我实际上尝试使用 CIE Lab 颜色空间读取和写入压缩的 tif 文件。
不幸的是,如果我尝试仅读取并在此之后将 tif 写回 HDD,则颜色与原始 tif 不同。
ImageIO lib 是否能够读取和写入具有 CIE 实验室色彩空间的压缩 tif 文件?
如果可能的话,我担心代码有问题。在 singleTiffs 列表中至少有一个 tiff-ImageInputStream 以这种方式创建: ImageIO.createImageInputStream(testTiff)
如果有人可以帮助我,那就太好了。非常感谢!
// Get iterator for input images
Iterator<ImageInputStream> iterator = singleTiffs.iterator();
// Get tif writer and set output to file
Iterator writers = ImageIO.getImageWritersByFormatName("tiff");
ImageWriter writer = (ImageWriter) writers.next();
ImageOutputStream ios = ImageIO.createImageOutputStream(newMultiPageTIFF);
writer.setOutput(ios);
// Write each image out to the new file
boolean firstImage = true;
while(iterator.hasNext())
{
ImageInputStream iis = iterator.next();
// Get a reader for the stream
Iterator readers = ImageIO.getImageReaders(iis);
ImageReader reader = (ImageReader) readers.next();
reader.setInput(iis);
// Read the stream metadata
// IIOMetadata streamMetadata = reader.getStreamMetadata();
// Read the image metadata - we are assuming there is only one image
// in the tiff
IIOMetadata imageMetadata = reader.getImageMetadata(0);
// Set up the writeParam
TIFFImageWriteParam tiffWriteParam = new TIFFImageWriteParam(Locale.US);
tiffWriteParam.setCompressionMode(ImageWriteParam.MODE_COPY_FROM_METADATA);
BufferedImage bi = reader.read(0, null);
IIOImage image = new IIOImage(bi, null, imageMetadata);
if(firstImage == false)
writer.writeInsert(-1, image, tiffWriteParam);
else
{
writer.write(null, image, tiffWriteParam);
firstImage = false;
}
// Done writing all images for this image
reader.dispose();
}
// End writing of all files
writer.dispose();