OutofMemory while reading JPEG file Using IMAGEIO

[Mihir K Parekh]

Hello All

I am reading an Jpeg file using following snippets

BufferedImage img = ImageIO.read(f);

the file i try to read is 6480 and 4320 in dimension and just 2.34 MB in size. my heap size is 1024 MB.and i want to read file even larger in size say 25 - 30 mb and 10,000 * 12,000 in dimensions. then what all experts suggest me to accomplish my goal

getting following exception

Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
	at java.awt.image.DataBufferByte.<init>(DataBufferByte.java:58)
	at java.awt.image.ComponentSampleModel.createDataBuffer(ComponentSampleModel.java:397)
	at java.awt.image.Raster.createWritableRaster(Raster.java:938)
	at javax.imageio.ImageTypeSpecifier.createBufferedImage(ImageTypeSpecifier.java:1056)
	at javax.imageio.ImageReader.getDestination(ImageReader.java:2879)
	at com.sun.imageio.plugins.jpeg.JPEGImageReader.readInternal(JPEGImageReader.java:943)
	at com.sun.imageio.plugins.jpeg.JPEGImageReader.read(JPEGImageReader.java:915)
	at javax.imageio.ImageIO.read(ImageIO.java:1422)
	at javax.imageio.ImageIO.read(ImageIO.java:1282)
	at com.mmg.app.gui.ImageGalleryContainer$1.actionPerformed(ImageGalleryContainer.java:104)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
	at java.awt.Component.processMouseEvent(Component.java:6216)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
	at java.awt.Component.processEvent(Component.java:5981)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4583)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4413)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4556)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4220)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4150)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2475)
	at java.awt.Component.dispatchEvent(Component.java:4413)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)

[Ulf Dittmer]

JPEG compresses images well. But in memory, a BufferedImage generally needs 4 bytes for each pixel just for the raw data, so that would be 6480 * 4320 * 4 = 112 MB, regardless of how big the file is.

With a 1024MB heap, that should still fit, though, unless there's tons of other stuff that can't be GC-ed. What's the command you use to start the JVM? Post all the options.

Have you tried allocating 2GB instead of 1GB?

[Mihir K Parekh]

Hello

thank you for your reply.i am using eclipse latest version. and i do understand your point of BufferedImage uncompressed size calculation. is there any other way to load big jpeg images into my application ? like BigDecimal in java is there any other option for large image file ?

Thank You
Mihir Parekh

[Ulf Dittmer]

Try running your code outside of the IDE; who knows what that does to the memory settings. And then post here the command line arguments you used to start the JVM.

[Mihir K Parekh]

Hello

when i run my code out of ide it works fine.

my myeclipse.ini is

-startup
../Common/plugins/org.eclipse.equinox.launcher_1.0.201.R35x_v20090715.jar
--launcher.library
../Common/plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.0.200.v20090519
-install
C:/Program Files/Genuitec/MyEclipse-8.6
-vm
C:/Program Files/Genuitec/Common/binary/com.sun.java.jdk.win32.x86_1.6.0.013/jre/bin/client/jvm.dll
-configuration
configuration
-vmargs
-Xmx1024m
-XX:MaxPermSize=256m
-XX:ReservedCodeCacheSize=128m


so why can i run same code with no error outside of IDE ?

Thank You
Mihir Parekh

[Ulf Dittmer]

Because of this:

Ulf Dittmer wrote:... who knows what that does to the memory settings.

IDEs are memory hogs; Eclipse probably needs 256MB or more just for itself.

For running the code in Eclipse; dig into the Eclipse settings to find out where you can set the JVM parameters for child processes - giving those 1 GB is unlikely to be the default, so as long as you don't change those values you'll run into trouble.