Local Feature Extractor - ImageMiner-1.4.1

Question

I am experimenting with the ImageMiner-1.4.1 extension.  The Local Feature Extractor is a container for embedded processes.  When placing local feature processes within it (for example the Autocovariance local feature extractor) I get the following error:

ExpectedImagePlusGSIOObject but received ImagePlusBaseIOObject.

It seems that the Local Feature Extractor container is delivering this "Image Plus Base IO" object to the nested processes, but I can't seem to find any process that will accept that object.  I am probably missing something obvious here but I can't figure out what it is.  Any help on the usage of the Local Feature Extractor container object is appreciated.

By the way, I downloaded a process from MyExperiment that uses the Local Feature Extractor container and I am getting the same errors on it.

Thanks.

Legacy User · Answer

To add to my previous comment, I think that indeed maybe there has been some kind of change between the versions.
Check this workflow http://www.myexperiment.org/workflows/2324.html.
When I use this workflow on my 1.4.1 Image Mining Extension I get the same problem: "Expected ImagePlusGSIOObject but received ImagePlusBaseIOObject."

Legacy User · Answer

Hello guys I have the same problem and I don't understand the cause. Could this be a problem of the extension? I convert my images to grayscale. This is the workflow I am using. p.s.: i didn't think it is good to create a new topic, since this is till open and i face the exact same issue.

StaryVena · Answer

Hi,
I think problem is that The Local Feature Extractor uses gray scale images and your images are colored.

Best,
Václav