RgbaImage

[Malitsky, N. D <mal...@bn...>]

Hello,

For the image types, I would suggest to start with the RGBA model. 
There are two primary reasons. First, it allows to deal with 
the explicit concepts without proprietary enumeration schemes. 
Second, one can consider RGBA as a common denominator which is 
supported by all C++ and Java client applications.

Below please find the corresponding structure. 
In the context of NDArray, it addresses the Mono and RGB color modes. 

Any comments are welcome. 
The next important topic is a compression. 

-Nikolay

struct RgbaImage {

byte[2] byteOrder; // "II" or "MM" - TIFF

// Basic fields

int width; // number of columns
int height; // number of rows

int x; // start of readout region (left)
int y; // start of readout region (top)

int bytesPerPixel; // TINE also uses effectiveBitsPerPixel
int samplesPerPixel; // 1 -> for grayscale and palette-color images; 3
-> for RGB; 4 -> for RGBA

// NDArray variant-specific features defined via the Java BufferedImage
concepts

int pixelStride; // number of elements between two samples for the same
band (e.g. red)
                 // 0 -> RGB1 [3, NX, NY]; 
                 // width - 1 -> RGB2 [NX, 3, NY]; 
		     // samplesPerPixel - 1 -> RGB3 [NY, NY, 3]

int dataType;  // PvType id, but  NDArray also uses unsigned integers

// Data

byte[size] data; // size = width*height* bytesPerPixel

};