TPlanarYUVLuminanceSource Class

Definition

Luminance source class which support different formats of images.

Delphi
type TPlanarYUVLuminanceSource = class(TBaseLuminanceSource)
Inheritance
TObject
TPlanarYUVLuminanceSource

Constants

Constructors

Properties

Height (Inherited from TLuminanceSource)
Width (Inherited from TLuminanceSource)

Methods

CreateLuminanceSource(TArray<Byte>, Integer, Integer)
CropSupported
InversionSupported (Inherited from TBaseLuminanceSource)
Matrix

Fetches luminance data for the underlying bitmap. Values should be fetched using:

none
int luminance = array[y * width + x] and 0xff
RotateSupported (Inherited from TBaseLuminanceSource)
ThumbnailHeight
ThumbnailWidth
ToString (Inherited from TLuminanceSource)
crop(Integer, Integer, Integer, Integer)

Returns a new object with cropped image data. Implementations may keep a reference to the original data rather than a copy. Only callable if CropSupported is true.

getRow(Integer, TArray<Byte>)

Fetches one row of luminance data from the underlying platform's bitmap. Values range from 0 (black) to 255 (white). Because Java does not have an unsigned byte type, callers will have to bitwise and with 0xff for each value. It is preferable for implementations of this method to only fetch this row rather than the whole image, since no 2D Readers may be installed and getMatrix() may never be called.

invert (Inherited from TBaseLuminanceSource)
renderThumbnail
reverseHorizontal(Integer, Integer)
rotateCounterClockwise

Returns a new object with rotated image data by 90 degrees counterclockwise. Only callable if RotateSupported is true.

(Inherited from TBaseLuminanceSource)
rotateCounterClockwise45

Returns a new object with rotated image data by 45 degrees counterclockwise. Only callable if RotateSupported is true.

(Inherited from TBaseLuminanceSource)

Fields