java.lang.NullPointerException: This exception has no message.

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One of the variables you're using is set to Null or you're passing a Null value to a method expecting another kind of value

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via Stack Overflow by Josh2g
, 1 year ago
java.lang.NullPointerException:
at undefined.SobelOperator.FindEdges(SobelOperator.java:17)
at undefined.Main.main(Main.java:5)

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