Dear all, I'm very sorry for my misunderstand of FolderOpener. It seems that FolderOpener calculates the image-size by FileInfo.getBytesPerPixels() and gives it (FileInfo) to FileInfoVirtualStack, which calculates image-size (bytesPerImage) again correctly to find next image position as follows,
bytesPerImage = (int)(1.25*fi.width)*fi.height; info[i].longOffset = fi.getOffset() + i*(bytesPerImage + fi.getGap()); This means no problem at all in FolderOpener. I apologize to all of you again. And thanks to Basheer and Crutis for your information. Best regards Hidenao -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html
