## vrt.create_rgb_vrt()


Create a 3-band RGB VRT from VV and VH rasters.


Usage

``` python
vrt.create_rgb_vrt(
    vv_path,
    vh_path,
    output_vrt,
    *,
    decibel_scale=False,
)
```


The input scale can be linear or decibel.

Band assignments:

- Linear scale: Red=VV, Green=VH, Blue=VV/VH.
- Decibel scale: Red=VV, Green=VH, Blue=VV-VH.


## Parameters


`vv_path: str | Path | UPath`  
Path to the VV polarization raster.

`vh_path: str | Path | UPath`  
Path to the VH polarization raster.

`output_vrt: str | Path | UPath`  
Path where the output VRT file will be written.

`decibel_scale: bool = ``False`  
Whether the input rasters are in decibel scale. Selects the band expressions and descriptions accordingly.


## Raises


`ValueError`  
If the VV and VH rasters do not share the same dimensions, CRS, and geotransform (a mismatch would silently misalign the composited bands).