public static BufferedImage standard(ImageSingleBand<?> src, BufferedImage dst) {
if (src.getDataType().isInteger()) {
ImageInteger srcInt = (ImageInteger) src;
if (src.getDataType().isSigned()) {
double max = GImageStatistics.maxAbs(srcInt);
return colorizeSign(srcInt, dst, (int) max);
} else {
if (src.getDataType().getNumBits() == 8) {
dst = ConvertBufferedImage.convertTo((ImageUInt8) src, dst);
} else {
double max = GImageStatistics.maxAbs(srcInt);
dst = grayUnsigned(srcInt, dst, (int) max);
}
}
} else if (ImageFloat32.class.isAssignableFrom(src.getClass())) {
ImageFloat32 img = (ImageFloat32) src;
float max = ImageStatistics.maxAbs(img);
boolean hasNegative = false;
for (int i = 0; i < img.getHeight(); i++) {
for (int j = 0; j < img.getWidth(); j++) {
if (img.get(j, i) < 0) {
hasNegative = true;
break;
}
}
}
if (hasNegative) return colorizeSign(img, dst, (int) max);
else return grayMagnitude((ImageFloat32) src, dst, max);
}
return dst;
}
public static BufferedImage graySign(ImageFloat32 src, BufferedImage dst, float maxAbsValue) {
dst = checkInputs(src, dst);
if (maxAbsValue < 0) maxAbsValue = ImageStatistics.maxAbs(src);
for (int y = 0; y < src.height; y++) {
for (int x = 0; x < src.width; x++) {
float v = src.get(x, y);
int rgb = 127 + (int) (127 * v / maxAbsValue);
dst.setRGB(x, y, rgb << 16 | rgb << 8 | rgb);
}
}
return dst;
}
