@cornerstonejs/dicom-image-loader
Version:
Cornerstone Image Loader for DICOM WADO-URI and WADO-RS and Local file
39 lines (38 loc) • 1.54 kB
JavaScript
import getValue from './getValue';
import getNumberValue from './getNumberValue';
export default function getOverlayPlaneModule(metaData) {
const overlays = [];
for (let overlayGroup = 0x00; overlayGroup <= 0x1e; overlayGroup += 0x02) {
let groupStr = `x60${overlayGroup.toString(16)}`;
if (groupStr.length === 4) {
groupStr = `x600${overlayGroup.toString(16)}`;
}
const data = getValue(metaData[`${groupStr}3000`]);
if (!data) {
continue;
}
const pixelData = [];
for (let i = 0; i < data.length; i++) {
for (let k = 0; k < 8; k++) {
const byte_as_int = metaData.Value[data.dataOffset + i];
pixelData[i * 8 + k] = (byte_as_int >> k) & 0b1;
}
}
overlays.push({
rows: getNumberValue(metaData[`${groupStr}0010`]),
columns: getNumberValue(metaData[`${groupStr}0011`]),
type: getValue(metaData[`${groupStr}0040`]),
x: getNumberValue(metaData[`${groupStr}0050`], 1) - 1,
y: getNumberValue(metaData[`${groupStr}0050`], 0) - 1,
pixelData,
description: getValue(metaData[`${groupStr}0022`]),
label: getValue(metaData[`${groupStr}1500`]),
roiArea: getValue(metaData[`${groupStr}1301`]),
roiMean: getValue(metaData[`${groupStr}1302`]),
roiStandardDeviation: getValue(metaData[`${groupStr}1303`]),
});
}
return {
overlays,
};
}