In addition to the generic FME feature attributes that FME Workbench adds to all features (see About Feature Attributes), this format adds the format-specific attributes described in this section.
ENVIHDR features specify a matrix of x, y, and z coordinates. For each raster, there will only be a single feature returned.
|
Attribute Name |
Contents |
|
envihdr_type |
This will always be envihdr_raster. |
| envihdr_bbl | Lists the bad band multiplier values of each band in an image (typically 0 for bad bands and 1 for good bands). |
| envihdr_data_gain_values | Gain values for each band. |
| envihdr_data_offset_values | Offset values for each band. |
| envihdr_default_bands | Indicates which band numbers to automatically load into the Available Bands List gray scale or R, G, and B fields when the file is opened in ENVI. |
| envihdr_fwhm | Lists full-width-half-maximum (FWHM) values of each band in an image. Units should be the same as those used for wavelength. |
| envihdr_reflectance_scale_factor | The value that, when divided into your data, would scale it from 0-1 reflectance. |
| envihdr_sensor_type | Instrument types, such as Landsat TM, SPOT, RADARSAT, and so on. |
| envihdr_spectra_names | A comma-separated list of ASCII names pertaining to spectral library files. |
| envihdr_wavelength | Lists the center wavelength values of each band in an image. |
| envihdr_wavelength_units | Text string indicating the wavelength units. |
|
envihdr_interleaving_type |
The organization of the bands in the file. Acceptable values are BIL, which is band interleaved by line, BIP, which is band interleaved by pixel, and BSQ, which is band sequential. If not specified, the default interleaving is BSQ. |
|
envihdr_tab_file_generation |
Enables or disables the generation of a TAB file along with the output raster. The value can be yes or no. The default value is yes. This is a writer attribute. |