hi again i tried with dcm2pnm before and it worked for all images with ¨-ob¨ option on it. Then I run this code to to check what you told me before: const String s="c:\chest" ; DcmFileFormat dcm; DicomImage *image=new DicomImage(s.c_str()); OFCondition cond=dcm.loadFile(s.c_str()); Edit1-...