Apparatus and method for controlling position of image when the image enlarged or reduced
View Patent ↗Provided are an apparatus and method of displaying an image. In particular, provided are an apparatus and method of controlling an image enlarging/reducing region of a displayed image by resetting a reference point, which is a center point of the displayed image, enlarging/reducing a region of the displayed image with respect to the reset reference point, and displaying the enlarged/reduced region when a location of a displayed region of the displayed image changes within the displayed image. The method of includes: resetting a reference point, which is a center point of a currently displayed image, when a location of a displayed region of the currently displayed image is changed within the displayed image; and enlarging or reducing a region of the displayed image with respect to the reset reference point and displaying the enlarged or reduced region. Thus, there is no need to change the location of the displayed region after enlarging/reducing in order to obtain an image before enlarging or reducing, and a user can easily know which region of the entire image is being displayed.
1. A method for controlling the display of an image stored in a digital camera on a display of the digital camera, the method comprising:
displaying the image on the display of the digital camera;
zooming-in on a first non-central portion of the image being displayed, the first non-central portion occupying substantially an entire area of the display;
setting a first reference point for the first non-central portion of the image;
determining if the first non-central portion of the image is being resized according to a user input;
zooming-in from and zooming-out from the first non-central portion of the image relative to the determining step while maintaining the first reference point as a center of a second non-central portion of the image that includes at least a portion of the first non-central portion of the image;
determining if a third non-central portion of the image adjacent the first non-central portion of the image is being reproduced according to a user input;
changing the first reference point according to the moving step;
detecting a center coordinate of the third non-central portion of the image; and
comparing the center coordinate from the detecting step with the first reference point.
2. The method of claim 1 wherein the setting step comprises:
detecting a center coordinate of the first non-central portion of the image; and
storing the center coordinate in a memory.
3. The method of claim 1 wherein the changing step further comprises storing the center coordinate of the third non-central portion of the image in a memory.
4. The method of claim 1 wherein the changing step further comprises the step of replacing the first reference point with the center coordinate.
5. A digital camera including a housing, a lens unit on a front side of the housing, a user input including a zoom actuator and a pan actuator, a storage medium including an image file, a display on the rear side of the housing for reproducing the image file as an image on substantially an entire area of the display, and a processor in communication with the user input, the storage medium and the display, wherein the improvement comprises:
a reference point-setting module determining a first reference point of a first non-central, zoomed-in portion of the image, maintaining the first reference point relative to an actuation of the zoom actuator, and determining a second reference point of a second non-central, zoomed-in portion of the image that is adjacent the first non-central, zoomed-in portion relative to an actuation of the pan actuator, wherein the reference point-setting module replaces the first reference point with the second reference point relative to actuation of the pan actuator; determining if a third non-central portion of the image adjacent the first non-central portion of the image is being reproduced according to a user input; changing the first reference point according to the moving step; detecting a center coordinate of the third non-central portion of the image; and comparing the center coordinate from the detecting step with the first reference point.
6. The digital camera of claim 5 wherein the reference point-setting module determines at least one of the first and second reference points according to a center coordinate of at least one of the first non-central, zoomed-in portion, the second non-central, zoomed-in portion and the image.
7. The digital camera of claim 5 wherein the zoom actuator is operative in a photographing mode to control a zoom motor of the lens unit.
8. The digital camera of claim 5 wherein the pan actuator comprises an up-movement actuator, a down-movement actuator, a left-movement actuator and a right-movement actuator.