opencv

package
v0.0.0-...-033205d Latest Latest
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 Go to latest Published: Jan 7, 2016 License: BSD-3-Clause Imports: 6 Imported by: 0

Documentation

Overview

Bindings for Intel's OpenCV computer vision library.

Index

Constants

View Source 
const (
	/* Select random initial centers in each attempt. */
	KMEANS_RANDOM_CENTERS = 0

	/* Use kmeans++ center initialization by Arthur and Vassilvitskii [Arthur2007]. */
	KMEANS_PP_CENTERS = 2
)
View Source 
const (
	CV_BGR2GRAY  = C.CV_BGR2GRAY
	CV_BGR2BGRA  = C.CV_BGR2BGRA
	CV_RGBA2BGRA = C.CV_RGBA2BGRA

	CV_BLUR_NO_SCALE = C.CV_BLUR_NO_SCALE
	CV_BLUR          = C.CV_BLUR
	CV_GAUSSIAN      = C.CV_GAUSSIAN
	CV_MEDIAN        = C.CV_MEDIAN
	CV_BILATERAL     = C.CV_BILATERAL

	CV_8U  = C.CV_8U
	CV_8S  = C.CV_8S
	CV_16U = C.CV_16U
	CV_16S = C.CV_16S
	CV_32S = C.CV_32S
	CV_32F = C.CV_32F
	CV_64F = C.CV_64F
)
View Source 
const (
	CV_INPAINT_NS    = C.CV_INPAINT_NS
	CV_INPAINT_TELEA = C.CV_INPAINT_TELEA
)
View Source 
const (
	CV_FONT_HERSHEY_SIMPLEX        = int(C.CV_FONT_HERSHEY_SIMPLEX)
	CV_FONT_HERSHEY_PLAIN          = int(C.CV_FONT_HERSHEY_PLAIN)
	CV_FONT_HERSHEY_DUPLEX         = int(C.CV_FONT_HERSHEY_DUPLEX)
	CV_FONT_HERSHEY_COMPLEX        = int(C.CV_FONT_HERSHEY_COMPLEX)
	CV_FONT_HERSHEY_TRIPLEX        = int(C.CV_FONT_HERSHEY_TRIPLEX)
	CV_FONT_HERSHEY_COMPLEX_SMALL  = int(C.CV_FONT_HERSHEY_COMPLEX_SMALL)
	CV_FONT_HERSHEY_SCRIPT_SIMPLEX = int(C.CV_FONT_HERSHEY_SCRIPT_SIMPLEX)
	CV_FONT_HERSHEY_SCRIPT_COMPLEX = int(C.CV_FONT_HERSHEY_SCRIPT_COMPLEX)
	CV_FONT_ITALIC                 = int(C.CV_FONT_ITALIC)
)
View Source 
const (
	CV_MAJOR_VERSION    = int(C.CV_MAJOR_VERSION)
	CV_MINOR_VERSION    = int(C.CV_MINOR_VERSION)
	CV_SUBMINOR_VERSION = int(C.CV_SUBMINOR_VERSION)
)
View Source 
const (
	CV_StsOk                     = C.CV_StsOk
	CV_StsBackTrace              = C.CV_StsBackTrace
	CV_StsError                  = C.CV_StsError
	CV_StsInternal               = C.CV_StsInternal
	CV_StsNoMem                  = C.CV_StsNoMem
	CV_StsBadArg                 = C.CV_StsBadArg
	CV_StsBadFunc                = C.CV_StsBadFunc
	CV_StsNoConv                 = C.CV_StsNoConv
	CV_StsAutoTrace              = C.CV_StsAutoTrace
	CV_HeaderIsNull              = C.CV_HeaderIsNull
	CV_BadImageSize              = C.CV_BadImageSize
	CV_BadOffset                 = C.CV_BadOffset
	CV_BadDataPtr                = C.CV_BadDataPtr
	CV_BadStep                   = C.CV_BadStep
	CV_BadModelOrChSeq           = C.CV_BadModelOrChSeq
	CV_BadNumChannels            = C.CV_BadNumChannels
	CV_BadNumChannel1U           = C.CV_BadNumChannel1U
	CV_BadDepth                  = C.CV_BadDepth
	CV_BadAlphaChannel           = C.CV_BadAlphaChannel
	CV_BadOrder                  = C.CV_BadOrder
	CV_BadOrigin                 = C.CV_BadOrigin
	CV_BadAlign                  = C.CV_BadAlign
	CV_BadCallBack               = C.CV_BadCallBack
	CV_BadTileSize               = C.CV_BadTileSize
	CV_BadCOI                    = C.CV_BadCOI
	CV_BadROISize                = C.CV_BadROISize
	CV_MaskIsTiled               = C.CV_MaskIsTiled
	CV_StsNullPtr                = C.CV_StsNullPtr
	CV_StsVecLengthErr           = C.CV_StsVecLengthErr
	CV_StsFilterStructContentErr = C.CV_StsFilterStructContentErr
	CV_StsKernelStructContentErr = C.CV_StsKernelStructContentErr
	CV_StsFilterOffsetErr        = C.CV_StsFilterOffsetErr
	CV_StsBadSize                = C.CV_StsBadSize
	CV_StsDivByZero              = C.CV_StsDivByZero
	CV_StsInplaceNotSupported    = C.CV_StsInplaceNotSupported
	CV_StsObjectNotFound         = C.CV_StsObjectNotFound
	CV_StsUnmatchedFormats       = C.CV_StsUnmatchedFormats
	CV_StsBadFlag                = C.CV_StsBadFlag
	CV_StsBadPoint               = C.CV_StsBadPoint
	CV_StsBadMask                = C.CV_StsBadMask
	CV_StsUnmatchedSizes         = C.CV_StsUnmatchedSizes
	CV_StsUnsupportedFormat      = C.CV_StsUnsupportedFormat
	CV_StsOutOfRange             = C.CV_StsOutOfRange
	CV_StsParseError             = C.CV_StsParseError
	CV_StsNotImplemented         = C.CV_StsNotImplemented
	CV_StsBadMemBlock            = C.CV_StsBadMemBlock
	CV_StsAssert                 = C.CV_StsAssert
)
View Source 
const (
	CV_PI   = 3.1415926535897932384626433832795
	CV_LOG2 = 0.69314718055994530941723212145818
)
View Source 
const (
	IPL_DEPTH_SIGN = C.IPL_DEPTH_SIGN

	IPL_DEPTH_1U  = C.IPL_DEPTH_1U
	IPL_DEPTH_8U  = C.IPL_DEPTH_8U
	IPL_DEPTH_16U = C.IPL_DEPTH_16U
	IPL_DEPTH_32F = C.IPL_DEPTH_32F

	IPL_DEPTH_8S  = C.IPL_DEPTH_8S
	IPL_DEPTH_16S = C.IPL_DEPTH_16S
	IPL_DEPTH_32S = C.IPL_DEPTH_32S

	IPL_DATA_ORDER_PIXEL = C.IPL_DATA_ORDER_PIXEL
	IPL_DATA_ORDER_PLANE = C.IPL_DATA_ORDER_PLANE

	IPL_ORIGIN_TL = C.IPL_ORIGIN_TL
	IPL_ORIGIN_BL = C.IPL_ORIGIN_BL

	IPL_ALIGN_4BYTES  = C.IPL_ALIGN_4BYTES
	IPL_ALIGN_8BYTES  = C.IPL_ALIGN_8BYTES
	IPL_ALIGN_16BYTES = C.IPL_ALIGN_16BYTES
	IPL_ALIGN_32BYTES = C.IPL_ALIGN_32BYTES

	IPL_ALIGN_DWORD = C.IPL_ALIGN_DWORD
	IPL_ALIGN_QWORD = C.IPL_ALIGN_QWORD

	IPL_BORDER_CONSTANT  = C.IPL_BORDER_CONSTANT
	IPL_BORDER_REPLICATE = C.IPL_BORDER_REPLICATE
	IPL_BORDER_REFLECT   = C.IPL_BORDER_REFLECT
	IPL_BORDER_WRAP      = C.IPL_BORDER_WRAP
)

* The following definitions (until #endif) * is an extract from IPL headers. * Copyright (c) 1995 Intel Corporation.

View Source 
const (
	IPL_IMAGE_HEADER = C.IPL_IMAGE_HEADER
	IPL_IMAGE_DATA   = C.IPL_IMAGE_DATA
	IPL_IMAGE_ROI    = C.IPL_IMAGE_ROI
)
View Source 
const (
	CV_MATND_MAGIC_VAL = C.CV_MATND_MAGIC_VAL
	CV_TYPE_NAME_MATND = C.CV_TYPE_NAME_MATND

	CV_MAX_DIM      = C.CV_MAX_DIM
	CV_MAX_DIM_HEAP = C.CV_MAX_DIM_HEAP
)
View Source 
const (
	CV_SPARSE_MAT_MAGIC_VAL = C.CV_SPARSE_MAT_MAGIC_VAL
	CV_TYPE_NAME_SPARSE_MAT = C.CV_TYPE_NAME_SPARSE_MAT
)
View Source 
const (
	CV_HIST_MAGIC_VAL    = C.CV_HIST_MAGIC_VAL
	CV_HIST_UNIFORM_FLAG = C.CV_HIST_UNIFORM_FLAG

	/* indicates whether bin ranges are set already or not */
	CV_HIST_RANGES_FLAG = C.CV_HIST_RANGES_FLAG

	CV_HIST_ARRAY  = C.CV_HIST_ARRAY
	CV_HIST_SPARSE = C.CV_HIST_SPARSE
	CV_HIST_TREE   = C.CV_HIST_TREE

	/* should be used as a parameter only,
	   it turns to CV_HIST_UNIFORM_FLAG of hist->type */
	CV_HIST_UNIFORM = C.CV_HIST_UNIFORM
)
View Source 
const (
	CV_TERMCRIT_ITER   = C.CV_TERMCRIT_ITER
	CV_TERMCRIT_NUMBER = C.CV_TERMCRIT_NUMBER
	CV_TERMCRIT_EPS    = C.CV_TERMCRIT_EPS
)
View Source 
const (
	CV_RETR_EXTERNAL = C.CV_RETR_EXTERNAL
	CV_RETR_LIST     = C.CV_RETR_LIST
	CV_RETR_CCOMP    = C.CV_RETR_CCOMP
	CV_RETR_TREE     = C.CV_RETR_TREE

	CV_CHAIN_APPROX_NONE      = C.CV_CHAIN_APPROX_NONE
	CV_CHAIN_APPROX_SIMPLE    = C.CV_CHAIN_APPROX_SIMPLE
	CV_CHAIN_APPROX_TC89_L1   = C.CV_CHAIN_APPROX_TC89_L1
	CV_CHAIN_APPROX_TC89_KCOS = C.CV_CHAIN_APPROX_TC89_KCOS
)
View Source 
const (
	CV_STORAGE_READ         = C.CV_STORAGE_READ
	CV_STORAGE_WRITE        = C.CV_STORAGE_WRITE
	CV_STORAGE_WRITE_TEXT   = C.CV_STORAGE_WRITE_TEXT
	CV_STORAGE_WRITE_BINARY = C.CV_STORAGE_WRITE_BINARY
	CV_STORAGE_APPEND       = C.CV_STORAGE_APPEND
)

Storage flags:

View Source 
const (
	CV_WND_PROP_FULLSCREEN = int(C.CV_WND_PROP_FULLSCREEN)
	CV_WND_PROP_AUTOSIZE   = int(C.CV_WND_PROP_AUTOSIZE)
	CV_WINDOW_NORMAL       = int(C.CV_WINDOW_NORMAL)
	CV_WINDOW_FULLSCREEN   = int(C.CV_WINDOW_FULLSCREEN)
)

--------- YV ---------

View Source 
const (
	CV_EVENT_MOUSEMOVE     = int(C.CV_EVENT_MOUSEMOVE)
	CV_EVENT_LBUTTONDOWN   = int(C.CV_EVENT_LBUTTONDOWN)
	CV_EVENT_RBUTTONDOWN   = int(C.CV_EVENT_RBUTTONDOWN)
	CV_EVENT_MBUTTONDOWN   = int(C.CV_EVENT_MBUTTONDOWN)
	CV_EVENT_LBUTTONUP     = int(C.CV_EVENT_LBUTTONUP)
	CV_EVENT_RBUTTONUP     = int(C.CV_EVENT_RBUTTONUP)
	CV_EVENT_MBUTTONUP     = int(C.CV_EVENT_MBUTTONUP)
	CV_EVENT_LBUTTONDBLCLK = int(C.CV_EVENT_LBUTTONDBLCLK)
	CV_EVENT_RBUTTONDBLCLK = int(C.CV_EVENT_RBUTTONDBLCLK)
	CV_EVENT_MBUTTONDBLCLK = int(C.CV_EVENT_MBUTTONDBLCLK)

	CV_EVENT_FLAG_LBUTTON  = int(C.CV_EVENT_FLAG_LBUTTON)
	CV_EVENT_FLAG_RBUTTON  = int(C.CV_EVENT_FLAG_RBUTTON)
	CV_EVENT_FLAG_MBUTTON  = int(C.CV_EVENT_FLAG_MBUTTON)
	CV_EVENT_FLAG_CTRLKEY  = int(C.CV_EVENT_FLAG_CTRLKEY)
	CV_EVENT_FLAG_SHIFTKEY = int(C.CV_EVENT_FLAG_SHIFTKEY)
	CV_EVENT_FLAG_ALTKEY   = int(C.CV_EVENT_FLAG_ALTKEY)
)
View Source 
const (
	/* 8bit, color or not */
	CV_LOAD_IMAGE_UNCHANGED = int(C.CV_LOAD_IMAGE_UNCHANGED)
	/* 8bit, gray */
	CV_LOAD_IMAGE_GRAYSCALE = int(C.CV_LOAD_IMAGE_GRAYSCALE)
	/* ?, color */
	CV_LOAD_IMAGE_COLOR = int(C.CV_LOAD_IMAGE_COLOR)
	/* any depth, ? */
	CV_LOAD_IMAGE_ANYDEPTH = int(C.CV_LOAD_IMAGE_ANYDEPTH)
	/* ?, any color */
	CV_LOAD_IMAGE_ANYCOLOR = int(C.CV_LOAD_IMAGE_ANYCOLOR)
)
View Source 
const (
	CV_IMWRITE_JPEG_QUALITY    = int(C.CV_IMWRITE_JPEG_QUALITY)
	CV_IMWRITE_PNG_COMPRESSION = int(C.CV_IMWRITE_PNG_COMPRESSION)
	CV_IMWRITE_PXM_BINARY      = int(C.CV_IMWRITE_PXM_BINARY)
)
View Source 
const (
	CV_CVTIMG_FLIP    = int(C.CV_CVTIMG_FLIP)
	CV_CVTIMG_SWAP_RB = int(C.CV_CVTIMG_SWAP_RB)
)
View Source 
const (
	CV_CAP_ANY = int(C.CV_CAP_ANY) // autodetect

	CV_CAP_MIL = int(C.CV_CAP_MIL) // MIL proprietary drivers

	CV_CAP_VFW  = int(C.CV_CAP_VFW) // platform native
	CV_CAP_V4L  = int(C.CV_CAP_V4L)
	CV_CAP_V4L2 = int(C.CV_CAP_V4L2)

	CV_CAP_FIREWARE = int(C.CV_CAP_FIREWARE) // IEEE 1394 drivers
	CV_CAP_FIREWIRE = int(C.CV_CAP_FIREWIRE)
	CV_CAP_IEEE1394 = int(C.CV_CAP_IEEE1394)
	CV_CAP_DC1394   = int(C.CV_CAP_DC1394)
	CV_CAP_CMU1394  = int(C.CV_CAP_CMU1394)

	CV_CAP_STEREO = int(C.CV_CAP_STEREO) // TYZX proprietary drivers
	CV_CAP_TYZX   = int(C.CV_CAP_TYZX)
	CV_TYZX_LEFT  = int(C.CV_TYZX_LEFT)
	CV_TYZX_RIGHT = int(C.CV_TYZX_RIGHT)
	CV_TYZX_COLOR = int(C.CV_TYZX_COLOR)
	CV_TYZX_Z     = int(C.CV_TYZX_Z)

	CV_CAP_QT = int(C.CV_CAP_QT) // QuickTime

	CV_CAP_UNICAP = int(C.CV_CAP_UNICAP) // Unicap drivers

	CV_CAP_DSHOW = int(C.CV_CAP_DSHOW) // DirectShow (via videoInput)

	CV_CAP_PVAPI = int(C.CV_CAP_PVAPI) // PvAPI, Prosilica GigE SDK
)
View Source 
const (
	CV_CAP_PROP_POS_MSEC      = int(C.CV_CAP_PROP_POS_MSEC)
	CV_CAP_PROP_POS_FRAMES    = int(C.CV_CAP_PROP_POS_FRAMES)
	CV_CAP_PROP_POS_AVI_RATIO = int(C.CV_CAP_PROP_POS_AVI_RATIO)
	CV_CAP_PROP_FRAME_WIDTH   = int(C.CV_CAP_PROP_FRAME_WIDTH)
	CV_CAP_PROP_FRAME_HEIGHT  = int(C.CV_CAP_PROP_FRAME_HEIGHT)
	CV_CAP_PROP_FPS           = int(C.CV_CAP_PROP_FPS)
	CV_CAP_PROP_FOURCC        = int(C.CV_CAP_PROP_FOURCC)
	CV_CAP_PROP_FRAME_COUNT   = int(C.CV_CAP_PROP_FRAME_COUNT)
	CV_CAP_PROP_FORMAT        = int(C.CV_CAP_PROP_FORMAT)
	CV_CAP_PROP_MODE          = int(C.CV_CAP_PROP_MODE)
	CV_CAP_PROP_BRIGHTNESS    = int(C.CV_CAP_PROP_BRIGHTNESS)
	CV_CAP_PROP_CONTRAST      = int(C.CV_CAP_PROP_CONTRAST)
	CV_CAP_PROP_SATURATION    = int(C.CV_CAP_PROP_SATURATION)
	CV_CAP_PROP_HUE           = int(C.CV_CAP_PROP_HUE)
	CV_CAP_PROP_GAIN          = int(C.CV_CAP_PROP_GAIN)
	CV_CAP_PROP_EXPOSURE      = int(C.CV_CAP_PROP_EXPOSURE)
	CV_CAP_PROP_CONVERT_RGB   = int(C.CV_CAP_PROP_CONVERT_RGB)
	// CV_CAP_PROP_WHITE_BALANCE = int(C.CV_CAP_PROP_WHITE_BALANCE)
	CV_CAP_PROP_RECTIFICATION = int(C.CV_CAP_PROP_RECTIFICATION)
)
View Source 
const (
	CV_INTER_NN       = int(C.CV_INTER_NN)
	CV_INTER_LINEAR   = int(C.CV_INTER_LINEAR)
	CV_INTER_CUBIC    = int(C.CV_INTER_CUBIC)
	CV_INTER_AREA     = int(C.CV_INTER_AREA)
	CV_INTER_LANCZOS4 = int(C.CV_INTER_LANCZOS4)
)
View Source 
const (
	CV_AUTOSTEP = C.CV_AUTOSTEP
)

mat step

View Source 
const (
	/* Open Codec Selection Dialog (Windows only) */
	CV_FOURCC_PROMPT = int(C.CV_FOURCC_PROMPT)
)
View Source 
const (
	CV_POLY_APPROX_DP = C.CV_POLY_APPROX_DP
)

For use in ApproxPoly

View Source 
const (
	CV_WHOLE_SEQ_END_INDEX = C.CV_WHOLE_SEQ_END_INDEX
)
View Source 
const (
	CV_WINDOW_AUTOSIZE = C.CV_WINDOW_AUTOSIZE
)
View Source 
const (
	IPL_DEPTH_64F = int(C.IPL_DEPTH_64F)
)

Variables

View Source 
var (
	IPL_IMAGE_MAGIC_VAL = C.IPL_IMAGE_MAGIC_VAL_()
	CV_TYPE_NAME_IMAGE  = C.CV_TYPE_NAME_IMAGE_()
)

extra border mode

Functions

func Alloc 

func Alloc(size int) unsafe.Pointer

func ArcLength 

func ArcLength(curve *Seq, slice Slice, is_closed bool) float64

cvArcLength(const void* curve, CvSlice slice=CV_WHOLE_SEQ, int is_closed=-1 )

func CV_ARE_TYPE_EQ 

func CV_ARE_TYPE_EQ() bool

func CV_HIST_HAS_RANGES 

func CV_HIST_HAS_RANGES() bool

func CV_IS_HIST 

func CV_IS_HIST() bool

func CV_IS_IMAGE 

func CV_IS_IMAGE(img unsafe.Pointer) bool

func CV_IS_IMAGE_HDR 

func CV_IS_IMAGE_HDR(img unsafe.Pointer) bool

func CV_IS_MASK_ARR 

func CV_IS_MASK_ARR() bool

func CV_IS_MAT 

func CV_IS_MAT(mat interface{}) bool

func CV_IS_MAT_HDR 

func CV_IS_MAT_HDR(mat interface{}) bool

func CV_IS_SPARSE_HIST 

func CV_IS_SPARSE_HIST() bool

func CV_IS_UNIFORM_HIST 

func CV_IS_UNIFORM_HIST() bool

func Canny 

func Canny(image, edges *IplImage, threshold1, threshold2 float64, aperture_size int)

Runs canny edge detector

func Ceil 

func Ceil(value float64) int

func Circle 

func Circle(image *IplImage, pt1 Point, radius int, color Scalar, thickness, line_type, shift int)

func ContourArea 

func ContourArea(contour *Seq, slice Slice, oriented int) float64

double cvContourArea(const CvArr* contour, CvSlice slice=CV_WHOLE_SEQ, int oriented=0 )

func ContourPerimeter 

func ContourPerimeter(curve *Seq) float64

func ConvertImage 

func ConvertImage(src, dst unsafe.Pointer, flags int)

utility function: convert one image to another with optional vertical flip

func ConvertScale 

func ConvertScale(a, b *IplImage, scale, shift float64)

ConvertScale converts one image to another with optional linear transformation.

func Copy 

func Copy(src, dst, mask *IplImage)

Copies source array to destination array

func CvtColor 

func CvtColor(src, dst *IplImage, code int)

Converts input array pixels from one color space to another

func DecRefData 

func DecRefData(arr Arr)

Decrements CvMat data reference counter and deallocates the data if 

it reaches 0

func DestroyAllWindows 

func DestroyAllWindows()

destroy window and all the trackers associated with it

func DrawContours 

func DrawContours(image *IplImage, contours *Seq, externalColor, holeColor Scalar, maxLevel, thickness, lineType int, offset Point)

cvDrawContours(CvArr* img, CvSeq* contour, CvScalar externalColor, CvScalar holeColor, int maxLevel, int thickness=1, int lineType=8

func FOURCC 

func FOURCC(c1, c2, c3, c4 int8) uint32

Prototype for CV_FOURCC so that swig can generate wrapper without mixing up the define

func Floor 

func Floor(value float64) int

func Free 

func Free(p unsafe.Pointer)

func GetSizeHeight 

func GetSizeHeight(img *IplImage) int

func GetSizeWidth 

func GetSizeWidth(img *IplImage) int

Returns width and height of array in elements

func IncRefData 

func IncRefData(arr Arr)

Increments CvMat data reference counter

func Inpaint 

func Inpaint(src, inpaint_mask, dst *IplImage, inpaintRange float64, flags int)

Inpaints the selected region in the image

func IplDepth 

func IplDepth(type_ int) int

func IsInf 

func IsInf(value float64) int

func IsNaN 

func IsNaN(value float64) int

func Line 

func Line(image *IplImage, pt1, pt2 Point, color Scalar, thickness, line_type, shift int)
Draws 4-connected, 8-connected or antialiased line segment connecting two points

color Scalar,

func Not 

func Not(src, dst *IplImage)

dst(idx) = ~src(idx)

func RawDataToScalar 

func RawDataToScalar(data unsafe.Pointer, type_ int, scalar *Scalar)

func Rectangle 

func Rectangle(image *IplImage, pt1, pt2 Point, color Scalar, thickness, line_type, shift int)

func Round 

func Round(value float64) int

func SaveImage 

func SaveImage(filename string, image *IplImage, params int) int

save image to file

func ScalarToRawData 

func ScalarToRawData(scalar *Scalar, data unsafe.Pointer, type_, extend_to_12 int)

low-level scalar <-> raw data conversion functions

func Smooth 

func Smooth(src, dst *IplImage, smoothtype,
	param1, param2 int, param3, param4 float64)

Smoothes array (removes noise)

func Sobel 

func Sobel(src, dst *IplImage, xorder, yorder, aperture_size int)
Calculates the first, second, third, or mixed image derivatives using an

* extended Sobel operator.

func StartWindowThread 

func StartWindowThread() int

func WaitKey 

func WaitKey(delay int) int

wait for key event infinitely (delay<=0) or for "delay" milliseconds

func Zero 

func Zero(img *IplImage)

Clears all the array elements (sets them to 0)

Types

type Arr 

type Arr unsafe.Pointer

type AttrList 

type AttrList C.CvAttrList

type Box2D 

type Box2D struct {
	// contains filtered or unexported fields
}

func FitEllipse2 

func FitEllipse2(points unsafe.Pointer) Box2D

points can be either CvSeq* or CvMat*

func (*Box2D) Angle 

func (box *Box2D) Angle() float32

func (*Box2D) Center 

func (box *Box2D) Center() Point2D32f

func (*Box2D) Size 

func (box *Box2D) Size() Size2D32f

type Capture 

type Capture C.CvCapture

"black box" capture structure

func NewCameraCapture 

func NewCameraCapture(index int) *Capture

start capturing frames from camera: index = camera_index + domain_offset (CV_CAP_*)

func NewFileCapture 

func NewFileCapture(filename string) *Capture

start capturing frames from video file

func (*Capture) GetDomain 

func (capture *Capture) GetDomain() int

Return the type of the capturer (eg, CV_CAP_V4W, CV_CAP_UNICAP), which is unknown if created with CV_CAP_ANY

func (*Capture) GetProperty 

func (capture *Capture) GetProperty(property_id int) float64

retrieve or set capture properties

func (*Capture) GrabFrame 

func (capture *Capture) GrabFrame() bool
grab a frame, return 1 on success, 0 on fail.

this function is thought to be fast

func (*Capture) QueryFrame 

func (capture *Capture) QueryFrame() *IplImage

Just a combination of cvGrabFrame and cvRetrieveFrame 

!!!DO NOT RELEASE or MODIFY the retrieved frame!!!

func (*Capture) Release 

func (capture *Capture) Release()

stop capturing/reading and free resources

func (*Capture) RetrieveFrame 

func (capture *Capture) RetrieveFrame(streamIdx int) *IplImage
get the frame grabbed with cvGrabFrame(..)

This function may apply some frame processing like frame decompression, flipping etc. !!!DO NOT RELEASE or MODIFY the retrieved frame!!!

func (*Capture) SetProperty 

func (capture *Capture) SetProperty(property_id int, value float64) int

type Chain 

type Chain C.CvChain

type Contour 

type Contour C.CvContour

type FileStorage 

type FileStorage C.CvFileStorage

"black box" file storage

type Font 

type Font struct {
	// contains filtered or unexported fields
}

func InitFont 

func InitFont(fontFace int, hscale, vscale, shear float32, thickness, lineType int) *Font

void cvInitFont(CvFont* font, int font_face, double hscale, double vscale, double shear=0, int thickness=1, int line_type=8 )

func (*Font) PutText 

func (this *Font) PutText(image *IplImage, text string, pt1 Point, color Scalar)

void cvPutText(CvArr* img, const char* text, CvPoint org, const CvFont* font, CvScalar color)

type Graph 

type Graph C.CvGraph

type GraphEdge 

type GraphEdge C.CvGraphEdge

type GraphVtx 

type GraphVtx C.CvGraphVtx

type GraphVtx2D 

type GraphVtx2D C.CvGraphVtx2D

type HaarCascade 

type HaarCascade struct {
	// contains filtered or unexported fields
}

***************************************************************************************\ * Face eyes&mouth tracking * \***************************************************************************************

func LoadHaarClassifierCascade 

func LoadHaarClassifierCascade(haar string) *HaarCascade

func (*HaarCascade) DetectObjects 

func (this *HaarCascade) DetectObjects(image *IplImage) []*Rect

func (*HaarCascade) Release 

func (this *HaarCascade) Release()

type HistType 

type HistType C.CvHistType

type Histogram 

type Histogram C.CvHistogram

type IplConvKernel 

type IplConvKernel C.IplConvKernel

type IplConvKernelFP 

type IplConvKernelFP C.IplConvKernelFP

type IplImage 

type IplImage C.IplImage

func CreateImage 

func CreateImage(w, h, depth, channels int) *IplImage

Creates IPL image (header and data)

func CreateImageHeader 

func CreateImageHeader(w, h, depth, channels int) *IplImage

Allocates and initializes IplImage header

func Crop 

func Crop(src *IplImage, x, y, width, height int) *IplImage

func DecodeImage 

func DecodeImage(buf unsafe.Pointer, iscolor int) *IplImage

decode image stored in the buffer

func DecodeImageMem 

func DecodeImageMem(data []byte) *IplImage

DecodeImageMem decodes an image from an in memory byte buffer.

func FromImage 

func FromImage(img image.Image) *IplImage

FromImage converts a go image.Image to an opencv.IplImage.

func FromImageUnsafe 

func FromImageUnsafe(img *image.RGBA) *IplImage
FromImageUnsafe create an opencv.IplImage that shares the buffer with the

go image.RGBA image. All changes made from opencv might affect go!

func LoadImage 

func LoadImage(filename string, iscolor_ ...int) *IplImage
load image from file

iscolor can be a combination of above flags where CV_LOAD_IMAGE_UNCHANGED overrides the other flags using CV_LOAD_IMAGE_ANYCOLOR alone is equivalent to CV_LOAD_IMAGE_UNCHANGED unless CV_LOAD_IMAGE_ANYDEPTH is specified images are converted to 8bit

func Resize 

func Resize(src *IplImage, width, height, interpolation int) *IplImage

func (*IplImage) Avg 

func (src *IplImage) Avg(mask *IplImage) Scalar

***************************************************************************************\ * Array Statistics * \*************************************************************************************** CvScalar cvAvg(const CvArr* arr, const CvArr* mask=NULL )

func (*IplImage) Channels 

func (img *IplImage) Channels() int

normal fields

func (*IplImage) Clone 

func (img *IplImage) Clone() *IplImage

Creates a copy of IPL image (widthStep may differ)

func (*IplImage) Depth 

func (img *IplImage) Depth() int

func (*IplImage) EqualizeHist 

func (src *IplImage) EqualizeHist(dst *IplImage)

cvEqualizeHist(const CvArr* src, CvArr* dst)

func (*IplImage) FindContours 

func (image *IplImage) FindContours(mode, method int, offset Point) *Seq

Returns a Seq of countours in an image, detected according to the parameters. 

Caller must Release() the Seq returned

func (*IplImage) Get1D 

func (img *IplImage) Get1D(x int) Scalar

Get1D return a specific element from a 1-dimensional matrix.

func (*IplImage) Get2D 

func (img *IplImage) Get2D(x, y int) Scalar

Get2D return a specific element from a 2-dimensional matrix.

func (*IplImage) Get3D 

func (img *IplImage) Get3D(x, y, z int) Scalar

Get3D return a specific element from a 3-dimensional matrix.

func (*IplImage) GetCOI 

func (img *IplImage) GetCOI() int

Retrieves image Channel Of Interest

func (*IplImage) GetMat 

func (img *IplImage) GetMat() *Mat

GetMat returns the matrix header for an image.

func (*IplImage) GetROI 

func (img *IplImage) GetROI() Rect

Retrieves image ROI

func (*IplImage) Height 

func (img *IplImage) Height() int

func (*IplImage) ImageData 

func (img *IplImage) ImageData() unsafe.Pointer

func (*IplImage) ImageSize 

func (img *IplImage) ImageSize() int

func (*IplImage) InitHeader 

func (img *IplImage) InitHeader(w, h, depth, channels, origin, align int)

Inializes IplImage header

func (*IplImage) Origin 

func (img *IplImage) Origin() int

func (*IplImage) Release 

func (img *IplImage) Release()

Releases IPL image header and data

func (*IplImage) ReleaseHeader 

func (img *IplImage) ReleaseHeader()

Releases (i.e. deallocates) IPL image header

func (*IplImage) ResetROI 

func (img *IplImage) ResetROI()

Resets image ROI and COI

func (*IplImage) Reshape 

func (img *IplImage) Reshape(channels, rows, _type int) *Mat

Reshape changes shape of the image without copying data. A value of `0` means that channels or rows remain unchanged.

func (*IplImage) Set 

func (img *IplImage) Set(value Scalar)

Sets every element of an array to a given value.

func (*IplImage) Set1D 

func (img *IplImage) Set1D(x int, value Scalar)

Set1D sets a particular element in the image

func (*IplImage) Set2D 

func (img *IplImage) Set2D(x, y int, value Scalar)

Set2D sets a particular element in the image

func (*IplImage) Set3D 

func (img *IplImage) Set3D(x, y, z int, value Scalar)

Set3D sets a particular element in the image

func (*IplImage) SetCOI 

func (img *IplImage) SetCOI(coi int)

Sets a Channel Of Interest (only a few functions support COI) - 

use cvCopy to extract the selected channel and/or put it back

func (*IplImage) SetData 

func (img *IplImage) SetData(data unsafe.Pointer, step int)

SetData assigns user data to the image header

func (*IplImage) SetROI 

func (img *IplImage) SetROI(rect Rect)

Sets image ROI (region of interest) (COI is not changed)

func (*IplImage) ToImage 

func (img *IplImage) ToImage() image.Image

ToImage converts a opencv.IplImage to an go image.Image

func (*IplImage) Width 

func (img *IplImage) Width() int

func (*IplImage) WidthStep 

func (img *IplImage) WidthStep() int

func (*IplImage) Zero 

func (img *IplImage) Zero()

type IplROI 

type IplROI C.IplROI

func (*IplROI) Coi 

func (roi *IplROI) Coi() int

func (*IplROI) Height 

func (roi *IplROI) Height() int

func (*IplROI) Init 

func (roi *IplROI) Init(coi, xOffset, yOffset, width, height int)

func (*IplROI) ToRect 

func (roi *IplROI) ToRect() Rect

func (*IplROI) Width 

func (roi *IplROI) Width() int

func (*IplROI) XOffset 

func (roi *IplROI) XOffset() int

func (*IplROI) YOffset 

func (roi *IplROI) YOffset() int

type LineIterator 

type LineIterator C.CvLineIterator

type Mat 

type Mat C.CvMat

func CreateMat 

func CreateMat(rows, cols, type_ int) *Mat

Allocates and initializes CvMat header and allocates data

func CreateMatHeader 

func CreateMatHeader(rows, cols, type_ int) *Mat

Allocates and initalizes CvMat header

func DecodeImageM 

func DecodeImageM(buf unsafe.Pointer, iscolor int) *Mat

func EncodeImage 

func EncodeImage(ext string, image unsafe.Pointer, params int) *Mat

encode image and store the result as a byte vector (single-row 8uC1 matrix)

func GetCol 

func GetCol(arr Arr, submat *Mat, col int) *Mat

func GetCols 

func GetCols(arr Arr, submat *Mat, start_col, end_col int) *Mat

Selects column span of the input array: arr(:,start_col:end_col) 

(end_col is not included into the span)

func GetDiag 

func GetDiag(arr Arr, submat *Mat, diag int) *Mat

Select a diagonal of the input array. 

(diag = 0 means the main diagonal, >0 means a diagonal above the main one,
<0 - below the main one).
The diagonal will be represented as a column (nx1 matrix).

func GetRow 

func GetRow(arr Arr, submat *Mat, row int) *Mat

func GetRows 

func GetRows(arr Arr, submat *Mat, start_row, end_row, delta_row int) *Mat

Selects row span of the input array: arr(start_row:delta_row:end_row,:) 

(end_row is not included into the span).

func GetSubRect 

func GetSubRect(arr Arr, submat *Mat, rect Rect) *Mat

Makes a new matrix from <rect> subrectangle of input array. 

No data is copied

func KMeans 

func KMeans(data *Mat, k int, termcrit TermCriteria, attempts int, rng RNG, flags int) (labels, centers *Mat)

KMeans finds centers of k clusters in data and groups input samples around the clusters. It returns a matrix that stores the cluster indices for every sample, and a matrix that stores the cluster centers.

func LoadImageM 

func LoadImageM(filename string, iscolor int) *Mat

func (*Mat) Clone 

func (mat *Mat) Clone() *Mat

Creates an exact copy of the input matrix (except, may be, step value)

func (*Mat) Cols 

func (mat *Mat) Cols() int

func (*Mat) Get 

func (m *Mat) Get(row, col int) float64

func (*Mat) Get1D 

func (m *Mat) Get1D(x int) Scalar

Get1D return a specific element from a 1-dimensional matrix.

func (*Mat) Get2D 

func (m *Mat) Get2D(x, y int) Scalar

Get2D return a specific element from a 2-dimensional matrix.

func (*Mat) Get3D 

func (m *Mat) Get3D(x, y, z int) Scalar

Get3D return a specific element from a 3-dimensional matrix.

func (*Mat) GetData 

func (mat *Mat) GetData() []byte

func (*Mat) GetImage 

func (m *Mat) GetImage(channels int) *IplImage

GetImage returns the image header for the matrix.

func (*Mat) Init 

func (m *Mat) Init(rows, cols int, type_ int, data unsafe.Pointer)

func (*Mat) InitHeader 

func (mat *Mat) InitHeader(rows, cols, type_ int, data unsafe.Pointer, step int)

Initializes CvMat header

func (*Mat) Release 

func (mat *Mat) Release()

Releases CvMat header and deallocates matrix data 

(reference counting is used for data)

func (*Mat) Reshape 

func (m *Mat) Reshape(channels, rows int) *Mat

Reshape changes shape of the matrix without copying data. A value of `0` means that channels or rows remain unchanged.

func (*Mat) Rows 

func (mat *Mat) Rows() int

func (*Mat) Set 

func (m *Mat) Set(row, col int, value float64)

func (*Mat) Set1D 

func (m *Mat) Set1D(x int, value Scalar)

Set1D sets a particular element in them matrix

func (*Mat) Set2D 

func (m *Mat) Set2D(x, y int, value Scalar)

Set2D sets a particular element in them matrix

func (*Mat) Set3D 

func (m *Mat) Set3D(x, y, z int, value Scalar)

Set3D sets a particular element in them matrix

func (*Mat) SetData 

func (mat *Mat) SetData(data unsafe.Pointer, step int)

SetData assigns user data to the matrix header.

func (*Mat) Step 

func (mat *Mat) Step() int

func (*Mat) Type 

func (mat *Mat) Type() int

func (*Mat) Zero 

func (mat *Mat) Zero()

type MatND 

type MatND C.CvMatND

func CreateMatND 

func CreateMatND(sizes []int, type_ int) *MatND

Allocates and initializes CvMatND header and allocates data

func CreateMatNDHeader 

func CreateMatNDHeader(sizes []int, type_ int) *MatND

Allocates and initializes CvMatND header

func (*MatND) Clone 

func (mat *MatND) Clone() *MatND

Creates a copy of CvMatND (except, may be, steps)

func (*MatND) Dims 

func (m *MatND) Dims() int

func (*MatND) InitMatNDHeader 

func (mat *MatND) InitMatNDHeader(sizes []int, type_ int, data unsafe.Pointer)

Initializes preallocated CvMatND header

func (*MatND) Release 

func (mat *MatND) Release()

Releases CvMatND

func (*MatND) Type 

func (m *MatND) Type() int

type MemBlock 

type MemBlock C.CvMemBlock

type MemStorage 

type MemStorage C.CvMemStorage

type MemStoragePos 

type MemStoragePos C.CvMemStoragePos

type MouseFunc 

type MouseFunc interface{}

mouse callback

type MouseFuncA 

type MouseFuncA func(event, x, y, flags int)

type MouseFuncB 

type MouseFuncB func(event, x, y, flags int, param ...interface{})

type Point 

type Point struct {
	X int
	Y int
}

type Point2D32f 

type Point2D32f struct {
	X float32
	Y float32
}

type Point2D64f 

type Point2D64f struct {
	X float64
	Y float64
}

type Point3D32f 

type Point3D32f struct {
	X float32
	Y float32
	Z float32
}

type Point3D64f 

type Point3D64f struct {
	X float64
	Y float64
	Z float64
}

type RNG 

type RNG C.CvRNG

func NewRNG 

func NewRNG(seed int64) RNG

func (*RNG) RandInt 

func (rng *RNG) RandInt() uint32

func (*RNG) RandReal 

func (rng *RNG) RandReal() float64

type Rect 

type Rect C.CvRect

func (*Rect) Height 

func (r *Rect) Height() int

func (*Rect) Init 

func (r *Rect) Init(x, y, w, h int)

func (*Rect) ToROI 

func (r *Rect) ToROI(coi int) IplROI

func (*Rect) Width 

func (r *Rect) Width() int

func (*Rect) X 

func (r *Rect) X() int

func (*Rect) Y 

func (r *Rect) Y() int

type Scalar 

type Scalar C.CvScalar

func NewScalar 

func NewScalar(b, g, r, a float64) Scalar

func ScalarAll 

func ScalarAll(val0 float64) Scalar

func (Scalar) Val 

func (s Scalar) Val() [4]float64

Val returns an array with the scalars values.

type Seq 

type Seq C.CvSeq

func ApproxPoly 

func ApproxPoly(src *Seq, header_size int, storage *MemStorage, method int, eps float64, recursive int) *Seq

CvSeq* cvApproxPoly(const void* src_seq, int header_size, CvMemStorage* storage, int method, double eps, int recursive=0 )

func (*Seq) HNext 

func (seq *Seq) HNext() *Seq

func (*Seq) Release 

func (seq *Seq) Release()

***************************************************************************************\ * Dynamic data structures * \***************************************************************************************

func (*Seq) Storage 

func (seq *Seq) Storage() *MemStorage

func (*Seq) Total 

func (seq *Seq) Total() int

func (*Seq) VNext 

func (seq *Seq) VNext() *Seq

type SeqBlock 

type SeqBlock C.CvSeqBlock

type SeqReader 

type SeqReader C.CvSeqReader

type SeqWriter 

type SeqWriter C.CvSeqWriter

type Set 

type Set C.CvSet

type Size 

type Size struct {
	Width  int
	Height int
}

func GetSize 

func GetSize(img *IplImage) Size

type Size2D32f 

type Size2D32f struct {
	Width  float32
	Height float32
}

type Slice 

type Slice C.CvSlice

func WholeSeq 

func WholeSeq() Slice

Equivalent to the C constant CV_WHOLE_SEQ

type SparseMat 

type SparseMat C.CvSparseMat

func CreateSparseMat 

func CreateSparseMat(sizes []int, type_ int) *SparseMat

Allocates and initializes CvSparseMat header and allocates data

func (*SparseMat) Clone 

func (mat *SparseMat) Clone() *SparseMat

Creates a copy of CvSparseMat (except, may be, zero items)

func (*SparseMat) Dims 

func (m *SparseMat) Dims() int

func (*SparseMat) InitSparseMatIterator 

func (mat *SparseMat) InitSparseMatIterator(iter *SparseMatIterator) *SparseNode

Initializes sparse array iterator 

(returns the first node or NULL if the array is empty)

func (*SparseMat) Release 

func (mat *SparseMat) Release()

Releases CvSparseMat

func (*SparseMat) Type 

func (m *SparseMat) Type() int

type SparseMatIterator 

type SparseMatIterator C.CvSparseMatIterator

func (*SparseMatIterator) CurIdx 

func (node *SparseMatIterator) CurIdx() int

func (*SparseMatIterator) Mat 

func (node *SparseMatIterator) Mat() *SparseMat

func (*SparseMatIterator) Next 

func (iter *SparseMatIterator) Next() *SparseNode

returns next sparse array node (or NULL if there is no more nodes)

func (*SparseMatIterator) Node 

func (node *SparseMatIterator) Node() *SparseNode

type SparseNode 

type SparseNode C.CvSparseNode

func (*SparseNode) HashVal 

func (node *SparseNode) HashVal() uint32

func (*SparseNode) Next 

func (node *SparseNode) Next() *SparseNode

type TermCriteria 

type TermCriteria C.CvTermCriteria

func (*TermCriteria) Epsilon 

func (x *TermCriteria) Epsilon() float64

func (*TermCriteria) Init 

func (x *TermCriteria) Init(type_, max_iter int, epsilon float64)

func (*TermCriteria) MaxIter 

func (x *TermCriteria) MaxIter() int

func (*TermCriteria) Type 

func (x *TermCriteria) Type() int

type TrackbarFunc 

type TrackbarFunc interface{}

trackbar callback

type TrackbarFuncA 

type TrackbarFuncA func(pos int)

type TrackbarFuncB 

type TrackbarFuncB func(pos int, param ...interface{})

type VideoWriter 

type VideoWriter C.CvVideoWriter

"black box" video file writer structure

func NewVideoWriter 

func NewVideoWriter(filename string,
	fourcc int, fps float32,
	frame_width, frame_height,
	is_color int) *VideoWriter

initialize video file writer

func (*VideoWriter) Release 

func (writer *VideoWriter) Release()

close video file writer

func (*VideoWriter) WriteFrame 

func (writer *VideoWriter) WriteFrame(image *IplImage) int

write frame to video file

type Window 

type Window struct {
	// contains filtered or unexported fields
}

named window

func NewWindow 

func NewWindow(name string, flags ...int) *Window

create window

func (*Window) CreateTrackbar 

func (win *Window) CreateTrackbar(name string,
	value, count int,
	on_changed TrackbarFunc, param ...interface{}) bool

create trackbar and display it on top of given window, set callback

func (*Window) Destroy 

func (win *Window) Destroy()

destroy window and all the trackers associated with it

func (*Window) GetHandle 

func (win *Window) GetHandle() unsafe.Pointer

get native window handle (HWND in case of Win32 and Widget in case of X Window)

func (*Window) GetProperty 

func (win *Window) GetProperty(prop_id int) float64

func (*Window) GetTrackbarPos 

func (win *Window) GetTrackbarPos(name string) (value, max int)

retrieve or set trackbar position

func (*Window) GetWindowName 

func (win *Window) GetWindowName() string

get name of highgui window given its native handle

func (*Window) Move 

func (win *Window) Move(x, y int)

func (*Window) Resize 

func (win *Window) Resize(width, height int)

resize/move window

func (*Window) SetMouseCallback 

func (win *Window) SetMouseCallback(on_mouse MouseFunc, param ...interface{})

assign callback for mouse events

func (*Window) SetProperty 

func (win *Window) SetProperty(prop_id int, value float64)

Set and Get Property of the window

func (*Window) SetTrackbarPos 

func (win *Window) SetTrackbarPos(name string, pos int)

func (*Window) ShowImage 

func (win *Window) ShowImage(image *IplImage)

display image within window (highgui windows remember their content)

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