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64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
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///////////////////////////////////////////////////////////////////////
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// File: strokewidth.h
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// Description: Subclass of BBGrid to find uniformity of strokewidth.
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// Author: Ray Smith
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// Created: Mon Mar 31 16:17:01 PST 2008
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//
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// (C) Copyright 2008, Google Inc.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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///////////////////////////////////////////////////////////////////////
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#ifndef TESSERACT_TEXTORD_STROKEWIDTH_H__
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#define TESSERACT_TEXTORD_STROKEWIDTH_H__
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#include "bbgrid.h" // Base class.
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#include "tabvector.h" // For BLOBNBOX_CLIST.
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class TO_BLOCK;
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class ScrollView;
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namespace tesseract {
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class TabFind;
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// The StrokeWidth class holds all the normal and large blobs.
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// It is used to find good large blobs and move them to the normal blobs
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// by virtue of having a reasonable strokewidth compatible neighbour.
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class StrokeWidth : public BBGrid<BLOBNBOX, BLOBNBOX_CLIST, BLOBNBOX_C_IT> {
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public:
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StrokeWidth(int gridsize, const ICOORD& bleft, const ICOORD& tright);
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virtual ~StrokeWidth();
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// Puts the block blobs (normal and large) into the grid.
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void InsertBlobs(TO_BLOCK* block, TabFind* line_grid);
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// Moves the large blobs that have good stroke-width neighbours to the normal
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// blobs list.
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void MoveGoodLargeBlobs(int resolution, TO_BLOCK* block);
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// Displays the blobs green or red according to whether they are good or not.
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ScrollView* DisplayGoodBlobs(const char* window_name, ScrollView* tab_win);
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// Handles a click event in a display window.
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virtual void HandleClick(int x, int y);
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private:
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// Returns true if there is at least one side neighbour that has a similar
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// stroke width.
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bool GoodTextBlob(BLOBNBOX* blob);
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};
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} // namespace tesseract.
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#endif // TESSERACT_TEXTORD_STROKEWIDTH_H__
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