This application claims the priority benefit of Korean Patent Application No. 10-2012-0087250, filed on Aug. 9, 2012 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.
1. Field
Embodiments of the invention relate to an image capture apparatus and method for obtaining an image of a subject.
2. Description of the Related Art
An image capture apparatus, such as a digital camera or a camcorder, supports scene modes in which an image capture mode is automatically set according to the status of a subject or surroundings thereof and an image is captured according to the set image capture mode. In this case, the image capture apparatus has an image processing algorithm for each scene mode such that when one of the scene modes is set, an image is processed according to an algorithm corresponding to the set scene mode. For example, in a portrait mode, the face of a subject is recognized through a function to capture an image of a smiling face. In a sports mode, shutter speed is increased to correctly capture an image of a moving subject.
According to circumstances, on the other hand, a user may be arbitrarily set image capture conditions to capture an image. To this end, the image capture apparatus supports a manual mode. In the manual mode, image capture conditions may be arbitrarily set according to user intention. In the manual mode, however, troublesome processes and much time are required to capture a desired image since most of the image capture conditions are manually set.
Various embodiments provide an image capture apparatus and method wherein the image capture apparatus automatically sets an image capture mode based on the status of a subject or surrounding thereof, and a user changes set values of image processing options of the set image capture mode as needed, thereby providing both convenience of an auto mode and flexibility of a manual mode.
Additional embodiments will be set forth in the description which follows and, in part, will become apparent from the description, or may be learned by practicing the embodiments.
In accordance with an embodiment, an image capture apparatus includes a scene mode selection unit that analyzes a live view image according to a predetermined scene selection algorithm and selects a scene mode based on result of the analysis, a display unit that displays a user interface to select an image processing option related to the selected scene mode and to change a set value of the selected image processing option, and a controller that receives the changed set value of the selected image processing option before an image is captured in the selected scene mode, applies the changed set value to the selected scene mode, and captures the live view image in the selected scene mode.
The user interface may include an image processing option selection unit that selects at least one image processing option, and a set value change unit that change a set value of the selected at least one image processing option.
The image processing option selection unit may sequentially display image processing options in response to manipulation of an arrow button.
The image processing option selection unit may scroll through image processing options in response to manipulation of a scroll bar.
The image processing option selection unit may display all image processing options, and one of the image processing options may be selected when the image processing option is touched on the display unit.
The user interface may further include a sample image display unit that displays a sample image corresponding to the changed set value of the selected image processing option.
The user interface may further include a help unit that displays information regarding the selected image processing option.
The user interface may further include a scene mode indication unit that indicates the selected scene mode.
In accordance with another embodiment, an image capture method includes analyzing a live view image according to a predetermined scene selection algorithm, selecting a scene mode based on result of the analysis, displaying a user interface to select an image processing option related to the selected scene mode before an image is captured in the selected scene mode and to change a set value of the selected image processing option on a display unit, receiving the changed set value of the selected image processing option, and applying the changed set value in the scene mode to capture the live view image.
The image capture method may further include receiving an operation mode input selection that changes the set value of the selected image processing option in the selected scene mode.
The image capture method may further include displaying a preview image having the changed set value applied thereto through the display unit.
The changed set value of the selected image processing option may be generated through user manipulation of the user interface.
In accordance with another embodiment, an image capture apparatus includes a scene mode selection unit that analyzes a live view image according to a predetermined scene selection algorithm and selects a scene mode based on result of the analysis, a display unit that displays image processing options related to the selected scene mode and sets values of the image processing options, a manipulation unit that selects one of the image processing options displayed on the display unit and changes the set value of the selected image processing option, and a controller that receives the changed set value of the selected image processing option before an image is captured in the selected scene mode, applies the changed set value to the selected scene mode, and captures the live view image in the selected scene mode.
The manipulation unit may include a vertical arrow key and a horizontal arrow key. The image processing option may be selected through the vertical arrow key or the horizontal arrow key, and the set value of the selected image processing option displayed on the display unit may be changed through the horizontal arrow key or the vertical arrow key.
The manipulation unit may include a command dial and an arrow key. The image processing option may be selected through the command dial, and the set value of the selected image processing option displayed on the display unit may be changed through the arrow key.
The manipulation unit may include a command dial and a wheel. The image processing option may be selected through the command dial, and the set value of the selected image processing option displayed on the display unit may be changed through the wheel.
The user interface may further include a sample image display unit that displays a sample image corresponding to the changed set value of the selected image processing option.
The user interface may further include a help unit that displays information regarding the selected image processing option.
The user interface may further include a scene mode indication unit that indicates the selected scene mode.
In accordance with another embodiment, an image capture apparatus includes a scene mode receiving unit that receives selection of a scene mode, a display unit that displays a user interface including an image processing option selection unit to select at least one image processing option related to the selected scene mode and a set value change unit to change a set value of the selected image processing option, and a controller that receives the changed set value of the selected image processing option before an image is captured in the selected scene mode, applies the changed set value to the selected scene mode, and captures the live view image in the selected scene mode.
The image processing option selection unit may sequentially display image processing options in response to manipulation of an arrow button.
The image processing option selection unit may scroll through image processing options in response to manipulation of a scroll bar.
The image processing option selection unit may display all image processing options, and one of the image processing options may be selected when the image processing option is touched on the display unit.
In accordance with another embodiment, an image capture apparatus includes a manipulation unit that receives selection of a smart manual mode to change a set value of an image processing option related to a scene mode selected by the image capture apparatus, a scene mode selection unit that analyzes a live view image according to a predetermined scene selection algorithm and selects a scene mode from a plurality of scene modes based on result of the analysis, a display unit that displays a user interface including an image processing option selection unit to select at least one image processing option related to the selected scene mode, a set value change unit to change a set value of the selected image processing option, a sample image display unit to display a sample image corresponding to the changed set value of the selected image processing option, and a help unit to display information regarding the selected image processing option, and a controller that receives the changed set value of the selected image processing option before an image is captured in the selected scene mode, displays a preview image having the changed set value applied thereto in the selected scene mode through the display unit, and captures the live view image upon receiving an image capture signal.
The image capture apparatus may further include an operation mode selection unit that allows entry into the smart manual mode.
In accordance with another embodiment, an image capture apparatus includes a scene mode selection unit that analyzes a live view image according to a predetermined scene selection algorithm and selects a scene mode based on the analysis result, a display unit that displays a user interface to batch change a plurality of set values of an image processing option related to the selected scene mode, and a controller that receives the batch changed set values of the selected image processing option before an image is captured in the selected scene mode, applies the changed set values to the selected scene mode, and captures the live view image in the selected scene mode.
The user interface may include an image scene mode selection unit that selects at least one scene mode and a set value change unit that batch changes set values of an image processing option of the selected at least one scene mode.
The scene mode selection unit may sequentially display scene modes in response to manipulation of an arrow button.
The scene mode selection unit may be scroll through scene modes in response to manipulation of a scroll bar.
The scene mode selection unit may display all scene modes, and one of the scene modes may be selected when the scene mode is touched on the display unit.
The user interface may further include a sample image display unit that displays a sample image corresponding to the batch changed set values of the image processing option of the selected scene mode.
The user interface may further include a help unit that displays information regarding the selected scene mode.
The user interface may further include a scene mode indication unit that indicates the selected scene mode.
In accordance with a further embodiment, an image capture apparatus includes a scene mode receiving unit that receives selection of a scene mode, a display unit that displays a user interface to batch change a plurality of set values of at least one image processing option related to the selected scene mode, and a controller that receives the batch changed set values of the selected image processing option before an image is captured in the selected scene mode, applies the changed set values to the selected scene mode, and captures a live view image in the selected scene mode.
The user interface may further include a scene mode selection unit that sequentially displays scene modes in response to manipulation of an arrow button.
The user interface may further include a scene mode selection unit that scrolls through scene modes in response to manipulation of a scroll bar.
The user interface may further include a scene mode selection unit that displays all scene modes, and one of the scene modes is selected when the scene mode is touched on the display unit.
These and/or other aspects will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
The controller 100 controls a lens driver 11, an aperture driver 21, a shutter driver 91, and an imaging device driver 31. Consequently, the position of a lens 10, an opening degree of an aperture 20, release of a shutter 90, and the sensitivity of an imaging device 30 are controlled. The imaging device 30 converts an input optical signal into an analog electrical signal. An analog/digital converter 40 converts the analog electrical signal into digital data. Alternatively, the imaging device 30 may perform digital conversion without using the analog/digital converter 40. If an electronic shutter is used instead of the shutter 90, a shutter function is achieved through electronic control of the imaging device 30, the controller 100 may control the imaging device 30 to perform the shutter function.
The image data, generated by the imaging device 30 and converted by the analog/digital converter 40, may be input to a digital signal processor 50 via a memory 60 or directly input to the digital signal processor 50. The image data may also be input to the controller 100 as needed. The memory 60 may include a read only memory (ROM) or a random access memory (RAM). The digital signal processor 50 may perform digital signal processing, such as gamma correction and white balance changes, as needed.
The image data output from the digital signal processor 50 are transmitted to the display unit 152, by which the image data are displayed as an image. In this embodiment, the display unit 152 may be a touchscreen, which is touched to perform a predetermined input operation. The image data output from the digital signal processor 50 are input to a storage/reading controller 71 via the memory 60 or directly input to the storage/reading controller 71. The storage/reading controller 71 stores the image data in a storage medium 70 as an image file according user request or a predetermined automatic storage routine. The storage/reading controller 71 may read data from an image file stored in the storage medium 70 and provides the data to the display unit 152 via the memory 60 or another route such that the display unit 152 displays an image. The storage medium 70 may be detachably mounted in a memory slot or fixedly mounted in the image capture apparatus 150.
As shown in
Scene modes supported in the <smart manual mode> according to the embodiment are as follows. However, the scene modes are not limited to the following modes, and much more scene modes may be supported to produce various expressions based on user intention.
<Beauty Portrait>
A <beauty portrait> scene mode is a kind of portrait mode based on a facial recognition function. In the <beauty portrait> scene mode, image processing options, such as tone curve, blur, F number, and face color, may be adjusted according to user intention to produce a clear and aesthetically pleasing face image.
<Sensitive Landscape>
A <sensitive landscape> scene mode is a kind of landscape mode to express a sensitive landscape. The <sensitive landscape> scene mode may be selected in a case in which predetermined brightness (10 LV under cloudy conditions or 13 to 16 LV on a clear day) and a predetermined length (5M or more) are satisfied. In the <sensitive landscape> scene mode, image processing options, such as saturation and sharpness, may be adjusted according to user intention to produce a vivid and aesthetically pleasing landscape image.
<Romantic Sunset>
A <romantic sunset> scene mode is a kind of landscape mode, which may be selected in a case in which red and yellow components of hue information occupy a predetermined portion (about 40%) at dusk, i.e., at normal brightness (5 to 8 LV). ‘At dusk’ may be determined through time information. In the <romantic sunset> scene mode, image processing options, such as white balance, sharpness, and contrast, may be adjusted according to user intention to produce a romantic sunset image. The white balance may be adjusted to a high color temperature to emphasize sunset light.
<Mood White>
A <mood white> scene mode may be selected in a case in which color information is 20 to 30% in a condition of about 8 LV or more. In the <mood white> scene mode, image processing options, such as saturation and exposure value, may be adjusted according to user intention to produce a mood white image.
<Mood Backlight>
A <mood backlight> scene mode is a kind of backlight mode, which may be selected in a case in which a contrast between a high region and a low region is about 70% based on histogram information included in image data. In the <mood backlight> scene mode, image processing options, such as exposure value and contrast, may be adjusted according to user intention to produce a mood backlight image. When both the exposure value and contrast are increased, a contrast effect between a subject and background is increased while the brightness of the subject is sufficiently secured.
<Beautiful Night>
A <beautiful night> scene mode is a kind of landscape mode, which may be selected at evening, i.e. at normal brightness (about 5 LV or less). In the <beautiful night> scene mode, a shutter speed option may be adjusted according to user intention. If the shutter speed is decreased (becomes slower), motion of a moving subject may be expressed. On the other hand, if the shutter speed is increased (becomes faster), an effect due to shake of the image capture apparatus 150 is reduced to obtain a vivid image.
<Beautiful Scenery>
A <beautiful scenery> scene mode is a scene mode including both a portrait and landscape, which may be selected in a case in which a face size of a sensed portrait is less than a predetermined level (about 20% or less of the entire image) while predetermined brightness (10 LV under cloudy conditions or 13 to 16 LV on a clear day) and a predetermined length (5M or more) are satisfied. In the <beautiful scenery> scene mode, the landscape is more important than the portrait. Consequently, a color option may be adjusted according to user intention to produce a beautiful scenery image.
<Background Blur or Closeup>
A <background blur or closeup> scene mode may be selected in a case in which the distance between the image capture apparatus 150 and a subject is less than a predetermined multiple (for example, 10 times) of the focal distance. In the <background blur or closeup> scene mode, option set values, such as color, sharpness, and F number, may be adjusted according to user intention to produce a background blur or closeup image. If the aperture is opened (i.e. F number is decreased), the depth is decreased to improve a background blur effect. On the other hand, if the aperture is closed (i.e. F number is increased), the depth is increased to vividly express both a short-distance subject and a long-distance subject.
<Motion>
A <motion> scene mode is a scene mode to capture an image of a moving subject. This scene mode may be selected when motion of the subject is detected. The motion of the subject is detected as follows. An image capture region is divided into a plurality of unit regions, and when variation of brightness information and color information of each unit region exceeds a predetermined critical value, it is determined that there is a moving subject. The moving subject may be a moving person, flowing valley water, water spouting from a fountain, or a running car. In the <motion> scene mode, shutter speed is provided as an option. If the shutter speed is decreased (becomes slower) in the <motion> scene mode, exposure time is increased, and therefore, motion of a moving subject may be expressed as an image (for example, a panning shot of a running car). On the other hand, if the shutter speed is increased (becomes faster) in the <motion> scene mode, water spouting from a fountain may be vividly expressed in an image.
As shown in
For selection of the scene mode, first, the digital signal processor 50 analyzes the live view image according to a predetermined scene selection algorithm (404). The controller 100 selects a scene mode most suitable for the current live view image based on the analysis result of the live view image according to the scene selection algorithm (406).
The controller 100 displays a user interface to allow a user to directly change set values of image processing options corresponding to the scene mode selected by the digital signal processor 50 on the display unit 152 (408). The user interface displayed on the display unit 152 may include an image processing option selection unit to select at least one image processing option and a set value change unit to change a set value of the selected image processing option. The user may select an image processing option through the image processing option selection unit displayed on the display unit 152 and change a set value of the one image processing option through the set value change unit displayed on the display unit 152. In another embodiment, an image processing option may be selected and a set value of the image processing option may be changed through a combination of the user interface displayed on the display unit 152 and the manipulation unit 200.
The controller 100 receives user set values (i.e., changed values) through user manipulation of the image processing option selection unit and the set value change unit of the user interface (410). Also, the controller 100 incorporates the received user set values into a current live view image to generate a preview image and displays the preview image on the display unit 152 (412). The user may confirm the resultant image having the user set values reflected therein through the preview image displayed on the display unit 152. When the preview image is desired, the user may manipulate the shutter release button 158 to generate an image capture signal.
When the image capture signal is generated through user manipulation of the shutter release button 158 and is received by the controller 100 (YES of 414), the controller 100 controls the lens 10, the aperture 20, the shutter 90, the imaging device 30, the analog/digital converter 40, and the digital signal processor 50 to capture an image corresponding to the preview image and controls the captured image to be stored in the storage medium 70 (416). Alternatively, the captured image may be transmitted to another apparatus (television or computer) connected to the image capture apparatus 150 through wired or wireless communication. When the image capture signal is not received at operation 414 (NO of 414), the preview image remains displayed for a predetermined period of time.
As shown in
As shown in
The controller 100 displays a user interface to allow a user to directly change set values of image processing options corresponding to the scene mode selected by the user on the display unit 152 (604). The user interface displayed on the display unit 152 may include an image processing option selection unit to select at least one image processing option and a set value change unit to change a set value of the at least one image processing option. The user may select an image processing option through the image processing option selection unit displayed on the display unit 152 and change a set value of the one image processing option through the set value change unit displayed on the display unit 152. In another embodiment, an image processing option may be selected and a set value of the image processing option may be changed through a combination of the user interface displayed on the display unit 152 and the manipulation unit 200.
The controller 100 receives user set values (i.e., changed values) through user manipulation of the image processing option selection unit and the set value change unit of the user interface (606). Also, the controller 100 incorporates the received user set values into a current live view image to generate a preview image and displays the preview image on the display unit 152 (608). The user may confirm the resultant image having the user set values reflected therein through the preview image displayed on the display unit 152. When the preview image is desired, the user may manipulate the shutter release button 158 to generate an image capture signal.
When the image capture signal is generated through user manipulation of the shutter release button 158 and is received by the controller 100 (YES of 610), the controller 100 controls the lens 10, the aperture 20, the shutter 90, the imaging device 30, the analog/digital converter 40, and the digital signal processor 50 to capture an image corresponding to the preview image and controls the captured image to be stored in the storage medium 70 (612). Alternatively, the captured image may be transmitted to another apparatus (television or computer) connected to the image capture apparatus 150 through wired or wireless communication. When the image capture signal is not received at operation 610 (NO of 610), the preview image remains displayed for a predetermined period of time.
Also, the user interface shown in
Also, in the user interface shown in
Also, the user interface shown in
In the embodiment shown in
To this end, as shown in
In addition, <mood white>, <mood backlight>, <beautiful night>, <beautiful scenery>, <background blur or closeup>, and <motion> scene modes supported in the <smart manual mode> according to the embodiments as previously described may be individually selected, and set values of image processing options of the selected scene mode may be batch changed. Embodiments may be applied to other scene modes that are different from the above-mentioned scene modes to batch change set values of image processing options thereof.
In accordance with an embodiment as described above, an image capture apparatus automatically sets an image capture mode based on the status of a subject or surrounding thereof, and a user may change set values of image processing options of the set image capture mode as needed, thereby providing both convenience of an auto mode and flexibility of a manual mode.
Although a few embodiments of the invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
All references, including publications, patent applications, and patents, cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein.
For the purposes of promoting an understanding of the principles of the invention, reference has been made to the embodiments illustrated in the drawings, and specific language has been used to describe these embodiments. However, no limitation of the scope of the invention is intended by this specific language, and the invention should be construed to encompass all embodiments that would normally occur to one of ordinary skill in the art. The terminology used herein is for the purpose of describing the particular embodiments and is not intended to be limiting of exemplary embodiments of the invention. In the description of the embodiments, certain detailed explanations of related art are omitted when it is deemed that they may unnecessarily obscure the essence of the invention.
The apparatus described herein may comprise a processor, a memory for storing program data to be executed by the processor, a permanent storage such as a disk drive, a communications port for handling communications with external devices, and user interface devices, including a display, touch panel, keys, buttons, etc. When software modules are involved, these software modules may be stored as program instructions or computer readable code executable by the processor on a non-transitory computer-readable media such as magnetic storage media (e.g., magnetic tapes, hard disks, floppy disks), optical recording media (e.g., CD-ROMs, Digital Versatile Discs (DVDs), etc.), and solid state memory (e.g., random-access memory (RAM), read-only memory (ROM), static random-access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), flash memory, thumb drives, etc.). The computer readable recording media may also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. This computer readable recording media may be read by the computer, stored in the memory, and executed by the processor.
Also, using the disclosure herein, programmers of ordinary skill in the art to which the invention pertains may easily implement functional programs, codes, and code segments for making and using the invention.
The invention may be described in terms of functional block components and various processing steps. Such functional blocks may be realized by any number of hardware and/or software components configured to perform the specified functions. For example, the invention may employ various integrated circuit components, e.g., memory elements, processing elements, logic elements, look-up tables, and the like, which may carry out a variety of functions under the control of one or more microprocessors or other control devices. Similarly, where the elements of the invention are implemented using software programming or software elements, the invention may be implemented with any programming or scripting language such as C, C++, JAVA®, assembler, or the like, with the various algorithms being implemented with any combination of data structures, objects, processes, routines or other programming elements. Functional aspects may be implemented in algorithms that execute on one or more processors. Furthermore, the invention may employ any number of conventional techniques for electronics configuration, signal processing and/or control, data processing and the like. Finally, the steps of all methods described herein may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context.
For the sake of brevity, conventional electronics, control systems, software development and other functional aspects of the systems (and components of the individual operating components of the systems) may not be described in detail. Furthermore, the connecting lines, or connectors shown in the various figures presented are intended to represent exemplary functional relationships and/or physical or logical couplings between the various elements. It should be noted that many alternative or additional functional relationships, physical connections or logical connections may be present in a practical device. The words “mechanism”, “element”, “unit”, “structure”, “means”, and “construction” are used broadly and are not limited to mechanical or physical embodiments, but may include software routines in conjunction with processors, etc.
The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. Numerous modifications and adaptations will be readily apparent to those of ordinary skill in this art without departing from the spirit and scope of the invention as defined by the following claims. Therefore, the scope of the invention is defined not by the detailed description of the invention but by the following claims, and all differences within the scope will be construed as being included in the invention.
No item or component is essential to the practice of the invention unless the element is specifically described as “essential” or “critical”. It will also be recognized that the terms “comprises,” “comprising,” “includes,” “including,” “has,” and “having,” as used herein, are specifically intended to be read as open-ended terms of art. The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless the context clearly indicates otherwise. In addition, it should be understood that although the terms “first,” “second,” etc. may be used herein to describe various elements, these elements should not be limited by these terms, which are only used to distinguish one element from another. Furthermore, recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein.
Number | Date | Country | Kind |
---|---|---|---|
10-2012-0087250 | Aug 2012 | KR | national |