DetectionFrameGroupStampTask.cpp

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/*
 * DetectionFrameGroupStampTask.cpp
 *
 *  Created on: May 5, 2017
 *      Author: mschefer
 */
 
#include "SEFramework/Image/Image.h"
#include "SEFramework/Image/VectorImage.h"
 
#include "SEImplementation/Plugin/PixelBoundaries/PixelBoundaries.h"
#include "SEImplementation/Plugin/DetectionFrameImages/DetectionFrameImages.h"
 
#include "SEImplementation/Plugin/DetectionFrameGroupStamp/DetectionFrameGroupStamp.h"
#include "SEImplementation/Plugin/DetectionFrameGroupStamp/DetectionFrameGroupStampTask.h"
 
 
namespace SourceXtractor {
 
void DetectionFrameGroupStampTask::computeProperties(SourceGroupInterface& group) const {
  // we are obviously assuming the same DetectionFrameImages for all sources
  auto detection_frame_images = group.cbegin()->getProperty<DetectionFrameImages>();

  int min_x = INT_MAX;
  int min_y = INT_MAX;
  int max_x = INT_MIN;
  int max_y = INT_MIN;
 
  for (auto& source : group) {
    const auto& boundaries = source.getProperty<PixelBoundaries>();
    const auto& min = boundaries.getMin();
    const auto& max = boundaries.getMax();
 
    min_x = std::min(min_x, min.m_x);
    min_y = std::min(min_y, min.m_y);
    max_x = std::max(max_x, max.m_x);
    max_y = std::max(max_y, max.m_y);
  }
  PixelCoordinate max(max_x, max_y);
  PixelCoordinate min(min_x, min_y);
 
 
  // FIXME temporary, for now just enlarge the area by a fixed amount of pixels
  PixelCoordinate border = (max - min) * .8 + PixelCoordinate(2, 2);
 
  min -= border;
  max += border;
 
  // clip to image size
  min.m_x = std::max(min.m_x, 0);
  min.m_y = std::max(min.m_y, 0);
  max.m_x = std::min(max.m_x, detection_frame_images.getWidth() - 1);
  max.m_y = std::min(max.m_y, detection_frame_images.getHeight() - 1);
 
  // create the image stamp
  auto width = max.m_x - min.m_x +1;
  auto height = max.m_y - min.m_y + 1;
 
  std::shared_ptr<DetectionImage> stamp = VectorImage<DetectionImage::PixelType>::create(
      *detection_frame_images.getImageChunk(LayerSubtractedImage, min.m_x, min.m_y, width, height));
  std::shared_ptr<DetectionImage> thresholded_stamp = VectorImage<DetectionImage::PixelType>::create(
      *detection_frame_images.getImageChunk(LayerThresholdedImage, min.m_x, min.m_y, width, height));
  std::shared_ptr<WeightImage> variance_stamp = VectorImage<WeightImage::PixelType>::create(
      *detection_frame_images.getImageChunk(LayerVarianceMap, min.m_x, min.m_y, width, height));
 
 
  group.setProperty<DetectionFrameGroupStamp>(stamp, thresholded_stamp, min, variance_stamp);
}
 
} // SEImplementation namespace