Cannot open a GeoTiff image that includes a color table

snap
#1

Hello,

It’s not really an issue for me (since QGIS can read this kind of images normally), just wanted to point out this issue.

So, I’ve got a GeoTiff image with a color table (the slope of a DEM) which was generated from a DEM using GrassGIS. And to be able to save the color table with this image in GrassGIS, the image had to be exported as a UInt16. When I try to open the resulting image with SNAP, I get the following error:

java.lang.IllegalArgumentException: intMap: keyRange > Short.MAX_VALUE
	at org.esa.snap.core.image.ImageManager.createIndexedImage(ImageManager.java:575)
	at org.esa.snap.core.image.ImageManager.createByteIndexedImage(ImageManager.java:469)
	at org.esa.snap.core.image.ImageManager.createColored1BandImage(ImageManager.java:292)
	at org.esa.snap.core.image.ImageManager.createColoredBandImage(ImageManager.java:278)
	at org.esa.snap.core.image.ColoredBandImageMultiLevelSource.createImage(ColoredBandImageMultiLevelSource.java:76)
	at com.bc.ceres.glevel.support.AbstractMultiLevelSource.getImage(AbstractMultiLevelSource.java:65)
	at com.bc.ceres.glayer.support.ImageLayer.getImage(ImageLayer.java:172)
	at org.esa.snap.ui.product.ProductSceneView.isPixelPosValid(ProductSceneView.java:1252)
	at org.esa.snap.ui.product.ProductSceneView.firePixelPosChanged(ProductSceneView.java:1258)
	at org.esa.snap.ui.product.ProductSceneView.setPixelPos(ProductSceneView.java:1298)
	at org.esa.snap.ui.product.ProductSceneView.access$600(ProductSceneView.java:127)
	at org.esa.snap.ui.product.ProductSceneView$LayerCanvasMouseHandler.updatePixelPos(ProductSceneView.java:1398)
	at org.esa.snap.ui.product.ProductSceneView$LayerCanvasMouseHandler.mouseMoved(ProductSceneView.java:1379)
	at java.awt.AWTEventMulticaster.mouseMoved(Unknown Source)
	at java.awt.Component.processMouseMotionEvent(Unknown Source)
	at javax.swing.JComponent.processMouseMotionEvent(Unknown Source)
	at java.awt.Component.processEvent(Unknown Source)
	at java.awt.Container.processEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$500(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
[catch] at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)
#2

You have reported it before:

Or is this issue different from the other?

#3

Indeed, according to the error message both errors are the same (I didn’t notice), and both happened for images that were exported from GrassGIS.
Now that I think about both products, there is not really a difference between both regarding the format (INT). Although, for the product in this topic (the slope of the DEM), I’ve explicitely exported it as a UINT16 so that the color table is included. For the other product (the shadow), apparently since it’s just integer values by default (i.e. a mask), maybe it addded the color table as well.