FIELD: physics, computer engineering.
SUBSTANCE: invention relates to a digital image processing device which employs image scaling to change the scale of a displayed image using a touch procedure. The digital image processing device comprises an interface processor to identify a touch gesture of a user applied to the surface of a touch-screen display when image data are displayed, the touch gesture of the user describing an arched trajectory, and a display control processor for controlling scaling up and scaling down of the displayed image based on the centre angle of the arched trajectory described by said gesture.
EFFECT: providing simple and dynamic change in sale of a displayed image.
16 cl, 15 dwg
