FingerImage.fromRawBuffer Method¶

Definition¶

Creates an Image from the specified raw data buffer.

Python

@staticmethod
from_raw_buffer(pixels: bytearray, width: int, height: int, stride: int, src_pixel_format: PixelFormat, dst_pixel_format: PixelFormat) -> FingerImage

Parameters

pixels bytearray

in A buffer that contains image pixels.

width int

in The width, in pixels, of the image.

height int

in The height, in pixels, of the image.

stride int

in The stride, in pixels, of the image.

src_pixel_format PixelFormat

in The pixel format of the input image.

dst_pixel_format PixelFormat

in The pixel format into which to convert the input image.

Returns

FingerImage

The newly created finger image.

Exceptions

FingerException

An error has occurred during Finger Library execution.

Dart

static FingerImage fromRawBuffer(Uint8List? pixels, int width, int height, int stride, PixelFormat srcPixelFormat, PixelFormat dstPixelFormat)

Parameters

pixels Uint8List

in A buffer that contains image pixels.

width int

in The width, in pixels, of the image.

height int

in The height, in pixels, of the image.

stride int

in The stride, in pixels, of the image.

srcPixelFormat PixelFormat

in The pixel format of the input image.

dstPixelFormat PixelFormat

in The pixel format into which to convert the input image.

Returns

FingerImage

The newly created finger image.

Exceptions

FingerException

An error has occurred during Finger Library execution.

public static FingerImage FromRawBuffer(byte[] pixels, int width, int height, int stride, PixelFormat srcPixelFormat, PixelFormat dstPixelFormat)

Parameters

pixels byte[]

in A buffer that contains image pixels.

width int

in The width, in pixels, of the image.

height int

in The height, in pixels, of the image.

stride int

in The stride, in pixels, of the image.

srcPixelFormat PixelFormat

in The pixel format of the input image.

dstPixelFormat PixelFormat

in The pixel format into which to convert the input image.

Returns

FingerImage

The newly created finger image.

Exceptions

FingerException

An error has occurred during Finger Library execution.

Java

public static FingerImage fromRawBuffer(byte[] pixels, int width, int height, int stride, PixelFormat srcPixelFormat, PixelFormat dstPixelFormat) throws FingerException

Parameters

pixels byte[]

in A buffer that contains image pixels.

width int

in The width, in pixels, of the image.

height int

in The height, in pixels, of the image.

stride int

in The stride, in pixels, of the image.

srcPixelFormat PixelFormat

in The pixel format of the input image.

dstPixelFormat PixelFormat

in The pixel format into which to convert the input image.

Returns

FingerImage

The newly created finger image.

Exceptions

FingerException

An error has occurred during Finger Library execution.

Swift

public static func fromRawBuffer(pixels: [UInt8], width: Int32, height: Int32, stride: Int32, srcPixelFormat: PixelFormat, dstPixelFormat: PixelFormat) throws -> FingerImage

Parameters

pixels [UInt8]

in A buffer that contains image pixels.

width Int32

in The width, in pixels, of the image.

height Int32

in The height, in pixels, of the image.

stride Int32

in The stride, in pixels, of the image.

srcPixelFormat PixelFormat

in The pixel format of the input image.

dstPixelFormat PixelFormat

in The pixel format into which to convert the input image.

Returns

FingerImage

The newly created finger image.

Exceptions

FingerException

An error has occurred during Finger Library execution.

int id3FingerImage_FromRawBuffer (
    ID3_FINGER_IMAGE hFingerImage,
    unsigned char * pixels,
    int pixelsSize,
    int width,
    int height,
    int stride,
    id3FingerPixelFormat eSrcPixelFormat,
    id3FingerPixelFormat eDstPixelFormat)

Parameters

hFingerImage ID3_FINGER_IMAGE

in Handle to the FingerImage object.

pixels unsigned char *

in A buffer that contains image pixels.

pixelsSize int

in Size of the ‘pixels’ buffer.

width int

in The width, in pixels, of the image.

height int

in The height, in pixels, of the image.

stride int

in The stride, in pixels, of the image.

eSrcPixelFormat id3FingerPixelFormat

in The pixel format of the input image.

eDstPixelFormat id3FingerPixelFormat

in The pixel format into which to convert the input image.

Returns

int

An error code.

See id3FingerError file for the list of possible error codes.