My aim is to reduce the dicom file size to great extend with compression. Pour la protection de vos fichiers, le logiciel utilise un cryptage CZIP pour lutter contre les accès non autorisés. Précisons que son chiffrement de fichier est de 128 bits. So if i am saving it to some value between 0-255, am i doing correct for JPEG lossless or not? Zip Genious peut également vous servir à convertir une image de CD en fichier ISO, ou d’un fichier ISO en image CD. I read in the forum for JPEG lossless the quality factor should be 0. Just want to be clear if i am setting the parameter correctly for ChangeTransferSyntax and Save methods here? I able to compress the file with jpeg lossless format with above code and can view the compressed file using a viewer. Where CompressionQuality = compression quality (0-255) M_DS.ChangeTransferSyntax(14,CompressionQuality, ) I tried to implement the same logic for dicom JPEGlossless compression. I believe it will work for all compressed dicom files as well? Now I can decompress a JPEGLossless file. with what saving option can i save my output file for DICOM rawĬodecs.Save(image, destRawDicomFilename, RasterImageFormat.Raw, 24) Options.TiffPhotometricInterpretation = CodecsTiffPhotometricInterpretation.Rgb // do i need this line as it is for tiff file format?Ģ. Options.YResolution = imageInfo.YResolution Options.XResolution = imageInfo.XResolution Options.LoadOrder = CodecsLoadByteOrder.BgrOrGray // specially this one Options.ViewPerspective = imageInfo.ViewPerspective Options.BitsPerPixel = imageInfo.BitsPerPixel ('s always a good idea to create a System. The freeware IrfanView has a resample option if you would like to try it. instead of resize the result may be slightly better but will never be as. Options.Format = RasterImageFormat.RawPackBits // specially this one If you enlarge them with software that has a resample option. Options.DataType = CodecsStartDecompressDataType.Strips What will be the values for Raw dicom for the following bold onesĬodecsStartDecompressOptions options = CodecsStartDecompressOptions.Empty how do i call the M圜odecsCompressDatacallBack method. what is the CodecsCompression in the following lineģ. what will be the following line specialythe bold onesĬ.CmpQualityFactorPredefined = CodecsCmpQualityFactorPredefined.QualityAndSize Ģ. I tried the above code however there are some parameters which i am not sure about JPEGġ. ((Object,Byte,Int32,Int32,Int32,Int32,Int32,Int32,CodecsDecompressDataFlags).html) I saw some example for using StartCompress, Compress, StopCompress for CompressionĪnd StartDecompress, Decompress, StopDecompress for Decompression of Tiff file Thus a raw dicom file compressed is just any raw filw with changed tranfer syntax file. However this method does not compress any file in pixel. I tried to used the method ChangeTransferSyntax which only changes the any transfered syntax to desired one. decompress different Compressed DICOM files (such as JPEGLossless, JPEGlossy, JPEG2000, JPEG2000 losses, RLE etc.) 1.compress a DICOM raw filw to JPEG lossless andĢ.
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