MERGEBAND

Description

Data can be distributed with multiple bands (for example, red, green, blue, and near infra-red) that are separated into different files. MERGEBAND lets you merge and recombine multiple bands into a single PCIDSK (.pix) file.

Parameters

Name	Type	Length	Value range
Input: Input image layers *	Raster port	1 -
Output: Output file *	Raster port	1 -
RPC File	String	0 -

* Required parameter

Parameter descriptions

Input: Input image layers

Specifies the input image layers to be processed.

Output: Output file

Specifies the output PCIDSK file that will contain the merged bands.

If the file already exists, it will be overwritten.

RPC File

Specifies the name of the input RPC text file that provides the coefficients that define the rational functions math model for the scene.

If this parameter is not specified, MERGEBAND automatically finds the RPC text file in the same folder as the input image files. The RPC text file name must have the same base name as one of the image file names, with the suffix "_rpc.txt".

Details

Because of CD size limitations, some high-resolution satellite data, such as IKONOS, is distributed with an RPC file and the four channels (blue, green, red, and NIR) in separate NITF or TIFF files. MERGEBAND recombines the four channels into a single multi-channel file and imports the RPC file.

The RPC file is a text file that provides the coefficients that define the rational functions math model for the scene.

If the RPCFILE parameter is not specified, MERGEBAND automatically finds the RPC text file in the same folder as the image files. The RPC text file name must have the same base name as one of the image file names with "_rpc.txt" appended