DnnInvokeBlobFromImage Method (IInputArray, Double, Size, MCvScalar, Boolean, Boolean, DepthType) |
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Creates 4-dimensional blob from image. Optionally resizes and crops image from center, subtract mean values, scales values by scalefactor, swap Blue and Red channels.
Namespace:
Emgu.CV.Dnn
Assembly:
Emgu.CV.World (in Emgu.CV.World.dll) Version: 4.1.0.3408 (4.1.0.3408)
Syntaxpublic static Mat BlobFromImage(
IInputArray image,
double scaleFactor = 1,
Size size = null,
MCvScalar mean = null,
bool swapRB = false,
bool crop = false,
DepthType ddepth = DepthType.Cv32F
)
Public Shared Function BlobFromImage (
image As IInputArray,
Optional scaleFactor As Double = 1,
Optional size As Size = Nothing,
Optional mean As MCvScalar = Nothing,
Optional swapRB As Boolean = false,
Optional crop As Boolean = false,
Optional ddepth As DepthType = DepthType.Cv32F
) As Mat
public:
static Mat^ BlobFromImage(
IInputArray^ image,
double scaleFactor = 1,
Size size = nullptr,
MCvScalar mean = nullptr,
bool swapRB = false,
bool crop = false,
DepthType ddepth = DepthType::Cv32F
)
static member BlobFromImage :
image : IInputArray *
?scaleFactor : float *
?size : Size *
?mean : MCvScalar *
?swapRB : bool *
?crop : bool *
?ddepth : DepthType
(* Defaults:
let _scaleFactor = defaultArg scaleFactor 1
let _size = defaultArg size null
let _mean = defaultArg mean null
let _swapRB = defaultArg swapRB false
let _crop = defaultArg crop false
let _ddepth = defaultArg ddepth DepthType.Cv32F
*)
-> Mat
Parameters
- image
- Type: Emgu.CVIInputArray
Input image (with 1- or 3-channels). - scaleFactor (Optional)
- Type: SystemDouble
Multiplier for image values. - size (Optional)
- Type: System.DrawingSize
Spatial size for output image - mean (Optional)
- Type: Emgu.CV.StructureMCvScalar
Scalar with mean values which are subtracted from channels. Values are intended to be in (mean-R, mean-G, mean-B) order if image has BGR ordering and swapRB is true. - swapRB (Optional)
- Type: SystemBoolean
Flag which indicates that swap first and last channels in 3-channel image is necessary. - crop (Optional)
- Type: SystemBoolean
Flag which indicates whether image will be cropped after resize or not - ddepth (Optional)
- Type: Emgu.CV.CvEnumDepthType
Depth of output blob. Choose CV_32F or CV_8U.
Return Value
Type:
Mat4-dimensional Mat with NCHW dimensions order.
See Also