The declared exception ImageReadException is not actually thrown by the constructor TransparencyFilterGrayscale(byte[]).

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/imaging/trunk@1535234 13f79535-47bb-0310-9956-ffa450edef68
The declared exception ImageReadException is not actually thrown by the constructor TransparencyFilterTrueColor(byte[]).

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/imaging/trunk@1535235 13f79535-47bb-0310-9956-ffa450edef68