Full-pol data format
====================

The package supports full polarimetric SAR data in the following matrix representations:

- **S2** (Scattering matrix)
- **C3 / C4** (Covariance matrix)
- **T3 / T4** (Coherency matrix)

Each format can be provided as  `.tif` or `.bin`/ `.hdr` files with associated metadata.

S2 – Scattering Matrix
----------------------
Note: All elements of the scattering matrix are in complex data type. 

+------------+------------------+------------------+
| Element    | .bin/.hdr Files  | .tif Files       |
+============+==================+==================+
| S_HH       | s11.bin/.hdr     | s11.tif          |
+------------+------------------+------------------+
| S_HV       | s12.bin/.hdr     | s12.tif          |
+------------+------------------+------------------+
| S_VH       | s21.bin/.hdr     | s21.tif          |
+------------+------------------+------------------+
| S_VV       | s22.bin/.hdr     | s22.tif          |
+------------+------------------+------------------+

C3 / C4 – Covariance Matrix
---------------------------

Note: All elements of the covariance matrix are stored as float values. Complex-valued entries are separated into real and imaginary components. C4 includes additional terms compared to C3.

+----------------+--------------------------+--------------------+
| Element        | .bin/.hdr Files          | .tif Files         |
+================+==========================+====================+
| C11            | C11.bin / C11.hdr        | C11.tif            |
+----------------+--------------------------+--------------------+
| C12 (Real)     | C12_real.bin / .hdr      | C12_real.tif       |
+----------------+--------------------------+--------------------+
| C12 (Imag)     | C12_imag.bin / .hdr      | C12_imag.tif       |
+----------------+--------------------------+--------------------+
| C13 (Real)     | C13_real.bin / .hdr      | C13_real.tif       |
+----------------+--------------------------+--------------------+
| C13 (Imag)     | C13_imag.bin / .hdr      | C13_imag.tif       |
+----------------+--------------------------+--------------------+
| C14 (Real)\*   | C14_real.bin / .hdr      | C14_real.tif       |
+----------------+--------------------------+--------------------+
| C14 (Imag)\*   | C14_imag.bin / .hdr      | C14_imag.tif       |
+----------------+--------------------------+--------------------+
| C22            | C22.bin / C22.hdr        | C22.tif            |
+----------------+--------------------------+--------------------+
| C23 (Real)     | C23_real.bin / .hdr      | C23_real.tif       |
+----------------+--------------------------+--------------------+
| C23 (Imag)     | C23_imag.bin / .hdr      | C23_imag.tif       |
+----------------+--------------------------+--------------------+
| C24 (Real)\*   | C24_real.bin / .hdr      | C24_real.tif       |
+----------------+--------------------------+--------------------+
| C24 (Imag)\*   | C24_imag.bin / .hdr      | C24_imag.tif       |
+----------------+--------------------------+--------------------+
| C33            | C33.bin / C33.hdr        | C33.tif            |
+----------------+--------------------------+--------------------+
| C34 (Real)\*   | C34_real.bin / .hdr      | C34_real.tif       |
+----------------+--------------------------+--------------------+
| C34 (Imag)\*   | C34_imag.bin / .hdr      | C34_imag.tif       |
+----------------+--------------------------+--------------------+
| C44\*          | C44.bin / C44.hdr        | C44.tif            |
+----------------+--------------------------+--------------------+

\* Only applicable to C4 (4x4 covariance matrix).

T3 / T4 – Coherency Matrix
--------------------------

Note: All elements of the coherency matrix are stored as float values (real and imaginary parts separated for complex entries).

+----------------+--------------------------+--------------------+
| Element        | .bin/.hdr Files          | .tif Files         |
+================+==========================+====================+
| T11            | T11.bin / T11.hdr        | T11.tif            |
+----------------+--------------------------+--------------------+
| T12 (Real)     | T12_real.bin / .hdr      | T12_real.tif       |
+----------------+--------------------------+--------------------+
| T12 (Imag)     | T12_imag.bin / .hdr      | T12_imag.tif       |
+----------------+--------------------------+--------------------+
| T13 (Real)     | T13_real.bin / .hdr      | T13_real.tif       |
+----------------+--------------------------+--------------------+
| T13 (Imag)     | T13_imag.bin / .hdr      | T13_imag.tif       |
+----------------+--------------------------+--------------------+
| T14 (Real)\*   | T14_real.bin / .hdr      | T14_real.tif       |
+----------------+--------------------------+--------------------+
| T14 (Imag)\*   | T14_imag.bin / .hdr      | T14_imag.tif       |
+----------------+--------------------------+--------------------+
| T22            | T22.bin / T22.hdr        | T22.tif            |
+----------------+--------------------------+--------------------+
| T23 (Real)     | T23_real.bin / .hdr      | T23_real.tif       |
+----------------+--------------------------+--------------------+
| T23 (Imag)     | T23_imag.bin / .hdr      | T23_imag.tif       |
+----------------+--------------------------+--------------------+
| T24 (Real)\*   | T24_real.bin / .hdr      | T24_real.tif       |
+----------------+--------------------------+--------------------+
| T24 (Imag)\*   | T24_imag.bin / .hdr      | T24_imag.tif       |
+----------------+--------------------------+--------------------+
| T33            | T33.bin / T33.hdr        | T33.tif            |
+----------------+--------------------------+--------------------+
| T34 (Real)\*   | T34_real.bin / .hdr      | T34_real.tif       |
+----------------+--------------------------+--------------------+
| T34 (Imag)\*   | T34_imag.bin / .hdr      | T34_imag.tif       |
+----------------+--------------------------+--------------------+
| T44\*          | T44.bin / T44.hdr        | T44.tif            |
+----------------+--------------------------+--------------------+

\* Only applicable to T4 (4x4 coherency matrix).

Matrix Compatibility Overview
-----------------------------

+---------+-----------------------------+----------------------+
| Format  | Description                 | Supported File Types |
+=========+=============================+======================+
| S2      | 2x2 Scattering matrix       | .bin/.hdr, .tif      |
+---------+-----------------------------+----------------------+
| C3      | 3x3 Covariance matrix       | .bin/.hdr, .tif      |
+---------+-----------------------------+----------------------+
| C4      | 4x4 Covariance matrix       | .bin/.hdr, .tif      |
+---------+-----------------------------+----------------------+
| T3      | 3x3 Coherency matrix        | .bin/.hdr, .tif      |
+---------+-----------------------------+----------------------+
| T4      | 4x4 Coherency matrix        | .bin/.hdr, .tif      |
+---------+-----------------------------+----------------------+