Image Handling

Classes
struct	VuImageInfo
	Data structure describing image data. More...

Typedefs
typedef struct VuImagePixelFormatList_	VuImagePixelFormatList
	List of image pixel formats.
typedef struct VuImage_	VuImage
	Vuforia Image.
typedef struct VuImageList_	VuImageList
	Vuforia Image List.

Enumerations
enum	VuImagePixelFormat : int32_t {   VU_IMAGE_PIXEL_FORMAT_UNKNOWN = 0x1,   VU_IMAGE_PIXEL_FORMAT_RGB565 = 0x2,   VU_IMAGE_PIXEL_FORMAT_RGB888 = 0x3,   VU_IMAGE_PIXEL_FORMAT_GRAYSCALE = 0x4,   VU_IMAGE_PIXEL_FORMAT_RGBA8888 = 0x5,   VU_IMAGE_PIXEL_FORMAT_NV21 = 0x6,   VU_IMAGE_PIXEL_FORMAT_NV12 = 0x7,   VU_IMAGE_PIXEL_FORMAT_YV12 = 0x8,   VU_IMAGE_PIXEL_FORMAT_YUV420P = 0x9,   VU_IMAGE_PIXEL_FORMAT_YUYV = 0xA }
	Pixel format types supported by Vuforia. More...

Functions
VuResult	vuImagePixelFormatListCreate (VuImagePixelFormatList **list)
	Create an image pixel format list.
VuResult	vuImagePixelFormatListGetSize (const VuImagePixelFormatList *list, int32_t *listSize)
	Get number of elements in an image pixel format list.
VuResult	vuImagePixelFormatListGetElement (const VuImagePixelFormatList *list, int32_t element, VuImagePixelFormat *format)
	Get an element in an image pixel format list.
VuResult	vuImagePixelFormatListDestroy (VuImagePixelFormatList *list)
	Destroy an image pixel format list.
VuResult	vuImageGetImageInfo (const VuImage *image, VuImageInfo *imageInfo)
	Get Image data.
VuResult	vuImageAcquireReference (const VuImage *image, VuImage **imageOut)
	Acquire a new reference to the given image.
VuResult	vuImageRelease (VuImage *image)
	Release the given image.
VuResult	vuImageListCreate (VuImageList **list)
	Create an image list.
VuResult	vuImageListGetSize (const VuImageList *list, int32_t *numElements)
	Get number of elements in an image list.
VuResult	vuImageListGetElement (const VuImageList *list, int32_t element, VuImage **image)
	Get an element in an image list.
VuResult	vuImageListAppendElement (VuImageList *list, const VuImage *image)
	Append an element to an image list.
VuResult	vuImageListDestroy (VuImageList *list)
	Destroy an image list.

Detailed Description

Enumeration Type Documentation

VuImagePixelFormat

enum VuImagePixelFormat : int32_t

Pixel format types supported by Vuforia.

Enumerator
VU_IMAGE_PIXEL_FORMAT_UNKNOWN	Unknown pixel format.
VU_IMAGE_PIXEL_FORMAT_RGB565	A color pixel stored in 2 bytes using 5 bits for red, 6 bits for green and 5 bits for blue.
VU_IMAGE_PIXEL_FORMAT_RGB888	A color pixel stored in 3 bytes using 8 bits each for red, green and blue.
VU_IMAGE_PIXEL_FORMAT_GRAYSCALE	A grayscale pixel stored in one byte.
VU_IMAGE_PIXEL_FORMAT_RGBA8888	A color pixel stored in 4 bytes using 8 bits each for red, green and blue and 8 bits for alpha channel.
VU_IMAGE_PIXEL_FORMAT_NV21	YUV 4:2:0 with a plane of 8 bit Y (luma) samples followed by an interleaved plane of 8 bit, 2x2 subsampled, V/U (chroma) samples.
VU_IMAGE_PIXEL_FORMAT_NV12	YUV 4:2:0 with a plane of 8 bit Y (luma) samples followed by an interleaved plane of 8 bit, 2x2 subsampled, U/V (chroma) samples.
VU_IMAGE_PIXEL_FORMAT_YV12	YUV 4:2:0 with a plane of 8 bit Y (luma) samples followed by a plane of 8 bit, 2x2 subsampled, V (chroma) samples followed by a plane of 8 bit, 2x2 subsampled, U (chroma) samples.
VU_IMAGE_PIXEL_FORMAT_YUV420P	YUV 4:2:0 with a plane of 8 bit Y (luma) samples followed by a plane of 8 bit, 2x2 subsampled, U (chroma) samples followed by a plane of 8 bit, 2x2 subsampled, V (chroma) samples. Note that this format is also known as I420
VU_IMAGE_PIXEL_FORMAT_YUYV	YUV 4:2:2 with a single plane of interleaved 8 bit samples in YUYV order where each pixel has a Y value and U, V values 2x1 subsampled. Note that this format is also known as YUY2