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updated version number; removed unnecessary index.html and ChangeLog.htm

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Vadim Pisarevsky
2010-12-04 19:21:45 +00:00
parent ea3ccc6d61
commit a7a5dd051a
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doc/opencv_cheatsheet.tex
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@@ -134,7 +134,7 @@
\setlength{\columnsep}{2pt}
\begin{center}
\Large{\textbf{OpenCV 2.1 Cheat Sheet (C++)}} \\
\Large{\textbf{OpenCV 2.2 Cheat Sheet (C++)}} \\
\end{center}
\newlength{\MyLen}
\settowidth{\MyLen}{\texttt{letterpaper}/\texttt{a4paper} \ }
@@ -153,17 +153,17 @@
\section{Key OpenCV Classes}
\begin{tabular}{@{}p{\the\MyLen}%
@{}p{\linewidth-\the\MyLen}@{}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#point}{Point\_}} & Template 2D point class \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#point3}{Point3\_}} & Template 3D point class \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#size}{Size\_}} & Template size (width, height) class \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#vec}{Vec}} & Template short vector class \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#scalar}{Scalar}} & 4-element vector \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#rect}{Rect}} & Rectangle \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#range}{Range}} & Integer value range \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#mat}{Mat}} & 2D dense array (used as both a matrix or an image)\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#matnd}{MatND}} & Multi-dimensional dense array \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#sparsemat}{SparseMat}} & Multi-dimensional sparse array \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#ptr}{Ptr}} & Template smart pointer class
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#point}{Point\_}} & Template 2D point class \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#point3}{Point3\_}} & Template 3D point class \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#size}{Size\_}} & Template size (width, height) class \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#vec}{Vec}} & Template short vector class \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#vec}{Matx}} & Template small matrix class \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#scalar}{Scalar}} & 4-element vector \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#rect}{Rect}} & Rectangle \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#range}{Range}} & Integer value range \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#mat}{Mat}} & 2D or multi-dimensional dense array (can be used to store matrices, images, histograms, feature descriptors, voxel volumes etc.)\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#sparsemat}{SparseMat}} & Multi-dimensional sparse array \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#ptr}{Ptr}} & Template smart pointer class
\end{tabular}
\section{Matrix Basics}
@@ -173,7 +173,7 @@
\> \texttt{Mat image(240, 320, CV\_8UC3);} \\
\textbf{[Re]allocate a pre-declared matrix}\\
\> \texttt{image.\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#Mat::create}{create}(480, 640, CV\_8UC3);}\\
\> \texttt{image.\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#Mat::create}{create}(480, 640, CV\_8UC3);}\\
\textbf{Create a matrix initialized with a constant}\\
\> \texttt{Mat A33(3, 3, CV\_32F, Scalar(5));} \\
@@ -189,8 +189,8 @@
\> \texttt{Mat B22 = Mat(2, 2, CV\_32F, B22data).clone();}\\
\textbf{Initialize a random matrix}\\
\> \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-randu}{randu}(image, Scalar(0), Scalar(256)); }\textit{// uniform dist}\\
\> \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-randn}{randn}(image, Scalar(128), Scalar(10)); }\textit{// Gaussian dist}\\
\> \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-randu}{randu}(image, Scalar(0), Scalar(256)); }\textit{// uniform dist}\\
\> \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-randn}{randn}(image, Scalar(128), Scalar(10)); }\textit{// Gaussian dist}\\
\textbf{Convert matrix to/from other structures}\\
\>\textbf{(without copying the data)}\\
@@ -230,32 +230,32 @@
\section{Matrix Manipulations: Copying, Shuffling, Part Access}
\begin{tabular}{@{}p{\the\MyLen}%
@{}p{\linewidth-\the\MyLen}@{}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#Mat::copyTo}{src.copyTo(dst)}} & Copy matrix to another one \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#Mat::convertTo}{src.convertTo(dst,type,scale,shift)}} & \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ Scale and convert to another datatype \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#Mat::clone}{m.clone()}} & Make deep copy of a matrix \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#Mat::reshape}{m.reshape(nch,nrows)}} & Change matrix dimensions and/or number of channels without copying data \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#Mat::copyTo}{src.copyTo(dst)}} & Copy matrix to another one \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#Mat::convertTo}{src.convertTo(dst,type,scale,shift)}} & \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ Scale and convert to another datatype \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#Mat::clone}{m.clone()}} & Make deep copy of a matrix \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#Mat::reshape}{m.reshape(nch,nrows)}} & Change matrix dimensions and/or number of channels without copying data \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#Mat::row}{m.row(i)}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#Mat::col}{m.col(i)}} & Take a matrix row/column \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#Mat::row}{m.row(i)}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#Mat::col}{m.col(i)}} & Take a matrix row/column \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#Mat::rowRange}{m.rowRange(Range(i1,i2))}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#Mat::colRange}{m.colRange(Range(j1,j2))}} & \ \ \ \ \ \ \ Take a matrix row/column span \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#Mat::rowRange}{m.rowRange(Range(i1,i2))}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#Mat::colRange}{m.colRange(Range(j1,j2))}} & \ \ \ \ \ \ \ Take a matrix row/column span \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#Mat::diag}{m.diag(i)}} & Take a matrix diagonal \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#Mat::diag}{m.diag(i)}} & Take a matrix diagonal \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#index-1245}{m(Range(i1,i2),Range(j1,j2)), m(roi)}} & \ \ \ \ \ \ \ \ \ \ \ \ \ Take a submatrix \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#index-1245}{m(Range(i1,i2),Range(j1,j2)), m(roi)}} & \ \ \ \ \ \ \ \ \ \ \ \ \ Take a submatrix \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html\#Mat::repeat}{m.repeat(ny,nx)}} & Make a bigger matrix from a smaller one \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html\#Mat::repeat}{m.repeat(ny,nx)}} & Make a bigger matrix from a smaller one \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-flip}{flip(src,dst,dir)}} & Reverse the order of matrix rows and/or columns \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-flip}{flip(src,dst,dir)}} & Reverse the order of matrix rows and/or columns \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-split}{split(...)}} & Split multi-channel matrix into separate channels \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-split}{split(...)}} & Split multi-channel matrix into separate channels \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-merge}{merge(...)}} & Make a multi-channel matrix out of the separate channels \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-merge}{merge(...)}} & Make a multi-channel matrix out of the separate channels \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-mixchannels}{mixChannels(...)}} & Generalized form of split() and merge() \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-mixchannels}{mixChannels(...)}} & Generalized form of split() and merge() \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-randshuffle}{randShuffle(...)}} & Randomly shuffle matrix elements \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-randshuffle}{randShuffle(...)}} & Randomly shuffle matrix elements \\
\end{tabular}
@@ -278,15 +278,15 @@ other matrix operations, such as
\begin{itemize}
\item
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-add}{add()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-subtract}{subtract()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-multiply}{multiply()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-divide}{divide()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-absdiff}{absdiff()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#bitwise-and}{bitwise\_and()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#bitwise-or}{bitwise\_or()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#bitwise-xor}{bitwise\_xor()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-max}{max()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-min}{min()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-compare}{compare()}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-add}{add()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-subtract}{subtract()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-multiply}{multiply()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-divide}{divide()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-absdiff}{absdiff()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#bitwise-and}{bitwise\_and()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#bitwise-or}{bitwise\_or()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#bitwise-xor}{bitwise\_xor()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-max}{max()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-min}{min()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-compare}{compare()}}
-- correspondingly, addition, subtraction, element-wise multiplication ... comparison of two matrices or a matrix and a scalar.
@@ -312,49 +312,49 @@ Exa\=mple. \href{http://en.wikipedia.org/wiki/Alpha_compositing}{Alpha compositi
\item
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-sum}{sum()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-mean}{mean()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-mean-stddev}{meanStdDev()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-norm}{norm()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-countnonzero}{countNonZero()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-minmaxloc}{minMaxLoc()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-sum}{sum()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-mean}{mean()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-mean-stddev}{meanStdDev()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-norm}{norm()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-countnonzero}{countNonZero()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-minmaxloc}{minMaxLoc()}},
-- various statistics of matrix elements.
\item
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-exp}{exp()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-log}{log()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-pow}{pow()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-sqrt}{sqrt()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-carttopolar}{cartToPolar()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-polarToCart}{polarToCart()}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-exp}{exp()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-log}{log()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-pow}{pow()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-sqrt}{sqrt()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-carttopolar}{cartToPolar()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-polarToCart}{polarToCart()}}
-- the classical math functions.
\item
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-scaleadd}{scaleAdd()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-transpose}{transpose()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-gemm}{gemm()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-invert}{invert()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-solve}{solve()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-determinant}{determinant()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-trace}{trace()}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-eigen}{eigen()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-SVD}{SVD}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-scaleadd}{scaleAdd()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-transpose}{transpose()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-gemm}{gemm()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-invert}{invert()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-solve}{solve()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-determinant}{determinant()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-trace}{trace()}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-eigen}{eigen()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-SVD}{SVD}},
-- the algebraic functions + SVD class.
\item
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-dft}{dft()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-idft}{idft()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-dct}{dct()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html\#cv-idct}{idct()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-dft}{dft()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-idft}{idft()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-dct}{dct()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/core_operations_on_arrays.html\#cv-idct}{idct()}},
-- discrete Fourier and cosine transformations
\end{itemize}
For some operations a more convenient \href{http://opencv.willowgarage.com/documentation/cpp/basic_structures.html#matrix-expressions}{algebraic notation} can be used, for example:
For some operations a more convenient \href{http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html#matrix-expressions}{algebraic notation} can be used, for example:
\begin{tabbing}
\texttt{Mat}\={} \texttt{delta = (J.t()*J + lambda*}\\
\>\texttt{Mat::eye(J.cols, J.cols, J.type()))}\\
@@ -368,20 +368,20 @@ implements the core of Levenberg-Marquardt optimization algorithm.
\begin{tabular}{@{}p{\the\MyLen}%
@{}p{\linewidth-\the\MyLen}@{}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/image_filtering.html\#cv-filter2d}{filter2D()}} & Non-separable linear filter \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_image_filtering.html\#cv-filter2d}{filter2D()}} & Non-separable linear filter \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/image_filtering.html\#cv-sepfilter2d}{sepFilter2D()}} & Separable linear filter \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_image_filtering.html\#cv-sepfilter2d}{sepFilter2D()}} & Separable linear filter \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/image_filtering.html\#cv-blur}{boxFilter()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/image_filtering.html\#cv-gaussianblur}{GaussianBlur()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/image_filtering.html\#cv-medianblur}{medianBlur()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/image_filtering.html\#cv-bilateralfilter}{bilateralFilter()}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_image_filtering.html\#cv-blur}{boxFilter()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_image_filtering.html\#cv-gaussianblur}{GaussianBlur()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_image_filtering.html\#cv-medianblur}{medianBlur()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_image_filtering.html\#cv-bilateralfilter}{bilateralFilter()}}
& Smooth the image with one of the linear or non-linear filters \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/image_filtering.html\#cv-sobel}{Sobel()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/image_filtering.html\#cv-scharr}{Scharr()}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_image_filtering.html\#cv-sobel}{Sobel()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_image_filtering.html\#cv-scharr}{Scharr()}}
& Compute the spatial image derivatives \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/image_filtering.html\#cv-laplacian}{Laplacian()}} & compute Laplacian: $\Delta I = \frac{\partial ^ 2 I}{\partial x^2} + \frac{\partial ^ 2 I}{\partial y^2}$ \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_image_filtering.html\#cv-laplacian}{Laplacian()}} & compute Laplacian: $\Delta I = \frac{\partial ^ 2 I}{\partial x^2} + \frac{\partial ^ 2 I}{\partial y^2}$ \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/image_filtering.html\#cv-erode}{erode()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/image_filtering.html\#cv-dilate}{dilate()}} & Erode or dilate the image \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_image_filtering.html\#cv-erode}{erode()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_image_filtering.html\#cv-dilate}{dilate()}} & Erode or dilate the image \\
\end{tabular}
@@ -396,17 +396,17 @@ Exa\=mple. Filter image in-place with a 3x3 high-pass kernel\\
\begin{tabular}{@{}p{\the\MyLen}%
@{}p{\linewidth-\the\MyLen}@{}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/geometric_image_transformations.html\#cv-resize}{resize()}} & Resize image \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_geometric_image_transformations.html\#cv-resize}{resize()}} & Resize image \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/geometric_image_transformations.html\#cv-getrectsubpix}{getRectSubPix()}} & Extract an image patch \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_geometric_image_transformations.html\#cv-getrectsubpix}{getRectSubPix()}} & Extract an image patch \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/geometric_image_transformations.html\#cv-warpaffine}{warpAffine()}} & Warp image affinely\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_geometric_image_transformations.html\#cv-warpaffine}{warpAffine()}} & Warp image affinely\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/geometric_image_transformations.html\#cv-warpperspective}{warpPerspective()}} & Warp image perspectively\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_geometric_image_transformations.html\#cv-warpperspective}{warpPerspective()}} & Warp image perspectively\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/geometric_image_transformations.html\#cv-remap}{remap()}} & Generic image warping\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_geometric_image_transformations.html\#cv-remap}{remap()}} & Generic image warping\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/geometric_image_transformations.html\#cv-convertmaps}{convertMaps()}} & Optimize maps for a faster remap() execution\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_geometric_image_transformations.html\#cv-convertmaps}{convertMaps()}} & Optimize maps for a faster remap() execution\\
\end{tabular}
@@ -420,21 +420,21 @@ Example. Decimate image by factor of $\sqrt{2}$:\\
\begin{tabular}{@{}p{\the\MyLen}%
@{}p{\linewidth-\the\MyLen}@{}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/miscellaneous_image_transformations.html\#cvtColor}{cvtColor()}} & Convert image from one color space to another \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_miscellaneous_image_transformations.html\#cvtColor}{cvtColor()}} & Convert image from one color space to another \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/miscellaneous_image_transformations.html\#threshold}{threshold()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/miscellaneous_image_transformations.html\#adaptivethreshold}{adaptivethreshold()}} & Convert grayscale image to binary image using a fixed or a variable threshold \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_miscellaneous_image_transformations.html\#threshold}{threshold()}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_miscellaneous_image_transformations.html\#adaptivethreshold}{adaptivethreshold()}} & Convert grayscale image to binary image using a fixed or a variable threshold \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/miscellaneous_image_transformations.html\#floodfill}{floodFill()}} & Find a connected component using region growing algorithm\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_miscellaneous_image_transformations.html\#floodfill}{floodFill()}} & Find a connected component using region growing algorithm\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/miscellaneous_image_transformations.html\#floodfill}{integral()}} & Compute integral image \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_miscellaneous_image_transformations.html\#floodfill}{integral()}} & Compute integral image \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/miscellaneous_image_transformations.html\#distancetransform}{distanceTransform()}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_miscellaneous_image_transformations.html\#distancetransform}{distanceTransform()}}
& build distance map or discrete Voronoi diagram for a binary image. \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/miscellaneous_image_transformations.html\#floodfill}{watershed()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/miscellaneous_image_transformations.html\#grabcut}{grabCut()}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_miscellaneous_image_transformations.html\#floodfill}{watershed()}},
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_miscellaneous_image_transformations.html\#grabcut}{grabCut()}}
& marker-based image segmentation algorithms.
See the samples \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/c/watershed.cpp}{watershed.cpp}} and \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/c/grabcut.c}{grabcut.cpp}}.
See the samples \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/cpp/watershed.cpp}{watershed.cpp}} and \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/cpp/grabcut.cpp}{grabcut.cpp}}.
\end{tabular}
@@ -443,13 +443,13 @@ Example. Decimate image by factor of $\sqrt{2}$:\\
\begin{tabular}{@{}p{\the\MyLen}%
@{}p{\linewidth-\the\MyLen}@{}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/histograms.html\#calchist}{calcHist()}} & Compute image(s) histogram \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_histograms.html\#calchist}{calcHist()}} & Compute image(s) histogram \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/histograms.html\#calcbackproject}{calcBackProject()}} & Back-project the histogram \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_histograms.html\#calcbackproject}{calcBackProject()}} & Back-project the histogram \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/histograms.html\#equalizehist}{equalizeHist()}} & Normalize image brightness and contrast\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_histograms.html\#equalizehist}{equalizeHist()}} & Normalize image brightness and contrast\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/histograms.html\#comparehist}{compareHist()}} & Compare two histograms\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/imgproc_histograms.html\#comparehist}{compareHist()}} & Compare two histograms\\
\end{tabular}
@@ -463,12 +463,12 @@ Example. Compute Hue-Saturation histogram of an image:\\
\end{tabbing}
\subsection{Contours}
See \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/cpp/contours.cpp}{contours.cpp}} and \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/c/squares.c}{squares.c}}
See \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/cpp/contours.cpp}{contours.cpp}} and \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/cpp/squares.cpp}{squares.cpp}}
samples on what are the contours and how to use them.
\section{Data I/O}
\href{http://opencv.willowgarage.com/documentation/cpp/xml_yaml_persistence.html\#filestorage}{XML/YAML storages} are collections (possibly nested) of scalar values, structures and heterogeneous lists.
\href{http://opencv.willowgarage.com/documentation/cpp/core_xml_yaml_persistence.html\#filestorage}{XML/YAML storages} are collections (possibly nested) of scalar values, structures and heterogeneous lists.
\begin{tabbing}
\textbf{Wr}\=\textbf{iting data to YAML (or XML)}\\
@@ -520,9 +520,9 @@ samples on what are the contours and how to use them.
\begin{tabbing}
\textbf{Wr}\=\textbf{iting and reading raster images}\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/reading_and_writing_images_and_video.html\#cv-imwrite}{imwrite}{imwrite}("myimage.jpg", image);}\\
\texttt{Mat image\_color\_copy = \href{http://opencv.willowgarage.com/documentation/cpp/reading_and_writing_images_and_video.html\#cv-imread}{imread}("myimage.jpg", 1);}\\
\texttt{Mat image\_grayscale\_copy = \href{http://opencv.willowgarage.com/documentation/cpp/reading_and_writing_images_and_video.html\#cv-imread}{imread}("myimage.jpg", 0);}\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/highgui_reading_and_writing_images_and_video.html\#cv-imwrite}{imwrite}{imwrite}("myimage.jpg", image);}\\
\texttt{Mat image\_color\_copy = \href{http://opencv.willowgarage.com/documentation/cpp/highgui_reading_and_writing_images_and_video.html\#cv-imread}{imread}("myimage.jpg", 1);}\\
\texttt{Mat image\_grayscale\_copy = \href{http://opencv.willowgarage.com/documentation/cpp/highgui_reading_and_writing_images_and_video.html\#cv-imread}{imread}("myimage.jpg", 0);}\\
\end{tabbing}
\emph{The functions can read/write images in the following formats: \textbf{BMP (.bmp), JPEG (.jpg, .jpeg), TIFF (.tif, .tiff), PNG (.png), PBM/PGM/PPM (.p?m), Sun Raster (.sr), JPEG 2000 (.jp2)}. Every format supports 8-bit, 1- or 3-channel images. Some formats (PNG, JPEG 2000) support 16 bits per channel.}
@@ -543,61 +543,61 @@ samples on what are the contours and how to use them.
\begin{tabular}{@{}p{\the\MyLen}%
@{}p{\linewidth-\the\MyLen}@{}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/user_interface.html\#cv-namedwindow}{namedWindow(winname,flags)}} & \ \ \ \ \ \ \ \ \ \ Create named highgui window \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/highgui_user_interface.html\#cv-namedwindow}{namedWindow(winname,flags)}} & \ \ \ \ \ \ \ \ \ \ Create named highgui window \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/user_interface.html\#cv-destroywindow}{destroyWindow(winname)}} & \ \ \ Destroy the specified window \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/highgui_user_interface.html\#cv-destroywindow}{destroyWindow(winname)}} & \ \ \ Destroy the specified window \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/user_interface.html\#cv-imshow}{imshow(winname, mtx)}} & Show image in the window \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/highgui_user_interface.html\#cv-imshow}{imshow(winname, mtx)}} & Show image in the window \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/user_interface.html\#cv-waitKey}{waitKey(delay)}} & Wait for a key press during the specified time interval (or forever). Process events while waiting. \emph{Do not forget to call this function several times a second in your code.} \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/highgui_user_interface.html\#cv-waitKey}{waitKey(delay)}} & Wait for a key press during the specified time interval (or forever). Process events while waiting. \emph{Do not forget to call this function several times a second in your code.} \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/user_interface.html\#cv-createTrackbar}{createTrackbar(...)}} & Add trackbar (slider) to the specified window \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/highgui_user_interface.html\#cv-createTrackbar}{createTrackbar(...)}} & Add trackbar (slider) to the specified window \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/user_interface.html\#cv-setmousecallback}{setMouseCallback(...)}} & \ \ Set the callback on mouse clicks and movements in the specified window \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/highgui_user_interface.html\#cv-setmousecallback}{setMouseCallback(...)}} & \ \ Set the callback on mouse clicks and movements in the specified window \\
\end{tabular}
See \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/c/camshiftdemo.c}{camshiftdemo.c}} and other \href{https://code.ros.org/svn/opencv/trunk/opencv/samples/}{OpenCV samples} on how to use the GUI functions.
See \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/cpp/camshiftdemo.cpp}{camshiftdemo.cpp}} and other \href{https://code.ros.org/svn/opencv/trunk/opencv/samples/}{OpenCV samples} on how to use the GUI functions.
\section{Camera Calibration, Pose Estimation and Depth Estimation}
\begin{tabular}{@{}p{\the\MyLen}%
@{}p{\linewidth-\the\MyLen}@{}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/camera_calibration_and_3d_reconstruction.html\#cv-calibratecamera}{calibrateCamera()}} & Calibrate camera from several views of a calibration pattern. \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/calib3d_camera_calibration_and_3d_reconstruction.html\#cv-calibratecamera}{calibrateCamera()}} & Calibrate camera from several views of a calibration pattern. \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/camera_calibration_and_3d_reconstruction.html\#cv-findchessboardcorners}{findChessboardCorners()}} & \ \ \ \ \ \ Find feature points on the checkerboard calibration pattern. \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/calib3d_camera_calibration_and_3d_reconstruction.html\#cv-findchessboardcorners}{findChessboardCorners()}} & \ \ \ \ \ \ Find feature points on the checkerboard calibration pattern. \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/camera_calibration_and_3d_reconstruction.html\#cv-solvepnp}{solvePnP()}} & Find the object pose from the known projections of its feature points. \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/calib3d_camera_calibration_and_3d_reconstruction.html\#cv-solvepnp}{solvePnP()}} & Find the object pose from the known projections of its feature points. \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/camera_calibration_and_3d_reconstruction.html\#cv-stereocalibrate}{stereoCalibrate()}} & Calibrate stereo camera. \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/calib3d_camera_calibration_and_3d_reconstruction.html\#cv-stereocalibrate}{stereoCalibrate()}} & Calibrate stereo camera. \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/camera_calibration_and_3d_reconstruction.html\#cv-stereorectify}{stereoRectify()}} & Compute the rectification transforms for a calibrated stereo camera.\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/calib3d_camera_calibration_and_3d_reconstruction.html\#cv-stereorectify}{stereoRectify()}} & Compute the rectification transforms for a calibrated stereo camera.\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/camera_calibration_and_3d_reconstruction.html\#cv-initundistortrectifymap}{initUndistortRectifyMap()}} & \ \ \ \ \ \ Compute rectification map (for \texttt{remap()}) for each stereo camera head.\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/calib3d_camera_calibration_and_3d_reconstruction.html\#cv-initundistortrectifymap}{initUndistortRectifyMap()}} & \ \ \ \ \ \ Compute rectification map (for \texttt{remap()}) for each stereo camera head.\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/camera_calibration_and_3d_reconstruction.html\#cv-StereoBM}{StereoBM}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/camera_calibration_and_3d_reconstruction.html\#cv-StereoSGBM}{StereoSGBM}} & The stereo correspondence engines to be run on rectified stereo pairs.\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/calib3d_camera_calibration_and_3d_reconstruction.html\#cv-StereoBM}{StereoBM}}, \texttt{\href{http://opencv.willowgarage.com/documentation/cpp/calib3d_camera_calibration_and_3d_reconstruction.html\#cv-StereoSGBM}{StereoSGBM}} & The stereo correspondence engines to be run on rectified stereo pairs.\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/camera_calibration_and_3d_reconstruction.html\#cv-reprojectimageto3d}{reprojectImageTo3D()}} & Convert disparity map to 3D point cloud.\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/calib3d_camera_calibration_and_3d_reconstruction.html\#cv-reprojectimageto3d}{reprojectImageTo3D()}} & Convert disparity map to 3D point cloud.\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/camera_calibration_and_3d_reconstruction.html\#cv-findhomography}{findHomography()}} & Find best-fit perspective transformation between two 2D point sets. \\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/calib3d_camera_calibration_and_3d_reconstruction.html\#cv-findhomography}{findHomography()}} & Find best-fit perspective transformation between two 2D point sets. \\
\end{tabular}
To calibrate a camera, you can use \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/c/calibration.cpp}{calibration.cpp}} or
\texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/c/stereo\_calib.cpp}{stereo\_calib.cpp}} samples.
To calibrate a camera, you can use \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/cpp/calibration.cpp}{calibration.cpp}} or
\texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/cpp/stereo\_calib.cpp}{stereo\_calib.cpp}} samples.
To get the disparity maps and the point clouds, use
\texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/c/stereo\_match.cpp}{stereo\_match.cpp}} sample.
\texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/cpp/stereo\_match.cpp}{stereo\_match.cpp}} sample.
\section{Object Detection}
\begin{tabular}{@{}p{\the\MyLen}%
@{}p{\linewidth-\the\MyLen}@{}}
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/object_detection.html\#matchTemplate}{matchTemplate}} & Compute proximity map for given template.\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/objdetect__object_detection.html\#matchTemplate}{matchTemplate}} & Compute proximity map for given template.\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/object_detection.html\#CascadeClassifier}{CascadeClassifier}} & Viola's Cascade of Boosted classifiers using Haar or LBP features. Suits for detecting faces, facial features and some other objects without diverse textures. See \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/c/facedetect.cpp}{facedetect.cpp}}\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/objdetect__object_detection.html\#CascadeClassifier}{CascadeClassifier}} & Viola's Cascade of Boosted classifiers using Haar or LBP features. Suits for detecting faces, facial features and some other objects without diverse textures. See \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/cpp/facedetect.cpp}{facedetect.cpp}}\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/object_detection.html\#HOGDescriptor}{HOGDescriptor}} & N. Dalal's object detector using Histogram-of-Oriented-Gradients (HOG) features. Suits for detecting people, cars and other objects with well-defined silhouettes. See \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/c/peopledetect.cpp}{peopledetect.cpp}}\\
\texttt{\href{http://opencv.willowgarage.com/documentation/cpp/objdetect__object_detection.html\#HOGDescriptor}{HOGDescriptor}} & N. Dalal's object detector using Histogram-of-Oriented-Gradients (HOG) features. Suits for detecting people, cars and other objects with well-defined silhouettes. See \texttt{\href{https://code.ros.org/svn/opencv/trunk/opencv/samples/cpp/peopledetect.cpp}{peopledetect.cpp}}\\
\end{tabular}