private String getExifData(ImagePlus imp) { FileInfo fi = imp.getOriginalFileInfo(); if (fi == null) return null; String directory = fi.directory; String name = fi.fileName; if (directory == null) return null; if ((name == null || name.equals("")) && imp.getStack().isVirtual()) name = imp.getStack().getSliceLabel(imp.getCurrentSlice()); if (name == null || !(name.endsWith("jpg") || name.endsWith("JPG"))) return null; String path = directory + name; String metadata = null; try { Class c = IJ.getClassLoader().loadClass("Exif_Reader"); if (c == null) return null; String methodName = "getMetadata"; Class[] argClasses = new Class[1]; argClasses[0] = methodName.getClass(); Method m = c.getMethod("getMetadata", argClasses); Object[] args = new Object[1]; args[0] = path; Object obj = m.invoke(null, args); metadata = obj != null ? obj.toString() : null; } catch (Exception e) { return null; } if (metadata != null && !metadata.startsWith("Error:")) return metadata; else return null; }