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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 // Original code is licensed as follows: | 6 // Original code is licensed as follows: |
7 /* | 7 /* |
8 * Copyright 2009 ZXing authors | 8 * Copyright 2009 ZXing authors |
9 * | 9 * |
10 * Licensed under the Apache License, Version 2.0 (the "License"); | 10 * Licensed under the Apache License, Version 2.0 (the "License"); |
11 * you may not use this file except in compliance with the License. | 11 * you may not use this file except in compliance with the License. |
12 * You may obtain a copy of the License at | 12 * You may obtain a copy of the License at |
13 * | 13 * |
14 * http://www.apache.org/licenses/LICENSE-2.0 | 14 * http://www.apache.org/licenses/LICENSE-2.0 |
15 * | 15 * |
16 * Unless required by applicable law or agreed to in writing, software | 16 * Unless required by applicable law or agreed to in writing, software |
17 * distributed under the License is distributed on an "AS IS" BASIS, | 17 * distributed under the License is distributed on an "AS IS" BASIS, |
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
19 * See the License for the specific language governing permissions and | 19 * See the License for the specific language governing permissions and |
20 * limitations under the License. | 20 * limitations under the License. |
21 */ | 21 */ |
22 | 22 |
23 #include "barcode.h" | 23 #include "../barcode.h" |
24 #include "include/BC_Binarizer.h" | 24 #include "../BC_Binarizer.h" |
25 #include "include/BC_LuminanceSource.h" | 25 #include "../BC_LuminanceSource.h" |
26 #include "include/BC_CommonBitMatrix.h" | 26 #include "BC_CommonBitMatrix.h" |
27 #include "include/BC_CommonBitArray.h" | 27 #include "BC_CommonBitArray.h" |
28 #include "include/BC_GlobalHistogramBinarizer.h" | 28 #include "BC_GlobalHistogramBinarizer.h" |
29 const FX_INT32 LUMINANCE_BITS = 5; | 29 const FX_INT32 LUMINANCE_BITS = 5; |
30 const FX_INT32 LUMINANCE_SHIFT = 8 - LUMINANCE_BITS; | 30 const FX_INT32 LUMINANCE_SHIFT = 8 - LUMINANCE_BITS; |
31 const FX_INT32 LUMINANCE_BUCKETS = 1 << LUMINANCE_BITS; | 31 const FX_INT32 LUMINANCE_BUCKETS = 1 << LUMINANCE_BITS; |
32 CBC_GlobalHistogramBinarizer::CBC_GlobalHistogramBinarizer(CBC_LuminanceSource *
source): CBC_Binarizer(source) | 32 CBC_GlobalHistogramBinarizer::CBC_GlobalHistogramBinarizer(CBC_LuminanceSource *
source): CBC_Binarizer(source) |
33 { | 33 { |
34 } | 34 } |
35 CBC_GlobalHistogramBinarizer::~CBC_GlobalHistogramBinarizer() | 35 CBC_GlobalHistogramBinarizer::~CBC_GlobalHistogramBinarizer() |
36 { | 36 { |
37 } | 37 } |
38 CBC_CommonBitArray *CBC_GlobalHistogramBinarizer::GetBlackRow(FX_INT32 y, CBC_Co
mmonBitArray *row, FX_INT32 &e) | 38 CBC_CommonBitArray *CBC_GlobalHistogramBinarizer::GetBlackRow(FX_INT32 y, CBC_Co
mmonBitArray *row, FX_INT32 &e) |
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160 for (x = secondPeak - 1; x > firstPeak; x--) { | 160 for (x = secondPeak - 1; x > firstPeak; x--) { |
161 FX_INT32 fromFirst = x - firstPeak; | 161 FX_INT32 fromFirst = x - firstPeak; |
162 FX_INT32 score = fromFirst * fromFirst * (secondPeak - x) * (maxBucketCo
unt - buckets[x]); | 162 FX_INT32 score = fromFirst * fromFirst * (secondPeak - x) * (maxBucketCo
unt - buckets[x]); |
163 if (score > bestValleyScore) { | 163 if (score > bestValleyScore) { |
164 bestValley = x; | 164 bestValley = x; |
165 bestValleyScore = score; | 165 bestValleyScore = score; |
166 } | 166 } |
167 } | 167 } |
168 return bestValley << LUMINANCE_SHIFT; | 168 return bestValley << LUMINANCE_SHIFT; |
169 } | 169 } |
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