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authorPaul Elder <paul.elder@ideasonboard.com>2024-02-29 12:22:07 +0900
committerPaul Elder <paul.elder@ideasonboard.com>2024-05-09 20:31:06 +0900
commit1dc01bc9e6c32a8fb776f31cb957a251305de7e5 (patch)
tree09b2947ec7676a8a7d1b350d34c37636ceee898a /src/ipa/rpi/vc4
parent626172a16bba9a601c7652569ce9410631c1e6c0 (diff)
ipa: libipa: histogram: Add transform parameter to constructor
Add a parameter to the histogram constructor that takes a transformation function to apply to all the bins upon construction. This is necessary notably for the rkisp1, as the values reported from the hardware are 20 bits where the upper 16-bits are meaningful integer values and the lower 4 bits are fractional and meant to be discarded. As adding a right-shift parameter is probably too specialized, a generic function is added as a parameter instead. While at it, optimize the existing constructor to avoid push_back() into a vector with a known final size. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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