Patent ID: 7852382

Claim:
An electronic zooming device comprising: a vertical zooming unit for vertically resizing image data by a tap number m; a horizontal zooming unit for horizontally resizing the vertically-resized image data outputted from the vertical zooming unit by a tap number n; a tap coefficient setting unit for arbitrarily setting respective tap coefficients when the vertical zooming unit or the horizontal zooming unit is operated; a memory in which the image data is stored; and a memory controller for controlling input and output of the image data among the memory, the vertical zooming unit and the horizontal zooming unit, wherein: the image data is RGB Bayer-array data, and the vertical zooming unit and the horizontal zooming unit scale-down resize the image data in a state where: a filter tap number is (4n+1); a size of scale-down resizing is 1/(2n+1); only an odd-numbered coefficient of the respective tap coefficients from an end thereof is set to a real number; and an even-numbered coefficient of the respective tap coefficients from the end thereof is set to zero, so that the reduced image data is generated while RGB Bayer array of the image data is maintained.