Mercurial > hg > orthanc-wsi
annotate Framework/Inputs/DecodedTiledPyramid.cpp @ 279:77afef2cf64b
automated extraction of the imaged volume if using OpenSlide
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 12 Jul 2023 18:06:34 +0200 |
| parents | 20a730889ae2 |
| children | 7020852a8fa9 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 254 | 5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
| 6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium | |
| 0 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
| 9 * modify it under the terms of the GNU Affero General Public License | |
| 10 * as published by the Free Software Foundation, either version 3 of | |
| 11 * the License, or (at your option) any later version. | |
| 12 * | |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 * Affero General Public License for more details. | |
| 17 * | |
| 18 * You should have received a copy of the GNU Affero General Public License | |
| 19 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 20 **/ | |
| 21 | |
| 22 | |
|
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23 #include "../PrecompiledHeadersWSI.h" |
| 0 | 24 #include "DecodedTiledPyramid.h" |
| 25 | |
| 26 #include "../ImageToolbox.h" | |
| 27 | |
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28 #include <Compatibility.h> // For std::unique_ptr |
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29 |
| 0 | 30 #include <memory> |
| 31 #include <cassert> | |
| 32 | |
| 33 namespace OrthancWSI | |
| 34 { | |
| 35 DecodedTiledPyramid::DecodedTiledPyramid() | |
| 36 { | |
| 37 SetBackgroundColor(255, 255, 255); | |
| 38 } | |
| 39 | |
| 40 | |
| 41 void DecodedTiledPyramid::SetBackgroundColor(uint8_t red, | |
| 42 uint8_t green, | |
| 43 uint8_t blue) | |
| 44 { | |
| 45 backgroundColor_[0] = red; | |
| 46 backgroundColor_[1] = green; | |
| 47 backgroundColor_[2] = blue; | |
| 48 } | |
| 49 | |
| 50 | |
| 51 void DecodedTiledPyramid::GetBackgroundColor(uint8_t& red, | |
| 52 uint8_t& green, | |
| 53 uint8_t& blue) const | |
| 54 { | |
| 55 red = backgroundColor_[0]; | |
| 56 green = backgroundColor_[1]; | |
| 57 blue = backgroundColor_[2]; | |
| 58 } | |
| 59 | |
| 60 | |
| 61 Orthanc::ImageAccessor* DecodedTiledPyramid::DecodeTile(unsigned int level, | |
| 62 unsigned int tileX, | |
| 63 unsigned int tileY) | |
| 64 { | |
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65 unsigned int x = tileX * GetTileWidth(level); |
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66 unsigned int y = tileY * GetTileHeight(level); |
| 0 | 67 |
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68 std::unique_ptr<Orthanc::ImageAccessor> tile |
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69 (ImageToolbox::Allocate(GetPixelFormat(), GetTileWidth(level), GetTileHeight(level))); |
| 0 | 70 |
| 71 if (x >= GetLevelWidth(level) || | |
| 72 y >= GetLevelHeight(level)) // (*) | |
| 73 { | |
| 74 ImageToolbox::Set(*tile, backgroundColor_[0], backgroundColor_[1], backgroundColor_[2]); | |
| 75 return tile.release(); | |
| 76 } | |
| 77 | |
| 78 bool fit = true; | |
| 79 unsigned int regionWidth; | |
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80 if (x + GetTileWidth(level) <= GetLevelWidth(level)) |
| 0 | 81 { |
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82 regionWidth = GetTileWidth(level); |
| 0 | 83 } |
| 84 else | |
| 85 { | |
| 86 assert(GetLevelWidth(level) >= x); // This results from (*) | |
| 87 regionWidth = GetLevelWidth(level) - x; | |
| 88 fit = false; | |
| 89 } | |
| 90 | |
| 91 unsigned int regionHeight; | |
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92 if (y + GetTileHeight(level) <= GetLevelHeight(level)) |
| 0 | 93 { |
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94 regionHeight = GetTileHeight(level); |
| 0 | 95 } |
| 96 else | |
| 97 { | |
| 98 assert(GetLevelHeight(level) >= y); // This results from (*) | |
| 99 regionHeight = GetLevelHeight(level) - y; | |
| 100 fit = false; | |
| 101 } | |
| 102 | |
| 103 if (fit) | |
| 104 { | |
| 105 // The tile entirely lies inside the image | |
| 106 ReadRegion(*tile, level, x, y); | |
| 107 } | |
| 108 else | |
| 109 { | |
| 110 // The tile exceeds the size of image, decode it to a temporary buffer | |
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111 std::unique_ptr<Orthanc::ImageAccessor> cropped |
| 0 | 112 (ImageToolbox::Allocate(GetPixelFormat(), regionWidth, regionHeight)); |
| 113 ReadRegion(*cropped, level, x, y); | |
| 114 | |
| 115 // Create a white tile, and fill it with the cropped content | |
| 116 ImageToolbox::Set(*tile, backgroundColor_[0], backgroundColor_[1], backgroundColor_[2]); | |
| 117 ImageToolbox::Embed(*tile, *cropped, 0, 0); | |
| 118 } | |
| 119 | |
| 120 return tile.release(); | |
| 121 } | |
| 122 } |