case 3:
if (extendImageHeader.isSawJFIFMarker()) {
/* JFIF implies YCbCr */
rawImage.setRawColorspace(JPEGColorSpace.YCbCr);
colorConvertor = new YCbCr2RGBColorConvertor();
} else if (extendImageHeader.isSawAdobeMarker()) {
switch (extendImageHeader.getAdobeTransform()) {
case 0:
rawImage.setRawColorspace(JPEGColorSpace.RGB);
colorConvertor = new NullColorConvertor();
break;
case 1:
rawImage.setRawColorspace(JPEGColorSpace.YCbCr);
colorConvertor = new YCbCr2RGBColorConvertor();
break;
default:
/* assume it's YCbCr */
rawImage.setRawColorspace(JPEGColorSpace.YCbCr);
colorConvertor = new YCbCr2RGBColorConvertor();
break;
}
} else {
/*
* Saw no special markers, try to guess from the component IDs
*/
int cid0 = frameHeader.getComponents()[0].getC();
int cid1 = frameHeader.getComponents()[1].getC();
int cid2 = frameHeader.getComponents()[2].getC();
if (cid0 == 1 && cid1 == 2 && cid2 == 3) {
/* assume JFIF w/out marker */
rawImage.setRawColorspace(JPEGColorSpace.YCbCr);
colorConvertor = new YCbCr2RGBColorConvertor();
} else if (cid0 == 82 && cid1 == 71 && cid2 == 66) {
/* ASCII 'R', 'G', 'B' */
rawImage.setRawColorspace(JPEGColorSpace.RGB);
colorConvertor = new NullColorConvertor();
} else {
/* assume it's YCbCr */
rawImage.setRawColorspace(JPEGColorSpace.YCbCr);
colorConvertor = new YCbCr2RGBColorConvertor();
}
}
/* Always guess RGB is proper output colorspace. */
rawImage.setColorspace(JPEGColorSpace.RGB);