Check 21 Java app - 1 of 2

Extracting data and images from Image Cash Letter files

Background

There are many terms relating to Image Cash Letter files: Check 21, DSTU X9.37, X9.100-187, and check truncation, to name a few.

"Check 21" refers to an act passed in 2003. From Wikipedia's "Check 21 Act" article:

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Java greyscale conversion

Using Java, how do you convert a color image to greyscale? The most straightforward answer I've found was on Code Beach, and is as follows:

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