Public Member Functions |
| Matrix | affineWarp (const Matrix &t, const ObjectBox &b, const bool &preservear) const |
| | Performs an affine warping of an image section.
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| float | avg () const |
| | Returns the average value.
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| void | clip (float aMin, float aMax) |
| | Clips values that exceed the given range.
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| void | copyFromCharArray (unsigned char *source) |
| | fills the matrix from a char-array (size has to be already set)
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| void | copyFromFloatArray (float *source, int srcwidth, int width, int height) |
| | fills the matrix from a float-array (for a given size)
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| void | copyFromFloatArray (const float *const source, int srcwidth, int srcheight, int x, int y, int width, int height) |
| | fills the matrix from a sub-part of a float-array
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| float * | createSummedAreaTable () const |
| | Creates an Integral Image.
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| float ** | createSummedAreaTable2 () const |
| | Creates an Integral Image and an Integral Image of squared values.
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| void | cut (Matrix &result, const int x1, const int y1, const int x2, const int y2) |
| | Copies a rectangular part from the matrix into result, the size of result will be adjusted.
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| float * | data () const |
| | Gives access to the internal data representation.
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| void | derivativeX (Matrix &result) const |
| | Computes derivative in x direction (result will be in result)
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| void | derivativeY (Matrix &result) const |
| | Computes derivative in y direction (result will be in result)
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| void | downsample (int newWidth, int newHeight) |
| | Downsamples the matrix.
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| void | downsampleBilinear (int newWidth, int newHeight) |
| | Downsamples the matrix using bilinear interpolation.
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| void | drawBox (ObjectBox b, int value=255) |
| | Draws an ObjectBox into the image.
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| void | drawCross (int x, int y, int value=255, int crossSize=1) |
| | Draws a Cross.
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| void | drawDashedBox (ObjectBox b, int value=255, int dashLength=3, bool dotted=false) |
| | Draws a dashed ObjectBox into the image.
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| void | drawHistogram (const float *histogram, int x, int y, int value=255, int nbins=7, int psize=15) |
| | Draws a histogram at position (x,y)
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| void | drawLine (int x1, int y1, int x2, int y2, float value=255) |
| | Draws a line into the image.
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| void | drawNumber (int x, int y, int n, int value=255) |
| | Prints a number at position (x,y)
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| void | drawPatch (const Matrix &b, int x, int y, float avg=0) |
| | Draws a NN-Patch at position (x,y)
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| void | fill (const float value) |
| | Fills the matrix with the value value (see also operator =)
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| void | fromRGB (const Matrix &rMatrix, const Matrix &gMatrix, const Matrix &bMatrix) |
| | Creates a grayscale matrix out of r, g, and b matrices.
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| void | fromRGB (unsigned char *source) |
| | Creates a grayscale matrix out of an array [r0, r1, ..., g0, g1, ..., b0, b1, ...].
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| void | gaussianSmooth (const float sigma, const int filterSize=0) |
| | Applies a Gaussian filter.
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| Matrix | getRectSubPix (float centerx, float centery, int width, int height) const |
| | Returns a patch around the central point using bilinear interpolation.
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| void | halfSizeImage (Matrix &result) const |
| | Downsamples image to half of its size (result will be in result)
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| void | inv3 () |
| | Inverts a 3x3 matrix.
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| | Matrix () |
| | Default constructor.
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| | Matrix (const int width, const int height) |
| | Constructor.
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| | Matrix (const Matrix ©From) |
| | Copy constructor.
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| | Matrix (const int width, const int height, const float value) |
| | Constructor with implicit filling.
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| float | norm2 () const |
| | Returns the squared norm (i.e. sum of squared values)
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| float & | operator() (const int ax, const int ay) const |
| | Gives full access to matrix values.
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| Matrix & | operator*= (const float value) |
| | Multiplication with a scalar.
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| Matrix & | operator+= (const float value) |
| | Adds a constant to the matrix.
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| Matrix & | operator= (const float value) |
| | Fills the matrix with the value value (equivalent to fill())
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| Matrix & | operator= (const Matrix ©From) |
| | Copies the matrix copyFrom to this matrix (size of matrix might change)
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| void | rescale (int newWidth, int newHeight) |
| | Scales the matrix (includes upsampling and downsampling)
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| void | scharrDerivativeX (Matrix &result) const |
| | Applies 3x3 Scharr filter in x direction (result will be in result)
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| void | scharrDerivativeY (Matrix &result) const |
| | Applies 3x3 Scharr filter in y direction (result will be in result)
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| void | setSize (int width, int height) |
| | Changes the size of the matrix, data will be lost.
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| int | size () const |
| | Returns the size (width*height) of the matrix.
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| void | sobelDerivativeX (Matrix &result) const |
| | Applies 3x3 Sobel filter in x direction (result will be in result)
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| void | sobelDerivativeY (Matrix &result) const |
| | Applies 3x3 Sobel filter in y direction (result will be in result)
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| void | upsample (int newWidth, int newHeight) |
| | Upsamples the matrix.
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| void | upsampleBilinear (int newWidth, int newHeight) |
| | Upsamples the matrix using bilinear interpolation.
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| void | writeToPGM (const char *filename) const |
| | Saves the matrix as a picture in pgm-Format.
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| int | xSize () const |
| | Returns the width of the matrix.
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| int | ySize () const |
| | Returns the height of the matrix.
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| virtual | ~Matrix () |
| | Destructor.
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Static Public Member Functions |
| static Matrix | createWarpMatrix (const float &angle, const float &scale) |
| | Creates a warp matrix for scaling / roatating.
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Protected Attributes |
| float * | ivData |
| int | ivHeight |
| int | ivWidth |
datastructure for images (greyscale or single color)
Definition at line 76 of file Matrix.h.
