public static ImageHeader load(Properties imageProperties, File imageDir) throws IOException {
int dataType = Integer.parseInt(imageProperties.getProperty("dataType"));
int minX = Integer.parseInt(imageProperties.getProperty("minX", "0"));
int minY = Integer.parseInt(imageProperties.getProperty("minY", "0"));
int width = Integer.parseInt(imageProperties.getProperty("width"));
int height = Integer.parseInt(imageProperties.getProperty("height"));
int tileGridXOffset = Integer.parseInt(imageProperties.getProperty("tileGridXOffset", "0"));
int tileGridYOffset = Integer.parseInt(imageProperties.getProperty("tileGridYOffset", "0"));
int tileWidth = Integer.parseInt(imageProperties.getProperty("tileWidth"));
int tileHeight = Integer.parseInt(imageProperties.getProperty("tileHeight"));
int numberOfBits = Integer.parseInt(imageProperties.getProperty("numberOfBits", "0"));
String tileFormat = imageProperties.getProperty("tileFormat", "raw.zip");
SampleModel sampleModel;
ColorModel colorModel;
if (tileFormat.startsWith("raw")) {
if (numberOfBits == 1 || numberOfBits == 2 || numberOfBits == 4) {
sampleModel =
new MultiPixelPackedSampleModel(dataType, tileWidth, tileHeight, numberOfBits);
} else {
sampleModel = ImageUtils.createSingleBandedSampleModel(dataType, tileWidth, tileHeight);
}
colorModel = null;
} else {
RenderedOp tile00 =
FileLoadDescriptor.create(
new File(imageDir, "0-0." + tileFormat).getPath(), null, true, null);
sampleModel = tile00.getSampleModel().createCompatibleSampleModel(tileWidth, tileHeight);
colorModel = tile00.getColorModel();
}
ImageLayout imageLayout =
new ImageLayout(
minX,
minY,
width,
height,
tileGridXOffset,
tileGridYOffset,
tileWidth,
tileHeight,
sampleModel,
colorModel);
return new ImageHeader(imageLayout, tileFormat);
}
