Himanshu Singh wrote: > Hi Nikos, Hi :-) Nikos: >> "Only Windows support for this extension (right?)."
> The extension will compile and work in Linux 64-bit too. I can send you the > build instructions if you have a 64-bit Linux machine. I hesitated to try since I have limited time ahead (deadlines pushing). I will try and let you know. >> "Does anyone has any examples (from the past)?" > A sample input file used to run the program: > http://www.cs.umd.edu/~mount/Projects/ISODATA/input.txt. Yes, I got it. I use the following for my quick-test on an PCIDSK image (gdal_translate was handy here) -- not clear to me, however, whether other formats are supported (Byte only). [ Note: a test on a large image froze linux -- I don't remember when I saw a linuxbox frozen, well, almost... I managed to get out with Ctrl + Shift + Alt + PrntScrn + R - E - I - S - U - B ] --%<--- NUMCLUS 10 # initial number of clusters NUMBANDS 1 # number of bands, note that it is # necessary to have this appear before # 'input_images' directive SAMPRM 200 # minimum number of samples in a cluster LUMP 0.001 # lumping parameter # (clusters which are closer than this # distance to each other are merged) MAXPAIR 5 # maximum number of pairs to lump MAXITER 20 # maximum number of iterations rows 495 # number of image rows cols 743 # number of image columns # (size of image should be (rows x cols) # and the image is expected to be in # byte format (1 char per pixel)) input_images ndvi_difference_utm_z34_smallarea.pci # name of the files each containing # one band/channel of the image. There # should be NUMBANDS filenames after # `input_images' directive. Specified # files need to be resided in the same # directory as the executable being run. output ndvi_difference_utm_z34_smallarea_clustered # name of the output file to write the # clustered image to. Pixels are assigned # values 1, 2, ..., (no. of clusters), # where points having the same number # are in the same cluster seed 10 # seed for the `rand' function for # selecting initial centers randomly #gen_data_pts # if this directive is given it means # that the user is asking for # synthetically generated data, and thus # there won't be any need to specify # `input_images' and `output' directives. sample_seed 51 # seed used for `rand' function to sample # subset of data to work with SQUARED 1 # This is specified if/when you want to # run the Hyb version of the algorithm. # This metric is built in for Filtering # and Approximate Filtering version and # is used to Distinguish between Standard # and Hybrid version since they share the # same executable. #epsilon 0.5 # This directive is defined for approximate # filtering version only and specifies the # epsilon value to be used. --->%-- > Thanks, > Himanshu Thank you for your time. Nikos -- > PS: I just noticed that I misspelled your name in the last email. Sorry > about that. :-) It was very close actually -- Nikolaos, it is formally in Greek :-) _______________________________________________ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
