ImageWrapper

Functions for managing ImageWrapper objects. More...

Functions
VL_SDK_API vlImageWrapper_t *VL_CALLINGCONVENTION	vlNew_ImageWrapper (vlImageFormat imageFormat)
	Creates a new Image object and returns a pointer to it. More...
VL_SDK_API void VL_CALLINGCONVENTION	vlDelete_ImageWrapper (vlImageWrapper_t *imageWrapper)
	Deletes an ImageWrapper object. More...
VL_SDK_API unsigned int VL_CALLINGCONVENTION	vlImageWrapper_GetFormat (vlImageWrapper_t *imageWrapper)
	Returns the internal type of the image. More...
VL_SDK_API unsigned int VL_CALLINGCONVENTION	vlImageWrapper_GetBytesPerPixel (vlImageWrapper_t *imageWrapper)
	Returns the number of bytes per pixel. More...
VL_SDK_API unsigned int VL_CALLINGCONVENTION	vlImageWrapper_GetWidth (vlImageWrapper_t *imageWrapper)
	Returns the width of the image. More...
VL_SDK_API unsigned int VL_CALLINGCONVENTION	vlImageWrapper_GetHeight (vlImageWrapper_t *imageWrapper)
	Returns the height of the image. More...
VL_SDK_API bool VL_CALLINGCONVENTION	vlImageWrapper_CopyToBuffer (vlImageWrapper_t *imageWrapper, unsigned char buffer[], unsigned int bufferSize)
	Copies the VisionLib image into the given buffer. More...
VL_SDK_API bool VL_CALLINGCONVENTION	vlImageWrapper_CopyFromBuffer (vlImageWrapper_t *imageWrapper, const unsigned char buffer[], unsigned int width, unsigned int height)
	Copies the given buffer into the VisionLib image. More...
VL_SDK_API bool VL_CALLINGCONVENTION	vlImageWrapper_CopyFromBufferWithFormat (vlImageWrapper_t *imageWrapper, const unsigned char buffer[], unsigned int width, unsigned int height, vlImageFormat imageFormat)
	Copies the given an formated buffer into the VisionLib image. More...

Detailed Description

Functions for managing ImageWrapper objects.

The ImageWrapper is a wrapper for an Image object.

Function Documentation

vlDelete_ImageWrapper()

VL_SDK_API void VL_CALLINGCONVENTION vlDelete_ImageWrapper

(

vlImageWrapper_t *

imageWrapper

)

Deletes an ImageWrapper object.

Call this function if you used the ::vlDataSetWrapper_GetImage function to acquire the object and you are now done using it.

Parameters

imageWrapper

Pointer to an ImageWrapper object.

vlImageWrapper_CopyFromBuffer()

VL_SDK_API bool VL_CALLINGCONVENTION vlImageWrapper_CopyFromBuffer	(	vlImageWrapper_t *	imageWrapper,
		const unsigned char	buffer[],
		unsigned int	width,
		unsigned int	height
	)

Copies the given buffer into the VisionLib image.

The VisionLib image will be resized according to the width and height parameter.

Please make sure, that the data stored in the buffer has the same format as the image. The image format can be acquired using the vlImageWrapper_GetFormat function.

Parameters

imageWrapper	Pointer to an ImageWrapper object.
buffer	Buffer with the raw image data.
width	New width of the image.
height	New height of the image.

Returns

true, on success; false otherwise.

vlImageWrapper_CopyFromBufferWithFormat()

VL_SDK_API bool VL_CALLINGCONVENTION vlImageWrapper_CopyFromBufferWithFormat	(	vlImageWrapper_t *	imageWrapper,
		const unsigned char	buffer[],
		unsigned int	width,
		unsigned int	height,
		vlImageFormat	imageFormat
	)

Copies the given an formated buffer into the VisionLib image.

The VisionLib image will be resized according to the width and height and format parameter.

The image will be converted into internally into a RGBA format.

Parameters

imageWrapper	Pointer to an ImageWrapper object.
buffer	Buffer with the raw image data.
width	New width of the image.
height	New height of the image.
imageFormat	The format of the image.

Returns

true, on success; false otherwise.

vlImageWrapper_CopyToBuffer()

VL_SDK_API bool VL_CALLINGCONVENTION vlImageWrapper_CopyToBuffer	(	vlImageWrapper_t *	imageWrapper,
		unsigned char	buffer[],
		unsigned int	bufferSize
	)

Copies the VisionLib image into the given buffer.

Please make sure, that the buffer is large enough for storing the whole image date (width * height * bytesPerPixel). The number of bytes per pixel an be acquired using the vlImageWrapper_GetBytesPerPixel function.

Parameters

imageWrapper	Pointer to an ImageWrapper object.
buffer	Buffer with width * height * bytesPerPixel bytes of memory.
bufferSize	Size of the buffer.

Returns

true, on success; false otherwise.

vlImageWrapper_GetBytesPerPixel()

VL_SDK_API unsigned int VL_CALLINGCONVENTION vlImageWrapper_GetBytesPerPixel

(

vlImageWrapper_t *

imageWrapper

)

Returns the number of bytes per pixel.

Parameters

imageWrapper

Pointer to an ImageWrapper object.

Returns

The number of bytes per pixel.

vlImageWrapper_GetFormat()

VL_SDK_API unsigned int VL_CALLINGCONVENTION vlImageWrapper_GetFormat

(

vlImageWrapper_t *

imageWrapper

)

Returns the internal type of the image.

Parameters

imageWrapper

Pointer to an ImageWrapper object.

Returns

Internal type of the image. The value can be cast into a vlImageFormat enumeration.

vlImageWrapper_GetHeight()

VL_SDK_API unsigned int VL_CALLINGCONVENTION vlImageWrapper_GetHeight

(

vlImageWrapper_t *

imageWrapper

)

Returns the height of the image.

Parameters

imageWrapper

Pointer to an ImageWrapper object.

Returns

The height in pixels.

vlImageWrapper_GetWidth()

VL_SDK_API unsigned int VL_CALLINGCONVENTION vlImageWrapper_GetWidth

(

vlImageWrapper_t *

imageWrapper

)

Returns the width of the image.

Parameters

imageWrapper

Pointer to an ImageWrapper object.

Returns

The width in pixels.

vlNew_ImageWrapper()

VL_SDK_API vlImageWrapper_t* VL_CALLINGCONVENTION vlNew_ImageWrapper

(

vlImageFormat

imageFormat

)

Creates a new Image object and returns a pointer to it.

This pointer must be released using vlDelete_ImageWrapper.

Parameters

imageFormat

The format of the image to create.

Returns

A pointer to the new ImageData.