A data-driven library for interacting with common tiff image formats.
Take advantage of the newer JDK features in 21/23 to build a data-oriented programming model for interacting with TIFF files.
TiffFile file = TiffFileReader.read(FileChannel.open(FILE.toPath()));
// the IFD for the first image in the TIFF file
Ifd ifd0 = file.ifd(0);
// static utility classes are provided for tag-value access, values types are handled via
// enhanced switch, unsigned entry values are returned up-cast (e.g. ushort -> int)
int xResolution = XResolution.getRequired(ifd0);
// the first image in the file, images can either be Baseline or Extension types
Image image0 = file.image(0);
// navigate the sealed hierarchy to safely work with concrete subtypes
public Optional<RgbImage> asRgb(Image image) {
return switch (image) {
case Image.Lazy lazy -> asRgb(lazy.delegate());
case BaselineImage baselineImage -> {
switch (baselineImage) {
case BiLevelImage _, GrayscaleImage _, PaletteColorImage _ -> Optional.empty();
case RgbImage rgbImage -> Optional.of(rgbImage);
}
}
case Image.Unknown _, ExtensionImage _ -> Optional.empty();
};
}
RgbImage rgb0 = asRgb(image0).orElseThrow();
// and their concrete Pixel types
Pixel.Rgb rgb0_0 = rgb0.valueAt(0, 0);
int r = rgb0_0.unsignedR();
int g = rgb0_0.unsignedG();
int b = rgb0_0.unsignedB();This implementation relied primarily on TIFF6 documentation here.