private BufferedImage windowMonochrome(
ImageListViewCell displayedCell,
BufferedImage srcImg,
float windowLocation,
float windowWidth) {
BufferedImage destImg =
new BufferedImage(srcImg.getWidth(), srcImg.getHeight(), BufferedImage.TYPE_INT_RGB);
boolean isSigned = false;
int minValue = 0;
{
// hack: try to determine signedness and minValue from DICOM metadata if available --
// the BufferedImage's metadata don't contain that information reliably.
// Only works for some special cases
ImageListViewModelElement elt = displayedCell.getDisplayedModelElement();
if (elt instanceof DicomImageListViewModelElement) {
DicomImageListViewModelElement delt = (DicomImageListViewModelElement) elt;
DicomObject imgMetadata = delt.getDicomImageMetaData();
int bitsAllocated = imgMetadata.getInt(Tag.BitsAllocated);
isSigned = (1 == imgMetadata.getInt(Tag.PixelRepresentation));
if (isSigned && (bitsAllocated > 0)) {
minValue = -(1 << (bitsAllocated - 1));
}
}
}
final int windowedImageGrayscalesCount = 256; // for BufferedImage.TYPE_INT_RGB
float scale = windowedImageGrayscalesCount / windowWidth;
float offset = (windowWidth / 2 - windowLocation) * scale;
if (!(srcImg.getColorModel().getColorSpace().getType() == ColorSpace.TYPE_GRAY)) {
throw new IllegalArgumentException("source image must be grayscales");
}
Raster srcRaster = srcImg.getRaster();
if (srcRaster.getNumBands() != 1) {
throw new IllegalArgumentException(
"grayscale source image must have one color band, but has "
+ srcRaster.getNumBands()
+ "??");
}
WritableRaster resultRaster = destImg.getRaster();
for (int x = 0; x < srcImg.getWidth(); x++) {
for (int y = 0; y < srcImg.getHeight(); y++) {
int srcGrayValue = srcRaster.getSample(x, y, 0);
if (isSigned) {
srcGrayValue = (int) (short) srcGrayValue; // will only work for 16-bit signed...
}
float destGrayValue = scale * srcGrayValue + offset;
// clamp
if (destGrayValue < 0) {
destGrayValue = 0;
} else if (destGrayValue >= windowedImageGrayscalesCount) {
destGrayValue = windowedImageGrayscalesCount - 1;
}
resultRaster.setSample(x, y, 0, destGrayValue);
resultRaster.setSample(x, y, 1, destGrayValue);
resultRaster.setSample(x, y, 2, destGrayValue);
}
}
return destImg;
}
@Override
public void onDimseRSP(Association as, DicomObject cmd, DicomObject data) {
int status = cmd.getInt(Tag.Status);
switch (status) {
case 0:
{
LOG.debug("Dataset stored at {}", as.getCalledAET());
break;
}
case 0xA700:
{
LOG.error(
"Failed to store dataset - Out Of Resources! (status: {}H, calledAET:{}, comment:{})",
new Object[] {
StringUtils.shortToHex(status), as.getCalledAET(), cmd.getString(Tag.ErrorComment)
});
break;
}
case 0xA900:
{
LOG.error(
"Failed to store dataset - Dataset doesn't match SOP class! (status: {}H, calledAET:{}, comment:{})",
new Object[] {
StringUtils.shortToHex(status), as.getCalledAET(), cmd.getString(Tag.ErrorComment)
});
break;
}
case 0xC000:
{
LOG.error(
"Failed to store dataset - Can't understand! (status: {}H, calledAET:{}, comment:{})",
new Object[] {
StringUtils.shortToHex(status), as.getCalledAET(), cmd.getString(Tag.ErrorComment)
});
break;
}
case 0xB000:
case 0xB006:
case 0xB007:
LOG.warn(
"Dataset stored at {} with status {}H",
as.getCalledAET(),
StringUtils.shortToHex(status));
break;
default:
LOG.error(
"Failed to store dataset! (status: {}H, calledAET:{}, comment:{})",
new Object[] {
StringUtils.shortToHex(status), as.getCalledAET(), cmd.getString(Tag.ErrorComment)
});
}
}
@Override
public void onDimseRSP(Association as, DicomObject cmd, DicomObject data) {
int status = cmd.getInt(Tag.Status);
switch (status) {
case 0x0000:
case 0x0001:
case 0x0002:
case 0x0003:
break;
case 0x0116:
LOG.warn(
"Received Warning Status 116H (=Attribute Value Out of Range) from remote AE {}",
as.getCalledAET());
break;
default:
LOG.error(
"Sending IAN(SCN) failed with status {}H at calledAET:{}",
StringUtils.shortToHex(status),
as.getCalledAET());
}
}