Optimize pixel counting in ImageFind using hardware POPCNT#4480
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Ray0907 wants to merge 1 commit intotesseract-ocr:mainfrom
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Optimize pixel counting in ImageFind using hardware POPCNT#4480Ray0907 wants to merge 1 commit intotesseract-ocr:mainfrom
Ray0907 wants to merge 1 commit intotesseract-ocr:mainfrom
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Ray0907
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Nov 22, 2025
Ray0907
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- Replaced bit-by-bit loops in HScanForEdge with word-level processing using hardware population count (POPCNT).
- Added helper to handle 32-bit word alignment and boundary masking efficiently.
- Optimized VScanForEdge by hoisting bit position calculations out of the inner loop.
- Added cross-platform POPCOUNT macros supporting GCC/Clang (__builtin_popcount) and MSVC (__popcnt).
- Replaced bit-by-bit loops in HScanForEdge with word-level processing using hardware population count (POPCNT). - Added helper to handle 32-bit word alignment and boundary masking efficiently. - Optimized VScanForEdge by hoisting bit position calculations out of the inner loop. - Added cross-platform POPCOUNT macros supporting GCC/Clang (__builtin_popcount) and MSVC (__popcnt).
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What time improvements do you observe? |
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