Mercurial > hg > orthanc-stone
annotate Framework/Radiography/RadiographyAlphaLayer.cpp @ 432:4eb96c6b4e96 am-vsol-upgrade
improved handling of MONOCHROME1, background and invertion
| author | am@osimis.io |
|---|---|
| date | Mon, 03 Dec 2018 13:53:29 +0100 |
| parents | b85f635f1eb5 |
| children | 77e0eb83ff63 |
| rev | line source |
|---|---|
| 430 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 5 * Copyright (C) 2017-2018 Osimis S.A., Belgium | |
| 6 * | |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "RadiographyAlphaLayer.h" | |
| 23 | |
| 24 #include "RadiographyScene.h" | |
| 25 | |
| 26 #include <Core/Images/Image.h> | |
| 27 #include <Core/OrthancException.h> | |
| 28 | |
| 29 namespace OrthancStone | |
| 30 { | |
| 31 | |
| 32 void RadiographyAlphaLayer::SetAlpha(Orthanc::ImageAccessor* image) | |
| 33 { | |
| 34 std::auto_ptr<Orthanc::ImageAccessor> raii(image); | |
| 35 | |
| 36 if (image == NULL) | |
| 37 { | |
| 38 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 39 } | |
| 40 | |
| 41 if (image->GetFormat() != Orthanc::PixelFormat_Grayscale8) | |
| 42 { | |
| 43 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat); | |
| 44 } | |
| 45 | |
| 46 SetSize(image->GetWidth(), image->GetHeight()); | |
| 47 alpha_ = raii; | |
| 48 } | |
| 49 | |
| 50 void RadiographyAlphaLayer::Render(Orthanc::ImageAccessor& buffer, | |
| 51 const AffineTransform2D& viewTransform, | |
| 52 ImageInterpolation interpolation) const | |
| 53 { | |
| 54 if (alpha_.get() == NULL) | |
| 55 { | |
| 56 return; | |
| 57 } | |
| 58 | |
| 59 if (buffer.GetFormat() != Orthanc::PixelFormat_Float32) | |
| 60 { | |
| 61 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat); | |
| 62 } | |
| 63 | |
| 64 unsigned int cropX, cropY, cropWidth, cropHeight; | |
| 65 GetCrop(cropX, cropY, cropWidth, cropHeight); | |
| 66 | |
| 67 const AffineTransform2D t = AffineTransform2D::Combine( | |
| 68 viewTransform, GetTransform(), | |
| 69 AffineTransform2D::CreateOffset(cropX, cropY)); | |
| 70 | |
| 71 Orthanc::ImageAccessor cropped; | |
| 72 alpha_->GetRegion(cropped, cropX, cropY, cropWidth, cropHeight); | |
| 73 | |
| 74 Orthanc::Image tmp(Orthanc::PixelFormat_Grayscale8, buffer.GetWidth(), buffer.GetHeight(), false); | |
| 75 | |
| 76 t.Apply(tmp, cropped, interpolation, true /* clear */); | |
| 77 | |
| 78 // Blit | |
| 79 const unsigned int width = buffer.GetWidth(); | |
| 80 const unsigned int height = buffer.GetHeight(); | |
| 81 | |
| 82 float value = foreground_; | |
| 83 | |
| 84 if (useWindowing_) | |
| 85 { | |
| 86 float center, width; | |
| 87 if (scene_.GetWindowing(center, width)) | |
| 88 { | |
|
432
4eb96c6b4e96
improved handling of MONOCHROME1, background and invertion
am@osimis.io
parents:
430
diff
changeset
|
89 value = center + width / 2.0f; // set it to the maximum pixel value of the image |
| 430 | 90 } |
| 91 } | |
| 92 | |
| 93 for (unsigned int y = 0; y < height; y++) | |
| 94 { | |
| 95 float *q = reinterpret_cast<float*>(buffer.GetRow(y)); | |
| 96 const uint8_t *p = reinterpret_cast<uint8_t*>(tmp.GetRow(y)); | |
| 97 | |
| 98 for (unsigned int x = 0; x < width; x++, p++, q++) | |
| 99 { | |
| 100 float a = static_cast<float>(*p) / 255.0f; | |
| 101 | |
| 102 *q = (a * value + (1.0f - a) * (*q)); | |
| 103 } | |
| 104 } | |
| 105 } | |
| 106 | |
| 107 bool RadiographyAlphaLayer::GetRange(float& minValue, | |
| 108 float& maxValue) const | |
| 109 { | |
| 110 if (useWindowing_) | |
| 111 { | |
| 112 return false; | |
| 113 } | |
| 114 else | |
| 115 { | |
| 116 minValue = 0; | |
| 117 maxValue = 0; | |
| 118 | |
| 119 if (foreground_ < 0) | |
| 120 { | |
| 121 minValue = foreground_; | |
| 122 } | |
| 123 | |
| 124 if (foreground_ > 0) | |
| 125 { | |
| 126 maxValue = foreground_; | |
| 127 } | |
| 128 | |
| 129 return true; | |
| 130 } | |
| 131 } | |
| 132 } |