Image analysis – Color image processing
Reexamination Certificate
2006-03-14
2008-07-15
Couso, Jose L. (Department: 2624)
Image analysis
Color image processing
Reexamination Certificate
active
07400762
ABSTRACT:
Strategies are set forth for performing a scaling operation on image information using a filter. According to one exemplary implementation, the strategies involve: computing, based on scaling to be performed, a number of filter kernels required to implement the filter and a number of taps required for each filter kernel; pre-computing and storing the number of filter kernels; and applying the filter kernels to a row or column of the image information by repeatedly sequencing through the filter kernels if there are more pixel elements in the row or column than there are pre-calculated filter kernels. The scaling operation can employ a Catmull-Rom filter. Further, the scaling operations can be implemented by a pixel shader by assigning weighting information and delta-shifted versions of the image information to respective texture units of the pixel shader.
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Evans Glenn F.
Munsil Donald J.
Spears Stacey L.
Couso Jose L.
Lee & Hayes PLLC
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