On Fri, Jul 11, 2014 at 4:18 AM, Payal Prajapati < [email protected]> wrote:
> Hello to all, > > My work is I have a series of 48 .h5 files(one file contains 6 > subdatasets..6 images of same area is taken w.r.t different bands and > packed into .h5 file.file is generated each half an hour.file name is > like:3DIMG_12oct2013_0040_L1S_STD.h5) for each day taken by Imager > satellite.I have to open all 48 files and extract a single band which is > needed for analysis. > > currently i am trying to open one .h5 file of Imager and extract first > band by specifying hdf filename:0 as mentioned in user guide.but it gives > me error unable to create I/O object for hdf Filename:0. > could you post the exact command line and the error message? > I have enabled hdf 5 support in gdal.After googling i found that changeset > 0000219 supports HDF subdataset reading as mentioned by julien...but it > still give the same error . > plz provide a solution. > > I have created a program using gdal APIS for reading subdataset but it > gives me array of pixel instead of image..so i am reading array into image > using otbImportImageFilter and tthen write it in to .tiff file format.This > takes so much time and as i said i have 48 .h5 file..if i am doing the same > process for all 48 files response time is too large..so i want otb to > handle this.. > If you are using gdal to read image into array and the writing array into otbImage object, you are definitely not going right way. OTB can read GDAL formats and in your case i think you might have something like "Performing Test CHECK_HDF4OPEN_SYMBOL - Failed" during your cmake configure. Could you confirm this? also tell if there is a way to parallelize the whole process that is 48 > different processes running in parallel for different 48 file format or > something like this.so task is speedy.. > Thank you in advance..any help would be appreciated. > > Thank You, > Payal > > -- > -- > Check the OTB FAQ at > http://www.orfeo-toolbox.org/FAQ.html > > You received this message because you are subscribed to the Google > Groups "otb-users" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/otb-users?hl=en > --- > You received this message because you are subscribed to the Google Groups > "otb-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- Regards, Rashad -- -- Check the OTB FAQ at http://www.orfeo-toolbox.org/FAQ.html You received this message because you are subscribed to the Google Groups "otb-users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/otb-users?hl=en --- You received this message because you are subscribed to the Google Groups "otb-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
