Filter integer values with a floating-point vertical column kernel

Supported Technologies



FwStatus   fwiFilterColumn32f_8u_C1R ( const Fw8u * pSrcint srcStepFw8u * pDstint dstStepFwiSize dstRoiSizeconst Fw32f * pKernelint kernelSizeint yAnchor );
FwStatus   fwiFilterColumn32f_8u_C3R ( const Fw8u * pSrcint srcStepFw8u * pDstint dstStepFwiSize dstRoiSizeconst Fw32f * pKernelint kernelSizeint yAnchor );
FwStatus   fwiFilterColumn32f_8u_C4R ( const Fw8u * pSrcint srcStepFw8u * pDstint dstStepFwiSize dstRoiSizeconst Fw32f * pKernelint kernelSizeint yAnchor );
FwStatus   fwiFilterColumn32f_8u_AC4R ( const Fw8u * pSrcint srcStepFw8u * pDstint dstStepFwiSize dstRoiSizeconst Fw32f * pKernelint kernelSizeint yAnchor );
FwStatus   fwiFilterColumn32f_16s_C1R ( const Fw16s * pSrcint srcStepFw16s * pDstint dstStepFwiSize dstRoiSizeconst Fw32f * pKernelint kernelSizeint yAnchor );
FwStatus   fwiFilterColumn32f_16s_C3R ( const Fw16s * pSrcint srcStepFw16s * pDstint dstStepFwiSize dstRoiSizeconst Fw32f * pKernelint kernelSizeint yAnchor );
FwStatus   fwiFilterColumn32f_16s_C4R ( const Fw16s * pSrcint srcStepFw16s * pDstint dstStepFwiSize dstRoiSizeconst Fw32f * pKernelint kernelSizeint yAnchor );
FwStatus   fwiFilterColumn32f_16s_AC4R ( const Fw16s * pSrcint srcStepFw16s * pDstint dstStepFwiSize dstRoiSizeconst Fw32f * pKernelint kernelSizeint yAnchor );


dstRoiSize   Destination image ROI size.
dstStep   Destination buffer step size (width of the buffer in bytes).
kernelSize   Specifies the size of the kernel used in calculations.
pDst   Pointer to a location in a destination buffer.
pKernel   Pointer to the kernel array.
pSrc   Pointer to a location in a source buffer.
srcStep   Source buffer step size (width of the buffer in bytes).
yAnchor   Anchor cell that specifies the vertical alignment of the kernel with respect to the input pixel.


These functions step through an ROI in a source buffer, and calculate the sum of products of the kernel values and the corresponding pixel values in an area defined by the kernel size and anchor coordinate.

The filtered data is written to a destination buffer.

The vertical column kernel is an array of 32-bit single-precision floating point values; the anchor coordinate location is relative to the bottom of the kernel.