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added path from go image to opencv image and back.

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This commit is contained in:
Thomas Kastner 2014-08-20 15:53:27 +02:00
parent 5d538b4b5e
commit d2eca0237c
3 changed files with 18 additions and 10 deletions
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16
opencv/cxcore.go
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@ -69,6 +69,10 @@ func (img *IplImage) Release() {
C.cvReleaseImage(&img_c)
}
func (img *IplImage) Zero() {
C.cvSetZero(unsafe.Pointer(img))
}
/* Creates a copy of IPL image (widthStep may differ) */
func (img *IplImage) Clone() *IplImage {
p := C.cvCloneImage((*C.IplImage)(img))
@ -122,13 +126,13 @@ func (img *IplImage) Get1D(x int) Scalar {
/* Get2D return a specific element from a 2-dimensional matrix. */
func (img *IplImage) Get2D(x, y int) Scalar {
ret := C.cvGet2D(unsafe.Pointer(img), C.int(x), C.int(y))
ret := C.cvGet2D(unsafe.Pointer(img), C.int(y), C.int(x))
return Scalar(ret)
}
/* Get3D return a specific element from a 3-dimensional matrix. */
func (img *IplImage) Get3D(x, y, z int) Scalar {
ret := C.cvGet3D(unsafe.Pointer(img), C.int(x), C.int(y), C.int(z))
ret := C.cvGet3D(unsafe.Pointer(img), C.int(z), C.int(y), C.int(x))
return Scalar(ret)
}
@ -139,12 +143,12 @@ func (img *IplImage) Set1D(x int, value Scalar) {
/* Set2D sets a particular element in the image */
func (img *IplImage) Set2D(x, y int, value Scalar) {
C.cvSet2D(unsafe.Pointer(img), C.int(x), C.int(y), (C.CvScalar)(value))
C.cvSet2D(unsafe.Pointer(img), C.int(y), C.int(x), (C.CvScalar)(value))
}
/* Set3D sets a particular element in the image */
func (img *IplImage) Set3D(x, y, z int, value Scalar) {
C.cvSet3D(unsafe.Pointer(img), C.int(x), C.int(y), C.int(z), (C.CvScalar)(value))
C.cvSet3D(unsafe.Pointer(img), C.int(z), C.int(y), C.int(x), (C.CvScalar)(value))
}
/* GetMat returns the matrix header for an image.*/
@ -217,6 +221,10 @@ func (mat *Mat) Clone() *Mat {
return (*Mat)(mat_new)
}
func (mat *Mat) Zero() {
C.cvSetZero(unsafe.Pointer(mat))
}
/*
Reshape changes shape of the matrix without copying data. A value of `0` means
that channels or rows remain unchanged.

8
opencv/goimage.go
View file

@ -11,22 +11,22 @@ func DecodeImageMem(data []byte) *IplImage {
buf := CreateMatHeader(1, len(data), CV_8U)
buf.SetData(unsafe.Pointer(&data[0]), CV_AUTOSTEP)
return DecodeImage(buf, CV_LOAD_IMAGE_UNCHANGED)
return DecodeImage(unsafe.Pointer(buf), CV_LOAD_IMAGE_UNCHANGED)
}
/* From Image converts a go image.Image to an opencv.IplImage. */
func FromImage(img image.Image) *IplImage {
b := img.Bounds()
model := color.NRGBAModel
model := color.RGBAModel
dst := CreateImage(
b.Max.Y-b.Min.Y,
b.Max.X-b.Min.X,
b.Max.Y-b.Min.Y,
IPL_DEPTH_8U, 4)
for y := b.Min.Y; y < b.Max.Y; y++ {
for x := b.Min.X; x < b.Max.X; x++ {
px := img.At(x, y)
c := model.Convert(px).(color.NRGBA)
c := model.Convert(px).(color.RGBA)
value := NewScalar(float64(c.B), float64(c.G), float64(c.R), float64(c.A))
dst.Set2D(x, y, value)

4
opencv/highgui.go
View file

@ -399,11 +399,11 @@ func SaveImage(filename string, image *IplImage, params int) int {
}
/* decode image stored in the buffer */
func DecodeImage(buf *Mat, iscolor int) *IplImage {
func DecodeImage(buf unsafe.Pointer, iscolor int) *IplImage {
rv := C.cvDecodeImage((*C.CvMat)(buf), C.int(iscolor))
return (*IplImage)(rv)
}
func DecodeImageM(buf *Mat, iscolor int) *Mat {
func DecodeImageM(buf unsafe.Pointer, iscolor int) *Mat {
rv := C.cvDecodeImageM((*C.CvMat)(buf), C.int(iscolor))
return (*Mat)(rv)
}