It lists the parameters used for a geographic or projected coordinate system. Following are some examples:. A projected coordinate system string contains the word PROJCS and lists all of the geographic coordinate system parameters, plus detailed parameters that describe the projected coordinate system:.
See Coordinate System Strings and Codes for more information. Gain values for each band. With Landsat-8 files, the reflectance gains have been scaled by the sine of the sun elevation, as follows:. An array of reflectance offset values. With Landsat-8 files, the reflectance offsets have been scaled by the sine of the sun elevation, as follows:. Indicates which band numbers to automatically load into the Data Manager Greyscale or R , G , and B fields every time the file is opened.
By default, a new image is automatically loaded when a file that has default bands defined in its header is opened. If only one band number is used, then ENVI loads a greyscale image. The type of stretch to use when ENVI displays the image. The choices are as follows:. Path and filename of a DEM associated with the image. The ENVI-defined file type, such as a certain data format and processing result.
Lists full-width-half-maximum FWHM values of each band in an image. Units should be the same as those used for wavelength and set in the wavelength units parameter. Geographic corners for non-georeferenced files. Enter one to four locations. Each location must contain the following items, in this order:.
The number of bytes of embedded header information present in the file. ENVI skips these bytes when reading the file. The default value is 0 bytes. If the header file contains a coordinate system string field, any existing projection info line information is ignored. The value that, when divided into your data, would scale it from reflectance.
For example, if the value of 10, in your data represents a reflectance value of 1. Lists the center wavelength values of each band in an image. This type is declared in WinDef. Improve this answer. Community Bot 1 1 1 silver badge. And one should add that it shouldn't be used. RBerteig RBerteig Sign up or log in Sign up using Google.
Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Making Agile work for data science. Stack Gives Back We can access them directly. Now that the most relevant parts of the implementation have been explained, we can present the results for an example wave file. Reading the header of a wav file Published by One Step! Code on January 23, An example of the contents of the header for a wave file can be found below.
Allocating header bytes The bytes stored in the wave file header will be read byte-by-byte and stored in an array. Numerical data types sizes The size of the numerical data fields in the header is either 2 or 4 bytes long. Big and little-endian Besides the length in bytes of numerical data, another fact that needs to be considered is the order in which these bytes are stored.
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