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+// Copyright 2020 Nick White.
+// Use of this source code is governed by the GPLv3
+// license that can be found in the LICENSE file.
+
+// preproc contains various image processing methods which are useful
+// for preprocessing page images for OCR. It contains both library
+// functions to incorporate into your own projects and standalone
+// tools which can be used directly.
+package preproc