Image interpolation apparatus

Details Image interpolation apparatus Image interpolation apparatus

G - Physics

06

T

G06T 1/00 (2006.01) G06T 3/40 (2006.01)

Patent

CA 2129092

Method and apparatus for providing interpolated image data from original image data represented in terms of pixels, each pixel defined in terms of value and position in an original image, includes an original image input receiving original image data from an original image source; a page memory operatively connected to the input for storing a page of original image received; a source of interpolation parameters indicating: a slow scan initial pixel value Xinit, a fast scan initial pixel value Yinit, a fast scan x offset value FSx, a fast scan y offset value FSy, a slow scan x offset value SSx, and a slow scan y offset value SSy; a bilinear sequencer calculating for each new pixel, from the received parameters a reference pixel within the image, and a pair of interpolation coefficients for interpolating new pixel values; a memory controller retrieving to an interpolation calculator from the page memory a set of original image pixels including the pixel at the reference position, and three other pixels whose position is a predetermined function of the position of the reference position pixel for each new pixel; and an interpolation calculator calculating a new pixel value as a function of the set of original pixels directed to it by the bilinear sequencer.

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