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IMAGE SCALING METHOD

  • US 20090189919A1
  • Filed: 01/28/2008
  • Published: 07/30/2009
  • Est. Priority Date: 01/28/2008
  • Status: Abandoned Application
First Claim
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1. An image scaling method, comprising:

  • providing an original image;

    dividing said original image into a plurality of original image columns, wherein each of said original image columns comprises a plurality of first original pixel rows;

    respectively performing a scaling step on said original image columns, thereby generating a plurality of scaled image columns, wherein said scaled image columns are one-to-one corresponding to said original image columns, said scaling step comprising;

    selecting a plurality of second pixel rows from said first pixel rows with respect to said original image column, wherein said second original pixel rows are consecutive to each other;

    writing said second original pixel rows into a first in first out (FIFO) buffer;

    performing an interpolation algorithm on the pixel row data stored in said FIFO buffer, thereby scaling the pixel row data to generate at least one first scaled pixel rows;

    sequentially writing the other original pixel rows of said first pixel rows into said FIFO buffer one by one, and performing the interpolation algorithm on the pixel row data stored in said FIFO buffer after each one of the other first original pixel rows is written into said FIFO buffer, thereby scaling the pixel row data stored in said line buffers to generate at least one second scaled pixel rows; and

    combining said first scaled pixel rows and said second scaled pixel rows to generate said scaled image column; and

    combining each of said scaled image columns to generate said scaled image.

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