358 lines
16 KiB
C++
358 lines
16 KiB
C++
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/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// Intel License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2000, Intel Corporation, all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// * The name of Intel Corporation may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Intel Corporation or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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//M*/
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#include "precomp.hpp"
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#define _CV_ACOS_TABLE_SIZE 513
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static const float icv_acos_table[_CV_ACOS_TABLE_SIZE] = {
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3.14159265f, 3.05317551f, 3.01651113f, 2.98834964f, 2.96458497f, 2.94362719f,
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2.92466119f, 2.90720289f, 2.89093699f, 2.87564455f, 2.86116621f, 2.84738169f,
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2.83419760f, 2.82153967f, 2.80934770f, 2.79757211f, 2.78617145f, 2.77511069f,
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2.76435988f, 2.75389319f, 2.74368816f, 2.73372510f, 2.72398665f, 2.71445741f,
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2.70512362f, 2.69597298f, 2.68699438f, 2.67817778f, 2.66951407f, 2.66099493f,
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2.65261279f, 2.64436066f, 2.63623214f, 2.62822133f, 2.62032277f, 2.61253138f,
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2.60484248f, 2.59725167f, 2.58975488f, 2.58234828f, 2.57502832f, 2.56779164f,
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2.56063509f, 2.55355572f, 2.54655073f, 2.53961750f, 2.53275354f, 2.52595650f,
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2.51922417f, 2.51255441f, 2.50594525f, 2.49939476f, 2.49290115f, 2.48646269f,
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2.48007773f, 2.47374472f, 2.46746215f, 2.46122860f, 2.45504269f, 2.44890314f,
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2.44280867f, 2.43675809f, 2.43075025f, 2.42478404f, 2.41885841f, 2.41297232f,
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2.40712480f, 2.40131491f, 2.39554173f, 2.38980439f, 2.38410204f, 2.37843388f,
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2.37279910f, 2.36719697f, 2.36162673f, 2.35608768f, 2.35057914f, 2.34510044f,
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2.33965094f, 2.33423003f, 2.32883709f, 2.32347155f, 2.31813284f, 2.31282041f,
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2.30753373f, 2.30227228f, 2.29703556f, 2.29182309f, 2.28663439f, 2.28146900f,
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2.27632647f, 2.27120637f, 2.26610827f, 2.26103177f, 2.25597646f, 2.25094195f,
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2.24592786f, 2.24093382f, 2.23595946f, 2.23100444f, 2.22606842f, 2.22115104f,
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2.21625199f, 2.21137096f, 2.20650761f, 2.20166166f, 2.19683280f, 2.19202074f,
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2.18722520f, 2.18244590f, 2.17768257f, 2.17293493f, 2.16820274f, 2.16348574f,
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2.15878367f, 2.15409630f, 2.14942338f, 2.14476468f, 2.14011997f, 2.13548903f,
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2.13087163f, 2.12626757f, 2.12167662f, 2.11709859f, 2.11253326f, 2.10798044f,
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2.10343994f, 2.09891156f, 2.09439510f, 2.08989040f, 2.08539725f, 2.08091550f,
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2.07644495f, 2.07198545f, 2.06753681f, 2.06309887f, 2.05867147f, 2.05425445f,
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2.04984765f, 2.04545092f, 2.04106409f, 2.03668703f, 2.03231957f, 2.02796159f,
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2.02361292f, 2.01927344f, 2.01494300f, 2.01062146f, 2.00630870f, 2.00200457f,
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1.99770895f, 1.99342171f, 1.98914271f, 1.98487185f, 1.98060898f, 1.97635399f,
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1.97210676f, 1.96786718f, 1.96363511f, 1.95941046f, 1.95519310f, 1.95098292f,
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1.94677982f, 1.94258368f, 1.93839439f, 1.93421185f, 1.93003595f, 1.92586659f,
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1.92170367f, 1.91754708f, 1.91339673f, 1.90925250f, 1.90511432f, 1.90098208f,
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1.89685568f, 1.89273503f, 1.88862003f, 1.88451060f, 1.88040664f, 1.87630806f,
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1.87221477f, 1.86812668f, 1.86404371f, 1.85996577f, 1.85589277f, 1.85182462f,
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1.84776125f, 1.84370256f, 1.83964848f, 1.83559892f, 1.83155381f, 1.82751305f,
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1.82347658f, 1.81944431f, 1.81541617f, 1.81139207f, 1.80737194f, 1.80335570f,
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1.79934328f, 1.79533460f, 1.79132959f, 1.78732817f, 1.78333027f, 1.77933581f,
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1.77534473f, 1.77135695f, 1.76737240f, 1.76339101f, 1.75941271f, 1.75543743f,
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1.75146510f, 1.74749565f, 1.74352900f, 1.73956511f, 1.73560389f, 1.73164527f,
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1.72768920f, 1.72373560f, 1.71978441f, 1.71583556f, 1.71188899f, 1.70794462f,
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1.70400241f, 1.70006228f, 1.69612416f, 1.69218799f, 1.68825372f, 1.68432127f,
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1.68039058f, 1.67646160f, 1.67253424f, 1.66860847f, 1.66468420f, 1.66076139f,
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1.65683996f, 1.65291986f, 1.64900102f, 1.64508338f, 1.64116689f, 1.63725148f,
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1.63333709f, 1.62942366f, 1.62551112f, 1.62159943f, 1.61768851f, 1.61377831f,
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1.60986877f, 1.60595982f, 1.60205142f, 1.59814349f, 1.59423597f, 1.59032882f,
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1.58642196f, 1.58251535f, 1.57860891f, 1.57470259f, 1.57079633f, 1.56689007f,
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1.56298375f, 1.55907731f, 1.55517069f, 1.55126383f, 1.54735668f, 1.54344917f,
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1.53954124f, 1.53563283f, 1.53172389f, 1.52781434f, 1.52390414f, 1.51999323f,
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1.51608153f, 1.51216900f, 1.50825556f, 1.50434117f, 1.50042576f, 1.49650927f,
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1.49259163f, 1.48867280f, 1.48475270f, 1.48083127f, 1.47690845f, 1.47298419f,
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1.46905841f, 1.46513106f, 1.46120207f, 1.45727138f, 1.45333893f, 1.44940466f,
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1.44546850f, 1.44153038f, 1.43759024f, 1.43364803f, 1.42970367f, 1.42575709f,
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1.42180825f, 1.41785705f, 1.41390346f, 1.40994738f, 1.40598877f, 1.40202755f,
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1.39806365f, 1.39409701f, 1.39012756f, 1.38615522f, 1.38217994f, 1.37820164f,
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1.37422025f, 1.37023570f, 1.36624792f, 1.36225684f, 1.35826239f, 1.35426449f,
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1.35026307f, 1.34625805f, 1.34224937f, 1.33823695f, 1.33422072f, 1.33020059f,
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1.32617649f, 1.32214834f, 1.31811607f, 1.31407960f, 1.31003885f, 1.30599373f,
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1.30194417f, 1.29789009f, 1.29383141f, 1.28976803f, 1.28569989f, 1.28162688f,
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1.27754894f, 1.27346597f, 1.26937788f, 1.26528459f, 1.26118602f, 1.25708205f,
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1.25297262f, 1.24885763f, 1.24473698f, 1.24061058f, 1.23647833f, 1.23234015f,
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1.22819593f, 1.22404557f, 1.21988898f, 1.21572606f, 1.21155670f, 1.20738080f,
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1.20319826f, 1.19900898f, 1.19481283f, 1.19060973f, 1.18639955f, 1.18218219f,
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1.17795754f, 1.17372548f, 1.16948589f, 1.16523866f, 1.16098368f, 1.15672081f,
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1.15244994f, 1.14817095f, 1.14388370f, 1.13958808f, 1.13528396f, 1.13097119f,
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1.12664966f, 1.12231921f, 1.11797973f, 1.11363107f, 1.10927308f, 1.10490563f,
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1.10052856f, 1.09614174f, 1.09174500f, 1.08733820f, 1.08292118f, 1.07849378f,
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1.07405585f, 1.06960721f, 1.06514770f, 1.06067715f, 1.05619540f, 1.05170226f,
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1.04719755f, 1.04268110f, 1.03815271f, 1.03361221f, 1.02905939f, 1.02449407f,
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1.01991603f, 1.01532509f, 1.01072102f, 1.00610363f, 1.00147268f, 0.99682798f,
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0.99216928f, 0.98749636f, 0.98280898f, 0.97810691f, 0.97338991f, 0.96865772f,
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0.96391009f, 0.95914675f, 0.95436745f, 0.94957191f, 0.94475985f, 0.93993099f,
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0.93508504f, 0.93022170f, 0.92534066f, 0.92044161f, 0.91552424f, 0.91058821f,
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0.90563319f, 0.90065884f, 0.89566479f, 0.89065070f, 0.88561619f, 0.88056088f,
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0.87548438f, 0.87038629f, 0.86526619f, 0.86012366f, 0.85495827f, 0.84976956f,
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0.84455709f, 0.83932037f, 0.83405893f, 0.82877225f, 0.82345981f, 0.81812110f,
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0.81275556f, 0.80736262f, 0.80194171f, 0.79649221f, 0.79101352f, 0.78550497f,
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0.77996593f, 0.77439569f, 0.76879355f, 0.76315878f, 0.75749061f, 0.75178826f,
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0.74605092f, 0.74027775f, 0.73446785f, 0.72862033f, 0.72273425f, 0.71680861f,
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0.71084240f, 0.70483456f, 0.69878398f, 0.69268952f, 0.68654996f, 0.68036406f,
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0.67413051f, 0.66784794f, 0.66151492f, 0.65512997f, 0.64869151f, 0.64219789f,
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0.63564741f, 0.62903824f, 0.62236849f, 0.61563615f, 0.60883911f, 0.60197515f,
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0.59504192f, 0.58803694f, 0.58095756f, 0.57380101f, 0.56656433f, 0.55924437f,
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0.55183778f, 0.54434099f, 0.53675018f, 0.52906127f, 0.52126988f, 0.51337132f,
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0.50536051f, 0.49723200f, 0.48897987f, 0.48059772f, 0.47207859f, 0.46341487f,
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0.45459827f, 0.44561967f, 0.43646903f, 0.42713525f, 0.41760600f, 0.40786755f,
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0.39790449f, 0.38769946f, 0.37723277f, 0.36648196f, 0.35542120f, 0.34402054f,
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0.33224495f, 0.32005298f, 0.30739505f, 0.29421096f, 0.28042645f, 0.26594810f,
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0.25065566f, 0.23438976f, 0.21693146f, 0.19796546f, 0.17700769f, 0.15324301f,
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0.12508152f, 0.08841715f, 0.00000000f
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};
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/*F///////////////////////////////////////////////////////////////////////////////////////
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// Name: icvCalcPGH
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// Purpose:
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// Calculates PGH(pairwise geometric histogram) for contour given.
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// Context:
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// Parameters:
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// contour - pointer to input contour object.
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// pgh - output histogram
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// ang_dim - number of angle bins (vertical size of histogram)
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// dist_dim - number of distance bins (horizontal size of histogram)
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// Returns:
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// CV_OK or error code
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// Notes:
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//F*/
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static CvStatus
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icvCalcPGH( const CvSeq * contour, float *pgh, int angle_dim, int dist_dim )
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{
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char local_buffer[(1 << 14) + 32];
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float *local_buffer_ptr = (float *)cvAlignPtr(local_buffer,32);
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float *buffer = local_buffer_ptr;
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double angle_scale = (angle_dim - 0.51) / icv_acos_table[0];
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double dist_scale = DBL_EPSILON;
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int buffer_size;
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int i, count, pass;
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int *pghi = (int *) pgh;
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int hist_size = angle_dim * dist_dim;
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CvSeqReader reader1, reader2; /* external and internal readers */
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if( !contour || !pgh )
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return CV_NULLPTR_ERR;
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if( angle_dim <= 0 || angle_dim > 180 || dist_dim <= 0 )
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return CV_BADRANGE_ERR;
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if( !CV_IS_SEQ_POINT_SET( contour ))
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return CV_BADFLAG_ERR;
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memset( pgh, 0, hist_size * sizeof( pgh[0] ));
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count = contour->total;
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/* allocate buffer for distances */
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buffer_size = count * sizeof( float );
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if( buffer_size > (int)sizeof(local_buffer) - 32 )
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{
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buffer = (float *) cvAlloc( buffer_size );
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if( !buffer )
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return CV_OUTOFMEM_ERR;
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}
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cvStartReadSeq( contour, &reader1, 0 );
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cvStartReadSeq( contour, &reader2, 0 );
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/* calc & store squared edge lengths, calculate maximal distance between edges */
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for( i = 0; i < count; i++ )
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{
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CvPoint pt1, pt2;
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double dx, dy;
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CV_READ_EDGE( pt1, pt2, reader1 );
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dx = pt2.x - pt1.x;
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dy = pt2.y - pt1.y;
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buffer[i] = (float)(1./sqrt(dx * dx + dy * dy));
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}
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/*
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do 2 passes.
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First calculates maximal distance.
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Second calculates histogram itself.
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*/
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for( pass = 1; pass <= 2; pass++ )
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{
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double dist_coeff = 0, angle_coeff = 0;
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/* run external loop */
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for( i = 0; i < count; i++ )
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{
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CvPoint pt1, pt2;
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int dx, dy;
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int dist = 0;
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CV_READ_EDGE( pt1, pt2, reader1 );
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dx = pt2.x - pt1.x;
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dy = pt2.y - pt1.y;
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if( (dx | dy) != 0 )
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{
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int j;
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if( pass == 2 )
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{
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dist_coeff = buffer[i] * dist_scale;
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angle_coeff = buffer[i] * (_CV_ACOS_TABLE_SIZE / 2);
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}
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|
|
|
||
|
|
/* run internal loop (for current edge) */
|
||
|
|
for( j = 0; j < count; j++ )
|
||
|
|
{
|
||
|
|
CvPoint pt3, pt4;
|
||
|
|
|
||
|
|
CV_READ_EDGE( pt3, pt4, reader2 );
|
||
|
|
|
||
|
|
if( i != j ) /* process edge pair */
|
||
|
|
{
|
||
|
|
int d1 = (pt3.y - pt1.y) * dx - (pt3.x - pt1.x) * dy;
|
||
|
|
int d2 = (pt4.y - pt1.y) * dx - (pt2.x - pt1.x) * dy;
|
||
|
|
int cross_flag;
|
||
|
|
int *hist_row = 0;
|
||
|
|
|
||
|
|
if( pass == 2 )
|
||
|
|
{
|
||
|
|
int dp = (pt4.x - pt3.x) * dx + (pt4.y - pt3.y) * dy;
|
||
|
|
|
||
|
|
dp = cvRound( dp * angle_coeff * buffer[j] ) +
|
||
|
|
(_CV_ACOS_TABLE_SIZE / 2);
|
||
|
|
dp = MAX( dp, 0 );
|
||
|
|
dp = MIN( dp, _CV_ACOS_TABLE_SIZE - 1 );
|
||
|
|
hist_row = pghi + dist_dim *
|
||
|
|
cvRound( icv_acos_table[dp] * angle_scale );
|
||
|
|
|
||
|
|
d1 = cvRound( d1 * dist_coeff );
|
||
|
|
d2 = cvRound( d2 * dist_coeff );
|
||
|
|
}
|
||
|
|
|
||
|
|
cross_flag = (d1 ^ d2) < 0;
|
||
|
|
|
||
|
|
d1 = CV_IABS( d1 );
|
||
|
|
d2 = CV_IABS( d2 );
|
||
|
|
|
||
|
|
if( pass == 2 )
|
||
|
|
{
|
||
|
|
if( d1 >= dist_dim )
|
||
|
|
d1 = dist_dim - 1;
|
||
|
|
if( d2 >= dist_dim )
|
||
|
|
d2 = dist_dim - 1;
|
||
|
|
|
||
|
|
if( !cross_flag )
|
||
|
|
{
|
||
|
|
if( d1 > d2 ) /* make d1 <= d2 */
|
||
|
|
{
|
||
|
|
d1 ^= d2;
|
||
|
|
d2 ^= d1;
|
||
|
|
d1 ^= d2;
|
||
|
|
}
|
||
|
|
|
||
|
|
for( ; d1 <= d2; d1++ )
|
||
|
|
hist_row[d1]++;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
for( ; d1 >= 0; d1-- )
|
||
|
|
hist_row[d1]++;
|
||
|
|
for( ; d2 >= 0; d2-- )
|
||
|
|
hist_row[d2]++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else /* 1st pass */
|
||
|
|
{
|
||
|
|
d1 = CV_IMAX( d1, d2 );
|
||
|
|
dist = CV_IMAX( dist, d1 );
|
||
|
|
}
|
||
|
|
} /* end of processing of edge pair */
|
||
|
|
|
||
|
|
} /* end of internal loop */
|
||
|
|
|
||
|
|
if( pass == 1 )
|
||
|
|
{
|
||
|
|
double scale = dist * buffer[i];
|
||
|
|
|
||
|
|
dist_scale = MAX( dist_scale, scale );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} /* end of external loop */
|
||
|
|
|
||
|
|
if( pass == 1 )
|
||
|
|
{
|
||
|
|
dist_scale = (dist_dim - 0.51) / dist_scale;
|
||
|
|
}
|
||
|
|
|
||
|
|
} /* end of pass on loops */
|
||
|
|
|
||
|
|
|
||
|
|
/* convert hist to floats */
|
||
|
|
for( i = 0; i < hist_size; i++ )
|
||
|
|
{
|
||
|
|
((float *) pghi)[i] = (float) pghi[i];
|
||
|
|
}
|
||
|
|
|
||
|
|
if( buffer != local_buffer_ptr )
|
||
|
|
cvFree( &buffer );
|
||
|
|
|
||
|
|
return CV_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
CV_IMPL void
|
||
|
|
cvCalcPGH( const CvSeq * contour, CvHistogram * hist )
|
||
|
|
{
|
||
|
|
int size[CV_MAX_DIM];
|
||
|
|
int dims;
|
||
|
|
|
||
|
|
if( !CV_IS_HIST(hist))
|
||
|
|
CV_Error( CV_StsBadArg, "The histogram header is invalid " );
|
||
|
|
|
||
|
|
if( CV_IS_SPARSE_HIST( hist ))
|
||
|
|
CV_Error( CV_StsUnsupportedFormat, "Sparse histogram are not supported" );
|
||
|
|
|
||
|
|
dims = cvGetDims( hist->bins, size );
|
||
|
|
|
||
|
|
if( dims != 2 )
|
||
|
|
CV_Error( CV_StsBadSize, "The histogram must be two-dimensional" );
|
||
|
|
|
||
|
|
if( !CV_IS_SEQ_POINT_SET( contour ) || CV_SEQ_ELTYPE( contour ) != CV_32SC2 )
|
||
|
|
CV_Error( CV_StsUnsupportedFormat, "The contour is not valid or the point type is not supported" );
|
||
|
|
|
||
|
|
IPPI_CALL( icvCalcPGH( contour, ((CvMatND*)(hist->bins))->data.fl, size[0], size[1] ));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* End of file. */
|