You might consider before going further whether what you need to do could be done more easily using a batch conversion software such as the excellent XNConvert. After a lot of Googling, trial and error and great frustration, I eventually developed my own way of working which may be unconventional but sidesteps some of issues I encountered. That really requires a detailed tutorial and sadly I can't immediately direct you to one! Having been down this path myself some years back, I can tell you that it can be a rather steep learning curve without a detailed guide. where do I type the code? Please advise specifically since I'm not familiar with command line software. It's only when trying to use the TIFFImageMetadata class directly instead of imageWriter.getDefaultStreamMetadata() that this particular exception is thrown. However, the image is written at 72 dpi instead of 200 dpi. This method "works" if I replace tifImageMetadata with a null reference. Is this a bug or am I doing something wrong? Is there a way to set this format name explicitly? Expected one of Īt .validateFormatName(AbstractMetadata.java:132)Īt .getAsTree(AbstractMetadata.java:71)Īt .(TIFFStreamMetadata.java:142)Īt .(TIFFImageWriter.java:931)Īt .(TIFFImageWriter.java:137)Īt org.x.(ImageProcessor.java:229)Īt org.x.(ImageProcessor.java:125)Īt org.x.(ImageProcessor.java:57) : Bad format name: "com_sun_media_imageio_plugins_tiff_stream_1.0". This fails with the following stack trace: Throw new IOException("Unable to write image to file: " + fileName, e) ImageWriter.write(tiffImageMetadata, new IIOImage(image, null, null), parameters) set the resolution of the target image to 200 dpiĮntries.add(new TIFFEntry(TIFF.TAG_X_RESOLUTION, new Rational(200))) Įntries.add(new TIFFEntry(TIFF.TAG_Y_RESOLUTION, new Rational(200))) įinal IIOMetadata tiffImageMetadata = new TIFFImageMetadata(entries) tCompressionType("CCITT T.6") // Group 4 Compression tCompressionMode(ImageWriteParam.MODE_EXPLICIT) tOutput(imageOutputStream) įinal ImageWriteParam parameters = imageWriter.getDefaultWriteParam() Throw new IOException("Unable to obtain an image writer for the tif file format!") įinal ImageWriter imageWriter = imageWriters.next() get a list of writers capable of writing the tif formatįinal Iterator imageWriters = ImageIO.getImageWritersByFormatName("tif") our various imaging systems downstream will not be able to support the Throw new IOException("Unable to obtain an output stream for file: " + fileName) tInput(imageInputStream, false, true) įinal BufferedImage image = imageReader.read(0) // get first image from fileįinal ImageOutputStream imageOutputStream = ImageIO.createImageOutputStream(file) images we receive in the manner in which we decide.įinal ImageReader imageReader = imageReaders.next() the call to count those pages fails on these images. we do this because some images we have received have empty second pages, and select the first available reader and use it to extract an image from a potential list of Throw new IOException("Unable to obtain an image reader to decode the file: " + fileName) get list of readers capable of reading the loaded fileįinal Iterator imageReaders = ImageIO.getImageReaders(imageInputStream) Throw new IOException("Unable to obtain an input stream for file: " + fileName) Private static void repairImageFile(String fileName)įinal ImageInputStream imageInputStream = ImageIO.createImageInputStream(file)
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