Unable to use TIFF images in PowerPoint slides

[whalen-enterprises]

Sikuli Slides 1.5 is unable to process TIFF images (screenshots) used in a PowerPoint file. On MacOS TIFF is the default image type output by the screen capture program Grab. When using these screenshots in a PowerPoint Sikuli Slides is unable to process the image and fails with the following exception:

$ java -jar sikuli-slides-1.5.0_macosx-x86_64.jar execute /Users/Test/Desktop/sikuli_website.pptx
0 [main] DEBUG org.sikuli.slides.api.Slides - execute slides with context Context{minScore=0.7, parameter={}, screenRegion=DesktopScreenRegion{screen=DesktopScreen{id=0}, x=0, y=0, width=1440, height=900, score=0.0}}
184 [main] DEBUG org.sikuli.slides.api.io.PPTXSlidesReader - PPTX bundle created: PPTXBundle{count=2, rootDir=/var/folders/5c/3_9vsdqs179cvs7twjbw21xc0000gn/T/1411635570186-0/sikuli_website}
400 [main] DEBUG org.sikuli.slides.api.parsers.SlideParser - result: Slide{number=0, text=Browse slides.sikuli.org, elements=[SlideElement{id=3, text=Browse slides.sikuli.org, offx=2098842, offy=3221789, cx=4866105, cy=762000, width=0, height=0, name=Rectangle 2, geom=rect, fontSize=0, order=0, lineColor=null, backgroundColor=null}]}
411 [main] DEBUG org.sikuli.slides.api.parsers.SlideParser - result: Slide{number=0, text=click, elements=[ImageElement{sourceUrl=null, fileName=/var/folders/5c/3_9vsdqs179cvs7twjbw21xc0000gn/T/1411635570186-0/sikuli_website/ppt/slides/../media/image1.tiff, super=SlideElement{id=4, text=null, offx=0, offy=736600, cx=9144000, cy=5363688, width=0, height=0, name=Picture 3, geom=rect, fontSize=0, order=0, lineColor=null, backgroundColor=null}}, SlideElement{id=5, text=, offx=6015789, offy=1791368, cx=1229895, cy=401053, width=0, height=0, name=Rectangle 4, geom=rect, fontSize=0, order=0, lineColor=null, backgroundColor=null}, SlideElement{id=6, text=click, offx=3435684, offy=1791368, cx=1657684, cy=401053, width=0, height=0, name=Rectangle 5, geom=rect, fontSize=0, order=0, lineColor=null, backgroundColor=null}]}
412 [main] TRACE org.sikuli.slides.api.AutomationExecutor - Execute 2 slide(s)
413 [main] INFO org.sikuli.slides.api.AutomationExecutor - Execute slide 1 of 2
484 [main] DEBUG org.sikuli.slides.api.interpreters.DefaultInterpreter - result:ParallelAction{actions=[SleepAction{duration=5000}, RetryAction{child=LabelAction{text=Browse slides.sikuli.org}}]}
490 [Thread-2] TRACE org.sikuli.slides.api.actions.LabelAction - executed.
5488 [main] TRACE org.sikuli.slides.api.actions.LabelAction - stopped.
5490 [main] INFO org.sikuli.slides.api.AutomationExecutor - Execute slide 2 of 2
5563 [main] DEBUG org.sikuli.slides.api.interpreters.DefaultInterpreter - result:ParallelAction{actions=[RetryAction{child=TargetAction{target=ContextImageTarget{image=file:/var/folders/5c/3_9vsdqs179cvs7twjbw21xc0000gn/T/1411635570186-0/sikuli_website/ppt/slides/../media/image1.tiff, x=(0.66,0.79), y=(0.20,0.27)}}}]}
Exception in thread "Thread-4" java.lang.NullPointerException
at org.sikuli.slides.api.sikuli.ContextImageTarget.getTargetBounds(ContextImageTarget.java:105)
at org.sikuli.slides.api.sikuli.ContextImageTarget.doFindAll(ContextImageTarget.java:121)
at org.sikuli.api.DefaultScreenRegion._find(DefaultScreenRegion.java:88)
at org.sikuli.api.DefaultScreenRegion.find(DefaultScreenRegion.java:80)
at org.sikuli.slides.api.actions.TargetAction.execute(TargetAction.java:26)
at org.sikuli.slides.api.actions.RetryAction.execute(RetryAction.java:51)
at org.sikuli.slides.api.actions.ParallelAction$Worker.run(ParallelAction.java:35)
at java.lang.Thread.run(Thread.java:724)