data obtained by digitally adding the charges output from each pixel of the image sensor 2, so that it is synthesized by adding pixel data at the same position on the image. Is possible. Therefore, for example, after adding image 2 to image 1 (image 1 + image 2), and adding image 3 to the addition result, the images can be combined in order.
- the exposure should be set to a level under 2.3 and the force should be imaged.
- each RAW data stored in the image memory 5 is set.
- the power is synthesized by adding the pixel data at the same position on the image. For example, when multiple exposures of 5 frames are performed, the five RAW data stored in the image memory 5 are summed up according to the following equation (2) and added after the gain is reduced, that is, the gain is reduced.
- each RAW data picked up by multiple exposure is multiplied by a gain whose sum is 1, gain-down, and then added and combined, so that the exposure overshoot is combined. Therefore, it is possible to obtain a multiple-exposure photographed image with appropriate exposure.
- the R AW data is added. Force that may overflow data on the way According to the present invention, it is possible to avoid this because the gain is reduced and the force is added.
- the following processing is performed so that a multiple-exposure photographed image can be obtained.
- the case where multiple exposure is interrupted is, for example, (A) when interruption of multiple exposure is instructed by the operation of the input device 13 by the user, and (B) digital time is set for a predetermined time. (C) When the camera 100 has a function to automatically turn off the power when it is not operated, and the power is turned off automatically without being operated for the predetermined time.
- the input device 13 is operated and the digital camera 100 is turned off, one of the following may be considered, and these are controlled by the CPU 12.
- the image processing circuit 6 is based on the RAW data of the number of frames imaged at the time of the interruption. Then, synthesis is performed according to equation (2). For example, if the number of frames to be captured by multiple exposure is set to 8, if there is no interruption, the digital gain is set so that the sum of K1 to K8 is 1 for the 8 frames of captured RAW data. Based on (2), composition is performed with automatic gain setting, but if multiple exposure is interrupted at the time of five-frame shooting, the total of K1 to K5 for the five frames of RAW data captured Set the digital gain so that becomes 1, and set the automatic gain based on Equation (2) and synthesize. As a result, even when multiple exposure is interrupted, a multiple-exposure photographed image with appropriate exposure can be obtained.
- FIG. 4 is a flowchart showing the flow of processing in the digital camera 100 of the first embodiment.
- the processing shown in FIG. 4 is executed by the CPU 12 as a program that starts when the power of the digital camera is turned on.
- step S10 it is determined whether or not the user has pressed the release button. If it is determined by the user that the release button has been pressed, the process proceeds to step S20.
- step S20 the subject is imaged by the imaging element 2 via the imaging lens 1. At this time, if the exposure condition is the automatic exposure shooting mode, an appropriate exposure value is set according to the brightness of the subject. Then go to step S30.
- step S30 RAW data obtained by converting the electric charge accumulated in the image sensor 2 into a digital signal by the AZD conversion circuit 3 is stored in the image memory 5.
- step S40 it is determined whether or not the user is instructed to set the multiple exposure shooting mode on the multiple exposure setting screen shown in Fig. 2, that is, whether the number of frames to be captured by multiple exposure is set. to decide. If you are instructed to take multiple exposure images, Then, the process proceeds to step S100 described later. On the other hand, if the multiple exposure shooting mode is instructed, the process proceeds to step S50. In step S50, it is determined whether or not the imaging of the number of frames to be imaged by the multiple exposure preset by the user is completed. If it is determined that the imaging of the number of frames to be captured by the multiple exposure is completed, the process proceeds to step S70.
- step S60 it is determined whether or not the multiple exposure is interrupted in the middle for any of the reasons (A) to (C) described above. If it is determined that multiple exposure has not been interrupted, the process returns to step S10 and waits for the release switch to be pressed. When the release switch is pressed, the above processing is performed. On the other hand, if it is determined that multiple exposure has been interrupted, the process proceeds to step S70.
- step S120 it is determined whether or not the digital camera 100 is turned off. If it is determined that the power is not turned off, the process returns to step S10 and the process is repeated. On the other hand, if it is determined that the power is turned off, the process is terminated.
- the automatic gain correction is set to “Yes” by the user!
- each RAW data stored in the image memory 5 is summed up digitally to reduce the gain and add the pixel data at the same position on the image for synthesis.
- it is possible to prevent overexposure at the time of composition and it is possible to obtain a multi-exposure photographed image with appropriate exposure.
- each RAW data imaged by multiple exposure is multiplied by a digital gain whose sum is 1, and the gain is reduced.
- the sum 1 can be gain-decreased by the digital gain calculated by dividing the number of frames to be imaged by multiple exposure. If each frame is imaged at an appropriate exposure value, A multiple-exposure photographed image can be obtained with an appropriate exposure according to the number of frames to be imaged by exposure.
- the number of frames to be captured by multiple exposure is input and set in the frame number input field 2a.
- the number of frames can be set arbitrarily within a predetermined range, for example, between 2 and 10 frames.
- each RAW data stored in the image memory 5 and these are all digitally combined. Record both synthesized image data stored in the image memory 5 after gain reduction and synthesis. It was recorded on the medium. Thereby, the original image can be referred to.
- FIG. 7 is a diagram showing a configuration of an electronic camera according to the third embodiment of the present invention.
- a subject image is formed on the imaging surface of the image sensor 2 by the photographing lens 1.
- the image sensor 2 captures a subject image and outputs an image signal to the AZD conversion circuit 3.
- the AZD conversion circuit 3 converts the analog image signal input from the image sensor 2 into a digital image signal, and outputs the converted digital data to the image memory 5.
- a timing generator (TG) 4 supplies a timing signal to the image sensor 2.
- the adder circuit 8A performs frame addition (addition of corresponding pixels) on a plurality of frames of image data multiplied by the gain circuit 7A, and outputs the added image data to the image memory 5.
- the compression circuit 11A is image data that has been subjected to image processing by the image processing circuit 6A. Is compressed using a method such as JPEG.
- the display circuit 10A generates a display signal necessary for reproducing and displaying the photographed image on the display device 13A.
- Display device 13A is constituted by, for example, a TFT liquid crystal panel, and reproduces and displays an image based on a display signal generated by display circuit 10A.
- the display device 13A is configured to display an operation menu in addition to the image.
- the operation menu is used to make various settings for the electronic camera.
- the display circuit 10A also generates display signals necessary for displaying the operation menu.
- the memory 14 is a memory that temporarily stores the image data compressed by the compression circuit 11A.
- the recording medium 15 is configured by a memory card that is detachable from the electronic camera.
- the electronic camera can store the image data stored in the memory 14 in the recording mode 15 in the recording medium 15 and read out the image data stored in the recording medium 15 in the playback mode and the image composition mode into the memory 14. Configured.
- the electronic camera has a shooting mode for shooting a subject, a playback mode for displaying a shot image on the display device 13A, and an image composition mode for combining the shot images.
- the CPU 12A controls each block constituting the electronic camera described above.
- the gain circuit 7A, the gain setting circuit 9A, the adding circuit 8A, the image processing circuit 6A, the compression circuit 11A, and the display circuit 10A are particularly called image processing blocks.
- the operation member 16 includes a mode switching switch, which will be described later, and pointing devices such as an enter key and a cross key, and generates operation signals corresponding to various operations and sends them to the CPU 12A.
- the mode switching switch is a switch for switching between a shooting mode, a playback mode, an image composition mode, and the like.
- the release button (not shown) When the release button (not shown) is pressed down on an electronic camera that has been switched to the shooting mode by the mode switch, the aperture (not shown) of the taking lens 1 is driven to the predetermined aperture and the shutter (not shown) is moved. Drive open. As a result, a subject image is formed on the imaging surface of the image sensor 2.
- the electronic camera completes the exposure by closing the shutter (not shown) so that an exposure time according to the exposure condition can be obtained.
- the charge accumulated in the image sensor 2 during exposure is sequentially read out from the image sensor 2.
- the image data is stored in the image memory 5 after AZD conversion.
- the image data at this point is called RAW data, which is data before image processing.
- the RAW data is subjected to predetermined image processing and compression processing, and is recorded on the recording medium 15 via the photographed image data memory 14 after the compression processing.
- the captured image is reproduced and displayed on the display device 13A by a display signal generated using the image data after the image processing. It is also possible to record captured image data as RAW data.
- the above (1) side has high image quality and the above (4) side has low image quality.
- the compression processing in (3) and (4) above is performed in PEG format.
- the predetermined image processing is color temperature adjustment processing or the like.
- (1) is selected as the recording format of the main image data.
- FIG. 8 is a diagram illustrating an initial screen displayed on the display device 13A in the image composition mode.
- the CPU 12A receives an operation signal for selecting “Imag e 1” corresponding to the first image from the cross key constituting the operation member 16. Further, when an operation signal indicating selection is input from the enter key, the image selection screen shown in FIG. 9 is displayed on the display device 13A instead of the initial screen being displayed. In FIG. 9, the six image data file strengths recorded on the recording medium 15 are also read out, and the six thumbnail image strengths are displayed in the upper and lower two rows, three images each. When an operation signal for selecting the upper center image (building night view) is input from the cross key and an operation signal indicating selection is input from the enter key, the CPU 12A sets the image as the first image.
- Image 1 is a thumbnail image corresponding to the first image
- Image 2 is a thumbnail image corresponding to the second image
- Preview is the first image and the second image.
- a thumbnail image that combines two thumbnail images corresponding to the image of is displayed.
- the gain setting value is changed from the initial value “1.0” to a value corresponding to the operation signal, and data indicating the changed gain value is sent to the gain setting circuit 9A.
- the gain setting circuit 9A sets the changed gain setting value in the gain circuit 7A, the thumbnail image corresponding to the first image to which the changed gain is applied is reproduced and displayed on the display device 13A.
- FIG. 13 illustrates an image composition screen when the gain setting value for the first image remains “1.0” and the gain setting value for the second image is changed to “0.3”.
- FIG. 13 the exposure is corrected to the underside by changing the gain of the second image (month) to less than 1.
- the CPU 12A receives an operation signal for selecting “composite” from the cross key constituting the operation member 16 in a state where the image composition screen as shown in FIG. 11 to FIG. 13 is displayed on the display device 13A, and further presses the enter key.
- an operation signal indicating selection decision is input from, synthesis of the main image corresponding to the first image and the main image corresponding to the second image is started.
- the CPU 12A reads two main image data from the recording medium 15, and stores the read main image data in the image memory 5, respectively.
- the gain circuit 7A displays the gain (set in the image composition screen shown in FIGS. 11 to 13) set for each of the main image corresponding to the first image and the main image corresponding to the second image. The value that is uttered).
- the adding circuit 8A adds the corresponding pixels of the main image corresponding to the first image to which the gain has been applied and the main image corresponding to the second image to which the gain has been applied.
- the data of the main image after addition (after synthesis) is stored in the image memory 5 as synthesized image data.
- the CPU 12A is an operation signal for selecting “save” from the cross key constituting the operation member 16 after the composition processing in the above 3 while the image composition screen as shown in FIGS. 11 to 13 is displayed on the display device 13A.
- the composite image data according to 3 above is recorded on the recording medium 15 from the image memory 5 via the memory 14.
- it is recorded as an image data file including a composite image corresponding to the main image and a composite image corresponding to the thumbnail image (generated by resizing the 160 ⁇ 120 pixels from the composite image corresponding to the main image).
- the data recording format corresponding to this image follows the data recording format selected by the electronic camera in shooting mode!
- the electronic camera combines the first image and the second image in the image composition mode.
- Image composition processing is as follows: 1. Image selection, 2. Gain setting, 3. Composition, 4. Save order To do.
- the thumbnail image corresponding to the first image and the thumbnail corresponding to the second image After setting the gain of 2 above (after selecting the first image if the gain setting value may be the initial value “1.0”), the thumbnail image corresponding to the first image and the thumbnail corresponding to the second image
- the thumbnail image obtained by combining the image is displayed as “Pre view” on the image composition screen (FIGS. 11 to 13).
- thumbnail images can be added (synthesized) instantaneously to display a thumbnail composite image as “P review”, so that the user can check the exposure status of the combined image before performing image composition on the main image. Can be confirmed immediately.
- the recording format of the main image data is (1) “RAW” format
- the combined main image data can also be recorded in “RAW” format.
- synthesizing (calo-calculating) data in “RAW” format it is possible to suppress deterioration in gradation characteristics and other factors that are multiplied at the time of compositing compared to when compositing (adding) data in “JPEG”.
- recording the combined main image data in the “RAW” format it is possible to further combine the combined image with other images.
- the recording power of the main image data is shown by an example of distinguishing by the presence or absence of image processing and the difference in compression rate at the time of compression processing.
- data size pixel size such as L size and S size
- the thumbnail image data included in the image data file is used for composition for “Preview” display.
- the data size is smaller than the main image data and the image is an image
- the number of images to be combined is not limited to two images, and three images may be combined. It may be an image.
- an image composition apparatus may be configured by causing a device that handles electronic images, such as a photo storage device, a photo stand, or a PDA, to perform image composition processing.
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Abstract
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/666,081 US20090021594A1 (en) | 2004-10-26 | 2005-10-20 | Digital Camera and Image Combination Device |
EP05795739.1A EP1814315B1 (en) | 2004-10-26 | 2005-10-20 | Digital camera and image combination device |
US13/529,652 US8564691B2 (en) | 2004-10-26 | 2012-06-21 | Digital camera and image combination device |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004310301A JP4306584B2 (ja) | 2004-10-26 | 2004-10-26 | デジタルカメラ |
JP2004-310301 | 2004-10-26 | ||
JP2005000779A JP4379334B2 (ja) | 2005-01-05 | 2005-01-05 | 画像合成装置および電子カメラ |
JP2005-000779 | 2005-01-05 | ||
JP2005172215A JP2006352229A (ja) | 2005-06-13 | 2005-06-13 | デジタルカメラ |
JP2005-172215 | 2005-06-13 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US11/666,081 A-371-Of-International US20090021594A1 (en) | 2004-10-26 | 2005-10-20 | Digital Camera and Image Combination Device |
US13/529,652 Continuation US8564691B2 (en) | 2004-10-26 | 2012-06-21 | Digital camera and image combination device |
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Also Published As
Publication number | Publication date |
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EP3310037A1 (en) | 2018-04-18 |
EP1814315A1 (en) | 2007-08-01 |
EP1814315B1 (en) | 2017-12-20 |
US8564691B2 (en) | 2013-10-22 |
US20090021594A1 (en) | 2009-01-22 |
US20120262605A1 (en) | 2012-10-18 |
EP1814315A4 (en) | 2011-05-18 |
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