CODEWITHSUNDEEP
javatiffjavax.imageiojai
Kyle Gregorio
Kyle Gregorio

Reputation: 41

Reading TIFF image from file using BufferedImage and JAI

I'm trying to read a TIFF image from file using BufferedImage. The following is my code:

String filename = "/image/parrot.tiff";
File f = new File (filename);
try{
        BufferedImage img = ImageIO.read(f);
}catch (Exception e){
        System.out.println("Something went wrong!");
}

But it isn't working. I have a method called testInput just to test if the file was read properly:

public void testInput(){
    System.out.println(f.exists());
    System.out.println(f.canRead());
    System.out.println(f.canWrite());
}*/

The three of them would always return "false" and the above code always returns "Something went wrong!". I already added JAI ImageIO for the plug-in to read TIFF image. Any idea what seems to be the problem?

Upvotes: 2

Views: 12394

Answers (3)

Ted
Ted

Reputation: 3260

It also matters what format of tif is used. Even with the JAI plug-in, only some forms of tiff are supported. For instance, when I downloaded a bluemarble.tif image, deep in the inner workings I got:

Caused by: java.lang.RuntimeException: Planar (band-sequential) format TIFF is not supported.

So certain tif file formats are not supported without the help of specialized libraries. One of those libraries is GDAL. http://gdal.org/java/ However many of the support libraries will require native code, and may not work in a portable purely java context.

Upvotes: 1

plinth
plinth

Reputation: 49179

You need to make sure that you actually have JAI at the ready. JAI is a plug-in extension to ImageIO and if it's not there then you can't decode TIFFs. Here's a quick unit test:

@Test
public void canGetTiffDecoder()
{
    Iterator<ImageReader> reader = ImageIO.getImageReadersByFormatName("TIFF");
    assertNotNull(reader);
    assertTrue("No tiff decoder", reader.hasNext());
}

Upvotes: 5

Agemen
Agemen

Reputation: 1535

It may seem silly, but are you sure your file is placed in 

/image/parrot.tiff

?

According to the Javadoc, exists() returns :

true if and only if the file or directory denoted by this abstract pathname exists; false otherwise

So I think the path may be wrong. According to your comment, I think the correct path should be

src/image/parrot.tiff

If it isn't, try

src/image/parrot.tiff

In all cases, you must understand better how file path are managed in Java (and in most other languages) ;-)

Upvotes: 2

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