Method and apparatus for anti-aliasing scan conversion

A machine readable non-transitory medium containing executable computer program instructions which when executed by a data processing system cause said system to perform a method to scan convert an image on the data processing system, the method comprising:

• combining entries looked up from a look up table according to the image to generate first signals, each of the first signals representing a signal being convolved with a first kernel in a vertical direction using a convolution integral approach;
• supersampling the first signals to produce points in a horizontal direction;
• and
• vectorizing, by a vectorized circuit that stores rows of pixels of the image in the horizontal direction, computation of a weighted sum of the points according to a second kernel in the horizontal direction to generate pixels of a displayed image.

A data processing system to scan convert an image, the data processing system comprising:

• means for storing a lookup table;
• and
• means for a processor to:
• combine entries looked up from a look up table, stored in a memory in the data processing system, according to the image to generate first signals, each of the first signals representing a signal being convolved with a first kernel in a vertical direction using a convolution integral approach;
• supersample the first signals to produce points in a horizontal direction;
• and
• vectorize, by a vectorized circuit that stores rows of pixels of the image in the horizontal direction, computation of a weighted sum of the points according to a second kernel in the horizontal direction to generate pixels of a displayed image.

A method to convert an image on a data processing system, the method comprising:

• processing, by the data processing system, a representation of image data in a vertical direction to generate first data using a convolution integral technique;
• supersampling, by the data processing system, the first data to produce points in a horizontal direction;
• and
• vectorizing, by a vectorized circuit that stores rows of pixels of the image in the horizontal direction, computation of a weighted sum of the points according to a second kernel in the horizontal direction to generate pixels of a displayed image.

A machine readable non-transitory medium containing executable computer program instructions which when executed by a data processing system cause said system to perform a method to convert an image on a data processing system, the method comprising:

• processing a representation of image data in a vertical direction to generate first data using a convolution integral technique;
• supersampling the first data to produce points in horizontal direction;
• and
• vectorizing, by a vectorized circuit that stores rows of pixels of the image in the horizontal direction, computation of a weighted sum of the points according to a second kernel in the horizontal direction to generate pixels of a displayed image.