Hi, More of a question than a request: Rather long ago I used an image analysis tool called Image Pro which had a rather large set of measurements that could be applied to identified objects. So a possible scenario there could be something like: * Grab image * Segment objects from background * Measure objects * Filter out only objects with a size between 1.5 and 3.3 mm^2 (or relevant pixel measurement) and a roundness (defined in terms of length of object's periphery vs periphery of a circle with same area) over 0.85 * ...and further processing on matching objects Other measurements included for example major and minor axis direction and length, average greyscale value etc etc Could something like this, ie a more comprehensive set of measurements be valuable for skimage users? Regards /Anders On 6 dec 2011, at 01:51, Stéfan van der Walt wrote:
Hi all,
With 0.4 (and 0.4.1, 0.4.2) out the door, we can start setting priorities for 0.5.
Personally, I'd like to see
- An expansion of the user guide - Completion of the Debian packaging - Object convex hulls and - Graph cut segmentation and/or tri-mapping
Feel free to weigh in with your own suggestions, then we'll come to an agreement on the best way forward.
Regards Stéfan
Hi Anders
On Wed, Dec 7, 2011 at 2:41 PM, Anders Klint
Rather long ago I used an image analysis tool called Image Pro which had a rather large set of measurements that could be applied to identified objects. So a possible scenario there could be something like: * Grab image * Segment objects from background * Measure objects * Filter out only objects with a size between 1.5 and 3.3 mm^2 (or relevant pixel measurement) and a roundness (defined in terms of length of object's periphery vs periphery of a circle with same area) over 0.85 * ...and further processing on matching objects
This process is very much like the one described in my EuroScipy tutorial (http://mentat.za.net/euroscipy2011/intro_notes.tar.gz) and the User Guide tutorial Emmanuelle submitted as a pull request today (https://github.com/scikits-image/scikits-image/pull/93). That details the basic process. As for the different measures, I think we could benefit from having some of those grouped together. Things like getting the area (after labelling is trivial), but computing circularity etc. can get more interesting. Do you know of a good list of such desired measurements? Maybe also have a look at the MATLAB docs online to see what they provide as a point of reference. Regards Stéfan
participants (2)
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Anders Klint
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Stéfan van der Walt