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    發(fā)布日期: 2023-07-10
  • 語(yǔ)言: 其他
  • 標(biāo)簽: BOW??詞袋??K-means??KNN??

資源簡(jiǎn)介

SIFT等局部特征的詞袋模型實(shí)現(xiàn)。包括K-means聚類(lèi),直方圖特征的形成,以及KNN分類(lèi)。

資源截圖

代碼片段和文件信息

#include?“Feature.h“

Feature::Feature()
:?datas(0)
{
}

Feature::Feature(int?dim?int?category?int?Id)
:?datas(dim0)
{
this->category?=?category;
this->Id?=?Id;
}

Feature::Feature(const?Feature&?feature)
:?datas(feature.datas)
{
this->category?=?feature.category;
this->Id?=?feature.Id;
}

double?Feature::getValueAt(int?index)
{
return?this->datas[index];
}

void?Feature::updateValue(int?pos?double?value)
{
this->datas[pos]=?value;
}

void?Feature::addValue(double?value)
{
this->datas.push_back(value);
}

int?Feature::getCategory()
{
return?this->category;
}

int?Feature::getId()
{
return?this->Id;
}

int?Feature::getDim()
{
return?this->datas.size();
}

double?Feature::calculateDistance(const?Feature&?feature?int?DistanceType)
{
if?(datas.size()?!=?feature.datas.size())
{
return?10000;
}
double?distance?=?0;
int?featureDim?=?datas.size();
for?(int?i?=?0;?i? {
distance?+=?pow(fabs(datas[i]?-?feature.datas[i])?DistanceType);
}
distance?=?pow(distance?1.?/?DistanceType);
return?distance;
}

istream&?operator>>(istream&?is?Feature&?feature)
{
int?featureDim?=?feature.datas.size();
for?(int?i?=?0;?i? {
is?>>?feature.datas[i];
}

if?(featureDim?!=?0)
{
is?>>?feature.category;
}

return?is;
}

Feature&?Feature::operator=(const?Feature&?feature)
{
this->datas?=?feature.datas;
this->category?=?feature.category;

return?*this;
}

Feature&?Feature::operator+=(const?Feature&?feature)
{
int?featureDim?=?this->datas.size();
if?(featureDim?!=?feature.datas.size())//特征值不同,不進(jìn)行加法
{
return?*this;
}

for?(int?i?=?0;?i? {
this->datas[i]?+=?feature.datas[i];
}
this->category?=?-1;//結(jié)果的特征類(lèi)別不確定
return?*this;
}

Feature&?Feature::operator-=(const?Feature&?feature)
{
int?featureDim?=?this->datas.size();
if?(featureDim?!=?feature.datas.size())//若特征維數(shù)不同,不能進(jìn)行減法
{
return?*this;
}

for?(int?i?=?0;?i? {
this->datas[i]?-=?feature.datas[i];
}
this->category?=?-1;//結(jié)果的特征類(lèi)別不確定
return?*this;
}

Feature&?Feature::operator*=?(const?Feature&?feature)
{
int?featureDim?=?this->datas.size();
if?(featureDim?!=?feature.datas.size())//若特征維數(shù)不同,不能進(jìn)行乘法
{
return?*this;
}

for?(int?i?=?0;?i? {
this->datas[i]?*=?feature.datas[i];
}
this->category?=?-1;//結(jié)果的特征類(lèi)別不確定
return?*this;
}

Feature&?Feature::operator/=?(double?scale)
{
if?(scale?==?0)
{
return?*this;//倍數(shù)為0不進(jìn)行除法
}
int?featureDim?=?this->datas.size();
for?(int?i?=?0;?i? {
this->datas[i]?/=?scale;
}
this->category?=?-1;//結(jié)果的特征類(lèi)別不確定
return?*this;
}

Feature?Feature::operator+(const?Feature&?feature)
{
return?Feature(*this)?+=?feature;
}

Feature?Feature::operator-(const?Feature&?feature)
{
return?Feature(*this)?-=?feature;
}

Feature?Feature::operator*(const?Feature&?feature)

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----
?????目錄???????????0??2014-05-19?10:24??Bag-of-visual-words\
?????目錄???????????0??2014-05-19?10:24??Bag-of-visual-words\Bag-of-visual-words\
?????文件????????4440??2013-12-04?10:27??Bag-of-visual-words\Bag-of-visual-words\Bag-of-visual-words.vcxproj
?????文件????????1692??2013-12-04?10:27??Bag-of-visual-words\Bag-of-visual-words\Bag-of-visual-words.vcxproj.filters
?????文件????????3211??2013-12-04?13:31??Bag-of-visual-words\Bag-of-visual-words\Feature.cpp
?????文件????????1271??2013-12-04?13:31??Bag-of-visual-words\Bag-of-visual-words\Feature.h
?????文件????????1503??2013-12-04?12:50??Bag-of-visual-words\Bag-of-visual-words\FeatureSet.cpp
?????文件?????????967??2013-12-04?13:22??Bag-of-visual-words\Bag-of-visual-words\FeatureSet.h
?????文件????????2105??2013-12-04?13:30??Bag-of-visual-words\Bag-of-visual-words\KMeans.cpp
?????文件?????????384??2013-12-04?13:25??Bag-of-visual-words\Bag-of-visual-words\KMeans.h
?????文件????????1416??2013-12-04?13:30??Bag-of-visual-words\Bag-of-visual-words\KNN.cpp
?????文件?????????278??2013-12-04?13:24??Bag-of-visual-words\Bag-of-visual-words\KNN.h
?????文件????????4232??2013-12-04?13:34??Bag-of-visual-words\Bag-of-visual-words\main.cpp
?????目錄???????????0??2013-12-02?16:33??Bag-of-visual-words\Bag-of-visual-words\局部特征\
?????文件?????????162??2013-12-02?16:02??Bag-of-visual-words\Bag-of-visual-words\局部特征\~$說(shuō)明文檔.docx
?????目錄???????????0??2013-12-02?16:33??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\
?????文件???????86594??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\0.txt
?????文件??????100038??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\1.txt
?????文件???????97678??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\10.txt
?????文件???????98340??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\11.txt
?????文件???????83300??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\12.txt
?????文件???????73132??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\13.txt
?????文件???????67523??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\14.txt
?????文件???????99991??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\15.txt
?????文件???????65251??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\16.txt
?????文件???????65990??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\17.txt
?????文件???????68322??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\18.txt
?????文件??????107469??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\19.txt
?????文件??????117125??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\2.txt
?????文件???????59707??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\20.txt
?????文件???????70635??2013-11-12?08:57??Bag-of-visual-words\Bag-of-visual-words\局部特征\恐龍(feature)\21.txt
............此處省略379個(gè)文件信息

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