KR19990026572A - Digital Still Camera with Image Change Display and Control Method thereof - Google Patents

Abstract

The present invention relates to a digital still camera having an image change display function and a control method thereof, comprising: an image sensor for outputting a signal for an image of a subject; Main image storing means for storing image data, and auxiliary image means; Compressed image storage means for storing compressed image data; Screen display means for displaying an image on a screen; The main image data for the signal from the image sensor is stored in the main image storage means, and the signal from the image sensor is changed in accordance with a change mode set by a user to generate a plurality of changed auxiliary image data. Storing the compressed image by storing the plurality of auxiliary image data as a plurality of images through the screen display means, and compressing image data corresponding to an image selected by a user among the plurality of images. It includes a video signal processing means for storing in the means, and by varying and displaying the image captured by the image sensor, the user can select the desired image.

Description

Digital Still Camera with Image Change Display and Control Method thereof

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital still camera having an image change display function and a control method thereof. More specifically, the present invention relates to an image change display that allows a user to select a desired image by displaying variously changed images. A digital still camera having a function and a control method thereof.

In general, a digital still camera includes an electronic image sensor for capturing an image of a subject, a signal processor for processing an image signal corresponding to the captured image, and a storage for storing the image signal. A device using a device or the like.

A CD (Charge Coupled Device) is commonly used as the electronic sensor.

The digital still camera performs all the tasks such as white balancing, auto focus, gamma correction, and color correction through the camera itself.

That is, when the camera shutter is pressed, shooting starts unconditionally and compressed data is stored in a memory card for storing an image.

At this time, white balancing, auto focus, exposure compensation, and gamma correction are performed by hardware or software algorithms already installed in the camera.

As a result, various hardware or software algorithms and corrections are performed inside the camera to obtain the optimal image, but the user cannot satisfy the difference caused by different preferences for image quality and color.

Therefore, it is impossible to correct an image in response to a user's request with a camera at the time of photographing, and after the corresponding image is transmitted to a computer, the image can be modified within a limited range.

Accordingly, an object of the present invention is to solve the above-mentioned problems, and by displaying a variety of images captured by the image sensor, the digital still camera having an image change display function to select a desired image And a control method thereof.

1 is a block diagram of a digital still camera having an image change display function according to an embodiment of the present invention,

2 is a view showing the appearance of a digital still camera having an image change display function according to an embodiment of the present invention,

3 is a diagram showing nine images displayed on the liquid crystal display 70 when the change mode is set in the digital still camera having the image change display function according to the embodiment of the present invention.

4 is a flowchart of a control method of a digital still camera having an image change display function according to an embodiment of the present invention.

As a means for achieving the above object, the present invention,

An image sensor for outputting a signal for an image of a subject;

Main image storage means for storing image data, and a plurality of auxiliary image means;

Compressed image storage means for storing compressed image data;

Screen display means for displaying an image on a screen;

The main image data for the signal from the image sensor is stored in the main image storage means, and the signal from the image sensor is changed according to a change mode set by a user to generate a plurality of changed auxiliary image data. And store the plurality of auxiliary image data as a plurality of images through the screen display means, compress the image data corresponding to the image selected by the user among the plurality of images, and compress the image data. And image signal processing means for storing in the storage means.

Another means of this invention for achieving the above object,

Displaying a menu relating to the change mode;

Determining whether a change mode has been selected by the user;

Determining whether to perform photographing;

Displaying a plurality of images by changing an image of the photographed subject according to the change mode selected by the user in the step;

Determining whether image selection by the user is completed;

And storing the image selected in the step.

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

1 is a block diagram of a digital still camera having an image change display function according to an embodiment of the present invention.

As shown in FIG. 1, a digital still camera having an image change display function according to an embodiment of the present invention includes a lens unit 10 for adjusting and passing external light; CD unit 20 for receiving the light passing through the lens unit 10 and outputting the analog signal; An analog / digital converter 30 for converting an electric signal output from the CD unit 20 into a corresponding digital signal and outputting the digital signal; A frame buffer unit 40 and an auxiliary memory unit 50 for storing digital image data; A compressed image storage unit 60 for storing the compressed image data; A liquid crystal display (70) for displaying a screen for image data; The main image data of the signal output from the analog / digital converter 30 is stored in the frame buffer unit 40, and a plurality of changed auxiliary image data are generated according to the change mode set by the user. ) And a video signal processor 80 for outputting a plurality of changed image data to the liquid crystal display 70 to display a corresponding screen.

The change mode according to the embodiment of the present invention is a brightness change mode, a focus change mode, and a color change mode.

In addition, the number of the plurality of auxiliary image data changed according to the change mode is nine, and the auxiliary memory unit 50 may simultaneously store nine auxiliary image data.

In addition, the compressed image storage unit 60 uses a memory card that can be separated from the camera body.

2 is a view showing the appearance of a digital still camera having an image change display function according to an embodiment of the present invention.

As shown in FIG. 2, a digital still camera having an image change display function according to an embodiment of the present invention is used to start shooting or to select one of the nine images displayed on the liquid crystal display 70 by the change mode. A shutter button 90 used; A scroll key 100 for moving a cursor to select one of the menus displayed on the liquid crystal display 70; A power button 110 for turning on / off the power of the camera; And a menu display button 120 for displaying a menu on the liquid crystal display 70.

3 is a view showing nine images displayed on the liquid crystal display 70 when the change mode is set in the digital still camera having the image change display function according to the embodiment of the present invention.

As shown in FIG. 3, a digital still camera having an image change display function according to an embodiment of the present invention has nine images obtained by changing a main image photographed when one of a change mode of brightness, focus, and color is set. Is displayed on the liquid crystal display unit 70 together.

The user can select and store one image from among the nine images displayed as described above.

4 is a flowchart of a control method of a digital still camera having an image change display function according to an embodiment of the present invention.

As shown in FIG. 4, the method for controlling a digital still camera having an image change display function according to an embodiment of the present invention includes determining whether to display a menu relating to a camera (S1); Displaying a menu relating to a camera (S2); Determining whether the menu selection regarding the camera is completed (S3); Determining whether to perform shooting (S4); Storing the main image photographed (S5); Determining whether the change mode is set (S6); If the change mode is set in the step (S6), changing the main image according to the set change mode and storing it as nine auxiliary images (S7); Displaying nine auxiliary images (S8); Determining whether the auxiliary image selection is completed (S9); Compressing and storing the selected auxiliary image (S10); If the change mode is not set in the step S6, the method may include compressing and storing the main image (S11).

The operation of the digital still camera having the image change display function according to the embodiment of the present invention by the above configuration is as follows.

First, when the power button 110 of the camera is pressed to supply power to the camera, the camera is initialized.

At this time, the change mode is turned off so as not to be set.

That is, when the user presses the shutter button 90 to photograph, the main image photographed is compressed and stored in the memory card 60.

If the user presses the menu display button 120 to set the change mode in order to obtain variously changed images (S1), a menu relating to the camera is displayed on the liquid crystal display 70 (S2).

At this time, the change mode setting is one of menus related to the camera.

The user moves the scroll key 100 up and down to position the cursor in the change mode setting menu, and then moves left and right again to position the cursor in one of the change modes of brightness, focus, and color change mode, and then the menu display button 120 Press to set the change mode (S3).

After setting the change mode as described above, the user views the image of the subject displayed on the liquid crystal display 70 and starts shooting by pressing the shutter button 90 in a desired scene (S4).

When the shutter button 90 is pressed, an image of a subject passes through the lens unit 10 and is captured by the CD unit 20, and the CD unit 20 outputs an analog signal.

The analog-to-digital converter 30 converts the analog signal for the image of the subject from the CD unit 20 into a digital signal and outputs the digital signal.

The image signal processor 80 receives a digital signal for the main image photographed from the analog / digital converter 30 and stores the corresponding image data in the frame buffer unit 40 (S5).

On the other hand, since the change mode is set (S6), the video signal processing unit 80 converts the main image stored in the frame buffer unit 40 into nine auxiliary images in accordance with the change mode to the auxiliary memory unit 50. In operation S7, the nine auxiliary images are displayed on the liquid crystal display 70 as illustrated in FIG. 3 (S8).

In this case, since the change mode is a change mode of one of brightness, focus, and color, the image signal processor 80 changes nine auxiliary images according to the set mode.

For example, 3 with 9 auxiliary images arranged 3 each When the display mode is displayed in three forms, the brightness of the auxiliary image in the upper left (A) of the liquid crystal display 70 is the darkest and the brightness of the auxiliary image in the lower right (B) is the brightest.

The focus change mode and the color change mode are also arranged in the same manner as described above so as not to confuse the user.

As shown in FIG. 3 of the nine auxiliary images displayed on the liquid crystal display 70, since the cursor is located on the centrally located auxiliary image, the user moves the cursor up, down, left, and right by using the scroll key 100. Position it in the image.

As such, when the desired auxiliary image is selected, the user presses the shutter button 90.

When the shutter button 90 is pressed (S9), the image signal processing unit 80 compresses the auxiliary image data corresponding to the auxiliary image in which the cursor is located among the auxiliary images stored in the auxiliary memory unit 50 and compresses the compressed image storage unit ( 60), the memory card 60 is stored here (S10).

By doing so, the memory card 60 stores data about the auxiliary image changed according to the change mode desired by the user.

If the change mode is not set, the main video data stored in the frame buffer unit 40 is compressed and stored in the memory card 60 (S11).

As described above, in the embodiment of the present invention, by varying the image captured through the CD unit 20 to display on the liquid crystal display 70, a digital image display function that allows the user to select the desired image A still camera and its control method can be provided.

Claims (6)

An image sensor for outputting a signal for an image of a subject; Main image storing means for storing image data, and auxiliary image storing means; Compressed image storage means for storing compressed image data; Screen display means for displaying an image on a screen; The main image data for the signal from the image sensor is stored in the main image storage means, and the signal from the image sensor is changed in accordance with a change mode set by a user to generate a plurality of changed auxiliary image data. And storing the plurality of auxiliary image data as a plurality of images through the screen display means, and compressing image data corresponding to an image selected by a user among the plurality of images by compressing the compressed image. A digital still camera having an image change display function comprising image signal processing means for storing in a storage means. The method of claim 1, The change mode described above is a brightness change mode, a focus change mode, and a color change mode. The method of claim 1, A digital still camera having an image change display function, wherein the number of the plurality of auxiliary images is nine. Displaying a menu relating to the change mode; Determining whether the mode selection is completed by the user; Performing photographing; Displaying a plurality of images by changing an image of the photographed subject according to the change mode selected by the user in the step; Determining whether image selection by the user is completed; The control method of the digital still camera having an image change display function comprising the step of storing the image selected in the step. The method of claim 4, wherein The change mode is a brightness change mode, a focus change mode, and a color change mode. The method of claim 4, wherein The control method of the digital still camera having an image change display function, characterized in that the number of the plurality of images is nine.