js-dicom/src/ImageUtility/convertColorSpace.js

this is js-dicom

import { convertRGBColorByPixel, convertRGBColorByPlane,
    convertYBRFullByPixel, convertYBRFullByPlane,
    convertPALETTECOLOR } from './colorSpaceConverters';

function convertRGB (imageFrame, rgbaBuffer) {
    if (imageFrame.planarConfiguration === 0) {
        convertRGBColorByPixel(imageFrame.pixelData, rgbaBuffer);
    } else {
        convertRGBColorByPlane(imageFrame.pixelData, rgbaBuffer);
    }
}

function convertYBRFull (imageFrame, rgbaBuffer) {
    if (imageFrame.planarConfiguration === 0) {
        convertYBRFullByPixel(imageFrame.pixelData, rgbaBuffer);
    } else {
        convertYBRFullByPlane(imageFrame.pixelData, rgbaBuffer);
    }
}

export default function convertColorSpace (imageFrame, imageData) {
    const rgbaBuffer = imageData.data;
    // convert based on the photometric interpretation

    if (imageFrame.photometricInterpretation === 'RGB') {
        convertRGB(imageFrame, rgbaBuffer);
    } else if (imageFrame.photometricInterpretation === 'YBR_RCT') {
        convertRGB(imageFrame, rgbaBuffer);
    } else if (imageFrame.photometricInterpretation === 'YBR_ICT') {
        convertRGB(imageFrame, rgbaBuffer);
    } else if (imageFrame.photometricInterpretation === 'PALETTE COLOR') {
        convertPALETTECOLOR(imageFrame, rgbaBuffer);
    } else if (imageFrame.photometricInterpretation === 'YBR_FULL_422') {
        convertRGB(imageFrame, rgbaBuffer);
    } else if (imageFrame.photometricInterpretation === 'YBR_FULL') {
        convertYBRFull(imageFrame, rgbaBuffer);
    } else {
        throw new Error(`No color space conversion for photometric interpretation ${imageFrame.photometricInterpretation}`);
    }
}