iTextSharp.text.pdf.codec.TiffImage.ProcessExtraSamples C# (CSharp) Метод

        static Image ProcessExtraSamples(ZDeflaterOutputStream zip, ZDeflaterOutputStream mzip, byte[] outBuf, int samplePerPixel, int bitsPerSample, int width, int height)
        {
            if (bitsPerSample == 8) {
                byte[] mask = new byte[width * height];
                int mptr = 0;
                int optr = 0;
                int total = width * height * samplePerPixel;
                for (int k = 0; k < total; k += samplePerPixel) {
                    for (int s = 0; s < samplePerPixel - 1; ++s) {
                        outBuf[optr++] = outBuf[k + s];
                    }
                    mask[mptr++] = outBuf[k + samplePerPixel - 1];
                }
                zip.Write(outBuf, 0, optr);
                mzip.Write(mask, 0, mptr);
            }
            else
                throw new ArgumentException(MessageLocalization.GetComposedMessage("extra.samples.are.not.supported"));
            return null;
        }