Format conversion

A method for reformatting a digital image having a number of pixels having associated digital data, the digital image having an associated length, width and aspect ratio defining an original format to a destination image having a number of pixels, the destination image having an associated length, width and aspect ratio defining a new format, wherein the number of pixels of the new format is greater than the number of pixels in the original format, the method comprising:

• normalizing the aspect ratio of the original image to that of the destination image;
• and
• adaptively filtering the digital data for each pixel using a filter selected from a plurality of filters based upon an image intensity surface near each pixel to produce new digital data for each pixel in the new format.

A method for reformatting a digital image having a number of pixels having associated digital data, the digital image having an associated length, width and aspect ratio defining an original format to a destination image having a number of pixels, the destination image having an associated length, width and aspect ratio defining a new format, wherein the number of pixels of the new format is greater than the number of pixels in the original format, the method comprising:

• normalizing the aspect ratio of the original image to that of the destination image;
• and
• adaptively filtering the digital data for each pixel using a filter selected from a plurality of filters based upon an image intensity surface near each pixel to produce new digital data for each new pixel in the new format.

A computer program product for use on a computer system for reformatting a digital image having a number of pixels defining an original format to a new format having a number of pixels, wherein the number of pixels of the new format is greater than the number of pixels in the original format, the computer program product comprising a computer usable medium having computer readable program code thereon, the computer readable program code comprising:

• computer code for upconverting the number of pixels in the original format to the number of pixels in the new format using a filter, wherein selection of the filter from a plurality of filters for a pixel location within the new format depends on an image intensity surface near the pixel location.