Create an image which smoothly blends channel 1 into channel 2 as we move across the image. The output is placed in channel 7. In this case we want to operate on the whole default database. The default database in this case is implied by the FILE parameter. The MODEL command does not have to be explicitly listed as it is implied by the "channel variable" in the equation.
FILE = "irvine.pix" %7 = @x/@dbx*%2 + (@dbx-@x)/@dbx*%1
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