KR19990054523A - Filter Effect Control Device and Method of Digital Still Camera - Google Patents

Abstract

An image of a subject to be photographed is input through the lens 1, and the image input through the lens 1 is converted into a corresponding electric image signal using the CCD 2, and the A / D converter 3 ) To convert the video signal to the corresponding digital signal. The converted video signal is input to the digital signal processing unit 4, and the video signal is compressed or compressed in a corresponding state by a control operation of the operation control unit 5 in which the central processing unit 51, the memory unit 52, and the like are embedded. By performing the reconstruction operation and generating the filter effect in the set state, the compressed video signal is temporarily stored in the frame buffer 6. Therefore, the image signal stored in the frame buffer 6 is restored and output to the memory card 7 so that the user can output the captured image signal using a computer monitor or a printer connected to the outside, and perform correction or editing. . As a result, the filter color and filtering degree are selected and filtered by the user to satisfy various user's needs, and various filter effects can be obtained by selecting multiple filter colors and filtering degrees, and thus filter effects of special effects Can exert.

Description

Filter Effect Control Device and Method of Digital Still Camera

This invention relates to a digital still camera.

With the development of digital technology, a new type of camera using digital signal, i.e., the image of the subject is stored in memory as a digital signal represented by 0 and 1 so that the stored image can be directly connected to the computer without developing, printing, or scanning. Portable digital still cameras have been developed and are rapidly spreading.

The digital still camera converts an electric image signal of a subject into a digital signal by using an image pickup device such as a charge coupled device (CCD), and the like. The signal is stored in memory or the corresponding data is output through the output device.

Accordingly, a digital still camera that performs a photographing operation of a subject according to the same principle stores image data of a photographed subject on a floppy disk or a memory card that stores data without using a separate film like a conventional camera.

Therefore, instead of purchasing a film and performing a shooting operation for a predetermined number of shots, and storing the film in a film lab and finding a photograph taken after a few hours, the digital still camera is used to capture a film. Since the image signals are sequentially stored, the user can connect the captured image data to a computer for use.

That is, the image data can be output to a monitor of a computer, and the captured image can be immediately confirmed without a separate developing operation, and the editing operation can be executed as desired, such as easily enlarging or transforming the captured digital image.

In addition, since a filter function for generating a filter effect is built-in, when a user selects a filter function, an image effect using a filter may be exerted by processing an image signal in a predetermined state.

However, in the conventional digital still camera, since the filtering degree is already set and the filtering effect can be exhibited only in the set state, there is a problem that does not satisfy the needs of various users.

The technical problem to be achieved by the present invention is to allow the user to directly select the degree of filtering and the color of the filter.

1A is a block diagram of a filter effect control apparatus of a digital still camera according to an embodiment of the present invention,

1B is an external view of a filter effect selection switch according to an embodiment of the present invention,

2 is an operation flowchart of a filter effect control method of a digital still camera according to an embodiment of the present invention.

In order to solve this problem, in the present invention, by using a plurality of switches attached to the digital still camera, the user directly selects and stores the desired filter color and the degree of filtering.

In addition, it is preferable to select the filter color by the first and second direction switches for moving the cursor for menu selection in the up / down direction, and the third and fourth for moving the cursor for menu selection in the left / right direction. It is preferable to select the degree of filtering by the direction switch.

Then, with respect to the filter effect control apparatus for a digital still camera according to an embodiment of the present invention with reference to the accompanying drawings the most preferred embodiment that can be easily implemented by those of ordinary skill in the art An example will be described in detail with reference to the accompanying drawings.

1A is a block diagram of a filter effect control apparatus of a digital still camera according to an embodiment of the present invention, FIG. 1B is an external view of a filter effect selection switch according to an embodiment of the present invention, and FIG. 2 is an embodiment of the present invention. Is a flowchart illustrating a method of controlling a filter effect of a digital still camera.

The structure of the filter effect control apparatus of the digital still camera according to the embodiment of the present invention will be described with reference to FIG. 1A.

An image of a subject to be photographed is input through the lens 1, and the A / D converter 3 converts an image input through the lens 1 into a corresponding electric image signal using the CCD 2. ). As a result, the video signal in the analog state is converted into the corresponding digital signal. The video signal converted into the digital signal by the A / D conversion unit 3 is input to the digital signal processing unit 4, and the operation control unit 5 in which the central processing unit 51, the memory unit 52, and the like are embedded The compression or decompression operation of the video signal is executed in the corresponding state by the control operation of < RTI ID = 0.0 >), and < / RTI > Therefore, the image signal stored in the frame buffer 6 is restored to be output to the memory card 7, and the user outputs the captured image signal using a computer monitor or a printer connected to the outside, and corrects or edits the image signal. Run

At this time, the operation control unit 5 is connected to a menu selection switch (SW11) for performing a menu selection, and a plurality of switches (SW12 to SW15) for moving the cursor up, down, left and right to select the corresponding function, The menu selection switch SW11 and the plurality of switches SW12 to SW15 shown in FIG. 1B are mounted next to the liquid crystal display device 10 for the photographer to check a subject image input through the lens 1. Directional switches to select menus and menus.

Next, an operation of the filter effect control apparatus of the digital still camera according to the embodiment of the present invention will be described with reference to FIG. 2.

First, when power required for the operation of each device is supplied, the corresponding operation is executed, and the operation of the operation control unit 5 is also started (S10). Therefore, it is determined whether the menu setting switch SW11 has been operated in order to select various menus set in the digital still camera (S11).

If it is determined that the user operates the menu setting switch SW11 to select a menu, the CPU 51 of the operation controller 5 may set a menu to add a filtering effect to the captured image signal. It is determined whether the first or second direction switches SW12 and SW13 that move the position of the cursor in the up / down direction are operated (S12).

When a menu for exerting a filtering effect among various menus is selected by the operation of the first or second direction switches SW12 and SW13, the central processing unit 51 of the operation control unit 5 moves to the first or second direction. It is determined whether the filter effect determined by the switches SW12 and SW13 is a red effect, a green effect or a blue effect (S13).

When the filter effect of the color desired by the user is selected by the operation of the first or second direction switches SW12 and SW13 in the filter effect selection menu, the central processing unit 51 of the operation control unit 5 determines the position of the cursor. The operation state of the third or fourth directional switches SW14 and SW15 for moving to the right / right side is determined, and the degree of filtering selected by the user is determined (S14).

If the third direction switch SW14 for moving the cursor in the left direction is reduced, the degree of filtering effect is reduced by a set degree, and the fourth direction switch SW15 for moving the cursor in the right direction is operated. In this case, the filtering effect is increased by the set amount.

Therefore, the central processing unit 51 of the operation control unit 5 determines the operating state of the third or fourth directional switches SW14 and SW15, and determines the degree of filtering selected by the user.

According to the operation state of the first to fourth directional switches SW12 to SW15, if a filter effect and a filtering degree of a desired color are selected, it is again determined whether a filter effect of a different color is desired.

Accordingly, the central processing unit 51 of the operation control unit 5 determines whether the first or second direction switches SW12 and SW13 are operated to select a filter effect of a different color from the filter effect selection menu (S15). If the filter effect of the other color is selected instead of the filter effect of the already selected other color, the selected color is determined (S16).

In step S14, the operation state of the third or fourth directional switches SW14 and SW15 is determined, and the degree of filtering selected by the user is determined.

However, in the above step (S15), when the operation of the first or second direction switch (SW12, 13) for exhibiting a filter effect of a different color, the central processing unit 51 of the operation control unit 5 ) Determines that both the filter color and the filtering degree selected by the user are selected, and determines whether the menu setting switch SW11 is turned on (S17).

In order to get out of the filter effect menu, when the menu setting switch SW11 is turned on by the user, the central processing unit 51 of the operation control unit 5 controls the first to fourth direction switches SW12 to SW15 of the user. The filter color and the filtering degree set by the operation are stored in the memory unit 52 (S18). Therefore, the image signal photographed by the CCD 2 via the lens 1 is image-processed according to the filter color and the filtering degree set by the user stored in the memory unit 52 in the digital signal processing unit 4. The data is stored in the memory card 7 or externally output in real time to generate a filtering effect desired by the user.

When processing the image signal, the filter color and filtering degree are selected and filtered by the user to meet the needs of various users, and the multiple filter colors and filtering degrees can be selected to exert various filter effects. The filter effect can be exhibited.

Claims (6)

A menu setting unit for selecting various menus in which an operation state is changed by a user and is set; A filter effect selection unit for converting an operation state by a user and selecting a filter color and a filtering degree desired by the user; The menu setting unit is connected to the menu setting unit and the filter effect selecting unit, and the menu setting unit operates, and determines and stores the filter color and the filtering degree selected by the user by the operation of the filter effect selecting unit. An apparatus for controlling filter effects in a digital still camera, comprising: an operation controller configured to process a signal. The method of claim 1, wherein the filter effect selector, The filter effect control apparatus of the digital still camera, characterized in that the filter color is selected by the first and second direction switches (SW12, SW13) for moving the cursor for menu selection in the up / down direction. The method of claim 1, wherein the filter effect selector, The filter effect control device of the digital still camera, characterized in that the degree of filtering is selected by the third and fourth direction switches (SW14, SW15) for moving the cursor for menu selection in the left and right directions. Determining whether a menu setting unit for menu setting is operated; When the menu setting unit is operated, determining whether a filter effect menu is selected by an operation of the filter effect selecting unit; When the filter effect menu is selected, determining a selected filter color and a filtering degree; Determining whether the filter effect menu is reselected by an operation of the filter effect selector for the filter effect of another color; When the filter effect menu is reselected, determining a selected filter color and a filtering degree; Determining whether the menu setting unit for exiting the filter effect menu is operated when the filter effect menu is not selected again, and when the menu setting unit is operated, storing the selected filter color and filtering degree. How to control the filter effect of a digital still camera. The method of claim 4, wherein The filter effect control method of the digital still camera, characterized in that the filter color is selected using the first and second direction switches (SW12, SW13) for moving the cursor in the up / down direction for menu selection. The method of claim 4, wherein The filter degree control method of the digital still camera, characterized in that the degree of filtering is selected using the third and fourth direction switches (SW14, SW15) for moving the cursor for menu selection in the left and right directions.