User's Guide

CONCAT2

Concatenate one or more images into an existing image

Function:

Concatenates an image into an existing image. The pixels in the existing image are updated by the pixels in the input image - no output image is created.

Parameters:

Image to update. The image must be BYTE and large enough to accept the IN image. Input image. Specifies the input image to be added. IN may contain BYTE or INTEGER*2 data and may be windowed or subbanded. The image must fit within the UPDATE image. Starting line. The line where the update is to begin. Starting sample. The sample where the update is to begin.
BACKGRND(0)
Background value. The pixel value to ignore during the update (used when OVEROPT = LEAVE or REPLACE). Used to specify background values or areas of masked data.

OVEROPT(MAX)
Overlap option

= LEAVE: Leave the current value. The value of the pixel from the UPDATE image is is to be used. = REPLACE: Replace the current value. The value of the pixel from the IN image is to be used. = MAX: Use the maximum value. The pixel from the UPDATE and IN image are compared, and the larger value is used. = MIN: Use the minimum value. The pixel from the UPDATE and IN image are compared, and the smaller value is used.

Example:

    None.

Description/Algorithm

See description of CONCAT.

Nonfatal error messages:

    None.

Fatal error messages:

    None.

User note:

  1. This is an AGRHYMET specific modification of CONCAT.