Detect edges within 16X16 block
SSE2
| FwStatus | fwiEdgesDetect16x16_8u_C1R | ( | const Fw8u * pSrc, Fw32u srcStep, Fw8u EdgePelDifference, Fw8u EdgePelCount, Fw8u * pRes ); |
| EdgePelCount | Specifies the minimum number of pairs of elements that differ by more than EdgePelDifference. | |
| EdgePelDifference | Specifies the edge difference threshold between neighboring elements. | |
| pRes | Pointer to a result value. | |
| pSrc | Pointer to a block of DCT coefficients. | |
| srcStep | Source buffer step size (width of the buffer in bytes). |
This function detects edges within a 16X16 block by finding pairs of adjacent horizontal and vertical elements with a difference greater than the value specified by EdgePelDifference.
When the number of detected pairs is greater than EdgePelCount, pRes) = 1.
When the number of detected pairs is less than or equal to EdgePelCount, pRes)= 0.