How to use

ImageGrid

in

cognitivej.vision.overlay

public BufferedImage build() {
  BufferedImage newImage = new BufferedImage(calculateNeededWidth(elements, cols), calculateNeededHeight(elements, cols), BufferedImage.TYPE_INT_RGB);
  Graphics g = newImage.getGraphics();
  int startX = 0;
  int startY = 0;
  int runningHeight = 0;
  int rowHeight = 0;
  for (int i = 0; i < elements.size(); i++) {
    BufferedImage gridImage = elements.get(i);
    if (i % cols == 0) {
      startX = padding;
      startY = startY + runningHeight + padding;
    } else {
      startX = startX + gridImage.getWidth() + padding;
      rowHeight = Math.max(gridImage.getHeight(), rowHeight);
    }
    runningHeight = gridImage.getHeight();
    g.drawImage(gridImage, startX, startY, null, null);
  }
  g.dispose();
  return newImage;
}

private static void buildGrid(ImageOverlayBuilder imageOverlayBuilder, People people) {
  ImageGrid candidates = new ImageGrid(extractImagesFromPeople(people), 4);
  ApplyCaptionOutsideImageFilter applyCaptionOutsideImageFilter = new ApplyCaptionOutsideImageFilter(PointLocations.TOP_CENTER, ImageOverlayBuilder.DEFAULT_TEXT_FONT, CognitiveJColourPalette.WHITE, "Candidate Dataset");
  BufferedImage mergeImage = applyCaptionOutsideImageFilter.applyFilter(candidates.build());
  imageOverlayBuilder.mergeImage(mergeImage);
}