►ArrayFire Functions by Category | |
►Computer Vision | A list of computer vision algorithms |
►Feature descriptors | ORB feature descriptor |
gloh | SIFT feature detector and GLOH descriptor extractor |
orb | ORB Feature descriptor |
sift | SIFT feature detector and descriptor extractor |
►Feature detectors | FAST feature detector |
DoG | Difference of Gaussians |
fast | FAST feature detector |
harris | Harris corner detector |
susan | SUSAN corner detector |
►Feature matchers | Feature matchers |
hammingMatcher | Hamming Matcher |
nearestNeighbour | Nearest Neighbour |
►Template matching | |
matchTemplate | Template Matching |
►Functions to create and modify Arrays | Array constructors, random number generation, transpose, indexing, etc |
►Assignment & Indexing operation on arrays | Access sub regions of an array object |
assign | Copy and write values in the locations specified by the sequences |
col/cols | Gets a reference of a col in a 2D af::array |
index | Lookup values on array based on sequences |
operator() | Gets a reference to a set of elements |
operator(star)= | Multiplies and assigns the value(s) of val to the elements of the af::array |
operator+= | Adds and assigns the value(s) of val to the elements of the af::array |
operator-= | Subtracts and assigns the value(s) of val to the elements of the af::array |
operator/= | Divides and assigns the value(s) of val to the elements of the af::array |
operator= | Assignes the value(s) of val to the elements of the af::array |
row/rows | Gets a reference of a row in a 2D af::array |
slice/slices | Gets a reference of a matrix in a 3D af::array |
util | Utility functions to create objects of type af_index_t |
Constructors of array class | Construct an array object |
►Functions to create arrays. | Constant, random, range, etc |
constant | Create a array from a scalar input value |
diag | Extract diagonal from a matrix when extract is set to true. Create a diagonal marix from input array when extract is set to false |
getSeed | Get the seed for random number generator |
identity | Create an identity array with diagonal values 1 |
iota | Create an sequence [0, dims.elements() - 1] and modify to specified dimensions dims and then tile it according to tile_dims |
lower | Create a lower triangular marix from input array |
randn | Create a random array sampled from a normal distribution |
randu | Create a random array sampled from uniform distribution |
range | Creates an array with [0, n] values along the seq_dim which is tiled across other dimensions |
setSeed | Set the seed for random number generator |
upper | Create a upper triangular marix from input array |
►Helper functions for arrays | Iszero, isInf, isNan, etc |
cast | |
isNan | |
isinf | |
iszero | |
►Managing devices in ArrayFire | Getting device pointer, allocating and freeing memory |
alloc | Allocate memory using the ArrayFire memory manager |
allocHost | Allocate memory on host |
array::device<T> | Get the device pointer from the array and lock the buffer in memory manager |
deviceInfo | Gets the information about device and platform as strings |
deviceMemInfo | Memory manager related functions |
free | Free device memory allocated by ArrayFire's memory manager |
freeHost | Free memory allocated on host internally by ArrayFire |
freePinned | Free pinned memory allocated by ArrayFire's memory manager |
getDevice | Get the current device ID |
getDeviceCount | Gets the number of compute devices on the system |
info | Display ArrayFire and device info |
infoString | Get af::info() as a string |
isDoubleAvailable | Check if double precision support is available for specified device |
pinned | Allocate pinned memory using ArrayFire's memory manager |
setDevice | Change current device to specified device |
sync | Blocks until all operations on device are finished |
Methods of array class | Get information about the array object |
►Move and Reorder array content | Reorder, transpose, flip, join, tile, etc |
flat | Flatten the input to a single dimension |
flip | Flip the input along sepcified dimension |
join | Join up to 4 arrays along specified dimension |
moddims | Modify the input dimensions without changing the data order |
reorder | Reorder the input by in the specified order |
replace | Replace elements of an array based on an conditional array |
select | Select elements from two arrays based on an conditional array |
shift | Circular shift slong specified dimensions |
tile | Tile the input array along specified dimensions |
transpose | Matrix Transpose |
►Functions to work with internal array layout | Functions to work with arrayfire's internal data structure |
createStridedArray | Create an array with specified strides and offset |
getOffset | Get Offset of the underlying data |
getStrides | Get strides of underlying data |
isLinear | Check if all elements in array are contiguous |
isOwner | Check if underlying data is owned by the current array |
►Image Processing | Image filtering, morphing and transformations |
►Colorspace conversions | RGB to gray, gray to RGB, RGB to HSV, etc |
colorspace | |
gray2rgb | |
hsv2rgb | |
rgb2gray | |
rgb2hsv | |
rgb2ycbcr | |
ycbcr2rgb | |
►Connected Components & Labeling | Regions |
regions | Find blobs in given image |
►Filters | Bilateral, sobel, mean shift, median / min / max filters etc |
SAT | Summed Area Tables |
bilateral | Bilateral Filter |
maxfilt | Find maximum value from a window |
meanshift | Meanshift Filter |
medfilt | Median Filter |
minfilt | Find minimum value from a window |
sobel | Sobel Operators |
►Histograms | Image and data histograms |
histequal | Histogram equalization of input image |
histogram | Histogram of input data |
►Image transformations | Rotate, skew, etc |
resize | |
rotate | |
scale | |
skew | |
transform | |
transformcoordinates | |
translate | |
►Morphological Operations | Erode, dilate, etc |
dilate | Dilation(morphological operator) for images |
dilate3d | Dilation(morphological operator) for volumes |
erode | Erosion(morphological operator) for images |
erode3d | Erosion(morphological operator) for volumes |
►Utility Functions | LoadImage, saveImage, gaussianKernel |
gaussiankernel | Creates a Gaussian Kernel |
►Wrapping and unwrapping image windows | Wrap, unwrap, etc |
unwrap | |
wrap | |
►Input and Output functions | Functions to read and write data |
►Reading and writing arrays | Printing data to screen / files |
readArray | Load an array from a file |
saveArray | Save an array to a binary file |
►Reading and writing images | Reading and writing images |
deleteImageMem | |
isImageIoAvailable | |
loadImage | |
loadImageMem | |
saveImage | |
saveImageMem | |
►Interface Functions | Backend specific functions |
CUDA specific functions | Accessing ArrayFire's stream, and native device id with other CUDA code |
OpenCL specific functions | Accessing ArrayFire's context, queue, and share data with other OpenCL code |
►Linear Algebra | Matrix multiply, solve, decompositions |
►BLAS operations | Matrix multiply, dot product, etc |
dot | Calculate the dot product of a vector |
matmul | Matrix multiplication using array |
transpose | Matrix Transpose |
►LAPACK Helper functions | |
isLAPACKAvailable | Returns true is ArrayFire is compiled with LAPACK support |
►Linear solve and least squares | Solve, solveLU, etc |
solve | Solve a system of equations |
solveLU | Solve a system of equations |
►Matrix factorizations and decompositions | LU, QR, Cholesky etc |
cholesky | Perform Cholesky decomposition |
lu | Perform LU decomposition |
qr | Perform QR decomposition |
svd | Perform Singular Value Decomposition |
►Matrix operations | Inverse, det, rank, norm etc |
det | Find the determinant of the input matrix |
inverse | Invert a matrix |
norm | Find the norm of the input matrix |
rank | Find the rank of the input matrix |
►Mathematical functions | Functions from standard math library |
►Arithmetic operations | +, -, *, /, >>, << |
add | |
bitshiftl | |
bitshiftr | |
div | |
mul | |
sub | |
►Complex operations | Real, imag, conjugate etc |
complex | |
conjg | |
imag | |
real | |
►Exponential and logarithmic functions | Exp, log, expm1, log1p, etc |
cbrt | |
erf | |
erfc | |
exp | |
expm1 | |
factorial | |
lgamma | |
log | |
log10 | |
log1p | |
pow | |
root | |
sqrt | |
tgamma | |
►Hyperbolic functions | Sinh, cosh, tanh, etc |
acosh | |
asinh | |
atanh | |
cosh | |
sinh | |
tanh | |
►Logical operations | &&, ||, |, &, <, >, <=, >=, ==, ! |
and | |
bitand | |
bitor | |
bitxor | |
eq | |
ge | |
gt | |
le | |
lt | |
neg | |
neq | |
not | |
or | |
►Numeric functions | Floor, round, min, max, etc |
abs | |
arg | |
ceil | |
floor | |
hypot | |
max | |
min | |
mod | |
rem | |
round | |
sign | |
trunc | |
►Trigonometric functions | Sin, cos, tan, etc |
acos | |
asin | |
atan/atan2 | |
cos | |
sin | |
tan/tan2 | |
►Signal Processing | Convolutions, FFTs, filters |
►Convolutions | 1D, 2D and 3D convolutions |
convolve | Convolution Integral for any dimensional data |
convolve1 | Convolution Integral for one dimensional data |
convolve2 | Convolution Integral for two dimensional data |
convolve3 | Convolution Integral for three dimensional data |
fftConvolve | Convolution using Fast Fourier Transform |
fftConvolve2 | 2D Convolution using Fast Fourier Transform |
fftConvolve3 | 3D Convolution using Fast Fourier Transform |
►Fast Fourier Transforms | 1D, 2D and 3D forward, inverse FFTs |
fft | Fast Fourier Transform |
fft2 | Fast Fourier Transform |
fft3 | Fast Fourier Transform |
fftC2R | Complex to Real Fast Fourier Transform |
fftR2C | Real to Complex Fast Fourier Transform |
ifft | Fast Fourier Transform |
ifft2 | Fast Fourier Transform |
ifft3 | Fast Fourier Transform |
►Filter | Fir, iir, etc |
fir | This function implements a Finite Impulse Filter |
iir | This function implements a Infinite Impulse Filter |
►Interpolation and approximation | 1D and 2D interpolation |
approx1 | |
approx2 | |
►Statistics | A list of Statistics functions |
►Basic statistics functions | Mean, median, variance, etc |
corrcoef | |
cov | |
mean | |
median | |
stdev | |
var | |
►Unified API Functions | Functions to set current backend and utilities |
getActiveBackend | Get's the backend enum for the active backend |
getAvailableBackends | Returns an integer indicating the backends loaded successfully |
getBackendCount | Get the number of backends whose libraries were successfully loaded |
getBackendId | Get's the backend enum for an array |
getDeviceId | Get's the id of the device an array was created on |
setBackend | Set the current backend when using Unified backend |
►Vector Algorithms | Sum, min, max, sort, set operations, etc |
►Inclusive scan operations | Inclusive / cumulative sum, etc |
accum | |
where | |
►Numerical differentiation | Diff, gradient, etc |
diff1 | |
diff2 | |
grad | |
►Reduction operations | Sum, min, max, etc |
alltrue | |
anytrue | |
count | |
max | |
min | |
product | |
sum | |
►Set operations | Unique, union, intersect |
setintersect | |
setunion | |
setunique | |
►Sort operations | Sort, sort by key, etc |
sort | |
sortByKey | |
sortIndex | |
►Complete List of ArrayFire Functions | |
DoG | Difference of Gaussians |
SAT | Summed Area Tables |
abs | |
accum | |
acos | |
acosh | |
add | |
alloc | Allocate memory using the ArrayFire memory manager |
allocHost | Allocate memory on host |
alltrue | |
and | |
anytrue | |
approx1 | |
approx2 | |
arg | |
array::device<T> | Get the device pointer from the array and lock the buffer in memory manager |
asin | |
asinh | |
assign | Copy and write values in the locations specified by the sequences |
atan/atan2 | |
atanh | |
bilateral | Bilateral Filter |
bitand | |
bitor | |
bitshiftl | |
bitshiftr | |
bitxor | |
cast | |
cbrt | |
ceil | |
cholesky | Perform Cholesky decomposition |
col/cols | Gets a reference of a col in a 2D af::array |
colorspace | |
complex | |
conjg | |
constant | Create a array from a scalar input value |
convolve | Convolution Integral for any dimensional data |
convolve1 | Convolution Integral for one dimensional data |
convolve2 | Convolution Integral for two dimensional data |
convolve3 | Convolution Integral for three dimensional data |
corrcoef | |
cos | |
cosh | |
count | |
cov | |
deleteImageMem | |
det | Find the determinant of the input matrix |
deviceInfo | Gets the information about device and platform as strings |
deviceMemInfo | Memory manager related functions |
diag | Extract diagonal from a matrix when extract is set to true. Create a diagonal marix from input array when extract is set to false |
diff1 | |
diff2 | |
dilate | Dilation(morphological operator) for images |
dilate3d | Dilation(morphological operator) for volumes |
div | |
dot | Calculate the dot product of a vector |
eq | |
erf | |
erfc | |
erode | Erosion(morphological operator) for images |
erode3d | Erosion(morphological operator) for volumes |
exp | |
expm1 | |
factorial | |
fast | FAST feature detector |
fft | Fast Fourier Transform |
fft2 | Fast Fourier Transform |
fft3 | Fast Fourier Transform |
fftC2R | Complex to Real Fast Fourier Transform |
fftConvolve | Convolution using Fast Fourier Transform |
fftConvolve2 | 2D Convolution using Fast Fourier Transform |
fftConvolve3 | 3D Convolution using Fast Fourier Transform |
fftR2C | Real to Complex Fast Fourier Transform |
fir | This function implements a Finite Impulse Filter |
flat | Flatten the input to a single dimension |
flip | Flip the input along sepcified dimension |
floor | |
free | Free device memory allocated by ArrayFire's memory manager |
freeHost | Free memory allocated on host internally by ArrayFire |
freePinned | Free pinned memory allocated by ArrayFire's memory manager |
gaussiankernel | Creates a Gaussian Kernel |
ge | |
getActiveBackend | Get's the backend enum for the active backend |
getAvailableBackends | Returns an integer indicating the backends loaded successfully |
getBackendCount | Get the number of backends whose libraries were successfully loaded |
getBackendId | Get's the backend enum for an array |
getDevice | Get the current device ID |
getDeviceCount | Gets the number of compute devices on the system |
getDeviceId | Get's the id of the device an array was created on |
getSeed | Get the seed for random number generator |
gloh | SIFT feature detector and GLOH descriptor extractor |
grad | |
gray2rgb | |
gt | |
hammingMatcher | Hamming Matcher |
harris | Harris corner detector |
histequal | Histogram equalization of input image |
histogram | Histogram of input data |
homography | Homography Estimation |
hsv2rgb | |
hypot | |
identity | Create an identity array with diagonal values 1 |
ifft | Fast Fourier Transform |
ifft2 | Fast Fourier Transform |
ifft3 | Fast Fourier Transform |
iir | This function implements a Infinite Impulse Filter |
imag | |
index | Lookup values on array based on sequences |
info | Display ArrayFire and device info |
infoString | Get af::info() as a string |
inverse | Invert a matrix |
iota | Create an sequence [0, dims.elements() - 1] and modify to specified dimensions dims and then tile it according to tile_dims |
isDoubleAvailable | Check if double precision support is available for specified device |
isImageIoAvailable | |
isLAPACKAvailable | Returns true is ArrayFire is compiled with LAPACK support |
isNan | |
isinf | |
iszero | |
join | Join up to 4 arrays along specified dimension |
le | |
lgamma | |
loadImage | |
loadImageMem | |
log | |
log10 | |
log1p | |
lower | Create a lower triangular marix from input array |
lt | |
lu | Perform LU decomposition |
matchTemplate | Template Matching |
matmul | Matrix multiplication using array |
max | |
max | |
maxfilt | Find maximum value from a window |
mean | |
meanshift | Meanshift Filter |
medfilt | Median Filter |
median | |
min | |
min | |
minfilt | Find minimum value from a window |
mod | |
moddims | Modify the input dimensions without changing the data order |
mul | |
nearestNeighbour | Nearest Neighbour |
neg | |
neq | |
norm | Find the norm of the input matrix |
not | |
operator() | Gets a reference to a set of elements |
operator(star)= | Multiplies and assigns the value(s) of val to the elements of the af::array |
operator+= | Adds and assigns the value(s) of val to the elements of the af::array |
operator-= | Subtracts and assigns the value(s) of val to the elements of the af::array |
operator/= | Divides and assigns the value(s) of val to the elements of the af::array |
operator= | Assignes the value(s) of val to the elements of the af::array |
or | |
orb | ORB Feature descriptor |
pinned | Allocate pinned memory using ArrayFire's memory manager |
pow | |
print | Print the array to screen |
product | |
qr | Perform QR decomposition |
randn | Create a random array sampled from a normal distribution |
randu | Create a random array sampled from uniform distribution |
range | Creates an array with [0, n] values along the seq_dim which is tiled across other dimensions |
rank | Find the rank of the input matrix |
readArray | Load an array from a file |
real | |
regions | Find blobs in given image |
rem | |
reorder | Reorder the input by in the specified order |
replace | Replace elements of an array based on an conditional array |
resize | |
rgb2gray | |
rgb2hsv | |
rgb2ycbcr | |
root | |
rotate | |
round | |
row/rows | Gets a reference of a row in a 2D af::array |
saveArray | Save an array to a binary file |
saveImage | |
saveImageMem | |
scale | |
select | Select elements from two arrays based on an conditional array |
setBackend | Set the current backend when using Unified backend |
setDevice | Change current device to specified device |
setSeed | Set the seed for random number generator |
setintersect | |
setunion | |
setunique | |
shift | Circular shift slong specified dimensions |
sift | SIFT feature detector and descriptor extractor |
sign | |
sin | |
sinh | |
skew | |
slice/slices | Gets a reference of a matrix in a 3D af::array |
sobel | Sobel Operators |
solve | Solve a system of equations |
solveLU | Solve a system of equations |
sort | |
sortByKey | |
sortIndex | |
sqrt | |
stdev | |
sub | |
sum | |
susan | SUSAN corner detector |
svd | Perform Singular Value Decomposition |
sync | Blocks until all operations on device are finished |
tan/tan2 | |
tanh | |
tgamma | |
tile | Tile the input array along specified dimensions |
toString | Print the array to a string instead of the screen |
transform | |
transformcoordinates | |
translate | |
transpose | Matrix Transpose |
trunc | |
unwrap | |
upper | Create a upper triangular marix from input array |
util | Utility functions to create objects of type af_index_t |
var | |
where | |
wrap | |
ycbcr2rgb | |
►Graphics | |
Rendering Functions | Rendering functions to draw images, plots etc |
Window Functions | Window creation, modification and destruction functions |