I am having trouble processing an image through the Unsupervised KMeans image classification in the OTB Toolbox of QGIS 2.4. I have a .tif image in the Input Image box and keep all the defaults.
When I run it, this error immediately shows up:
"Algorithm Unsupervised KMeans image classification starting... unsupported operand type(s) for +: 'NoneType' and 'str' See log for more details"
I have tried increasing the available RAM (Mb) option as well as saving the Output Image in a file rather than a temp. I am relatively new to QGIS so I apologize if I have overlooked anything simple. Can anyone shed light on this problem for me?