Where is your heart at?

January 15, 2008

Lyrics by Rufus Wainwright and performed by Jaime Cullum

This song appears on Meet the Robinsons OST. 

04. Jamie Cullum - Where Is Your Heart At (Jamie Cullum)

(more…)

Read and Write JPEG Exif Using the javax.imageio.metadata package.

September 6, 2007

The javax.imageio.metadata package contains classes and interfaces for accessing metadata. Here’s a snippet of code that illustrates how the image metadata is preserved.

 

 // Set the input stream.reader.setInput(new FileImageInputStream(new File(inputFileName)));

// Get the image metadata.
IIOMetadata imageMetadata = reader.getImageMetadata(0);

// Read the image.
RenderedImage image = reader.read(0);

// Set the output stream.
writer.setOutput(new FileImageOutputStream(new         File(outputFileName)));

// Write the image.
writer.write(null, new IIOImage(image, null, imageMetadata),  writeParam);

Code posted by Brian Burkhalteon a Java Advanced Imaging Discussion Forum. 

After a few minutes of running the code on your stock of images, you’ll get to meet these errors:

Exception in thread “main” javax.imageio.IIOException: Missing Huffman code table entry
        at com.sun.imageio.plugins.jpeg.JPEGImageWriter.writeImage(Native Method)
        at com.sun.imageio.plugins.jpeg.JPEGImageWriter.write(JPEGImageWriter.java:971)
        at JPEGIOMetadataExample.main(JPEGIOMetadataExample.java:160) 

Exception in thread “main” javax.imageio.IIOException: JFIF APP0 must be first marker after SOI
        at com.sun.imageio.plugins.jpeg.JPEGMetadata.<init>(JPEGMetadata.java:206)
        at com.sun.imageio.plugins.jpeg.JPEGImageReader.getImageMetadata(JPEGImageReader.java:853)
        at JPEGIOMetadataExample.main(JPEGIOMetadataExample.java:151)

Exception in thread “main” javax.imageio.IIOException: ICC APP2 encountered without prior JFIF!
        at com.sun.imageio.plugins.jpeg.JPEGMetadata.<init>(JPEGMetadata.java:263)
        at com.sun.imageio.plugins.jpeg.JPEGImageReader.getImageMetadata(JPEGImageReader.java:853)
        at JPEGIOMetadataExample.main(JPEGIOMetadataExample.java:151)
 

The Missing Huffman code table entry error can be fixed by passing a parameter of class JPEGImageWriteParam and calling setOptimizeHuffmanTables(true) when writing it to disk.

 

JPEGImageWriteParam param = new JPEGImageWriteParam(Locale.getDefault());
param.setCompressionQuality(quality);
param.setOptimizeHuffmanTables(true);

Regarding the other 2, I got this from one of the forums:  

You must be using the Java SE JPEG reader which has this known problem…

… 

The JAI Image I/O Tools JPEG reader does not have this problem as far as we
know so you might try that:

https://jai-imageio.dev.java.net

Brian