base64编码的文本转为图片中jpeg保存为白色背景问题

玉墨言 2017-08-31 06:09:36
问题出现原因，jpeg不支持透明背景，那么我就想改为白色背景，但是现实是试过很多种方法都不行
源码
        /// <summary>

        /// base64编码的文本 转为    图片

        /// </summary>

        /// <param name="txtFileName"> base64编码</param>

        /// <param name="layout">图片格式 支持 jpg|bmp|gif|png</param>

        ///  <param name="ImgUrl">保存的图片路径</param>

        public bool Base64StringToImg(string Imgbase64, string layout, string ImgUrl)

        {

            //try

            //{

                //FileStream ifs = new FileStream(Imgbase64, FileMode.Open, FileAccess.Read);

                //StreamReader sr = new StreamReader(ifs);

                //String inputStr = sr.ReadToEnd();



                byte[] arr = Convert.FromBase64String(Imgbase64.Split(',')[1]);

                MemoryStream ms = new MemoryStream(arr);

                Bitmap bmp = new Bitmap(ms);

                if (layout.ToLower() == "jpg")

                {

                    bmp.Save(ImgUrl + ".jpg",ImageFormat.Jpeg);

                }

                else if (layout.ToLower() == "jpeg")

                {

                    //图片标准压缩格式

                    bmp.Save(ImgUrl + ".jpeg", ImageFormat.Jpeg);

                }

                else if (layout.ToLower() == "bmp")

                {

                    //保存的图片格式需支持透明

                    bmp.MakeTransparent();

                    bmp.Save(ImgUrl + ".bmp", ImageFormat.Bmp);

                }

                else if (layout.ToLower() == "gif")

                {

                    //保存的图片格式需支持透明

                    bmp.MakeTransparent();

                    bmp.Save(ImgUrl + ".gif", ImageFormat.Gif);

                }

                else if (layout.ToLower() == "png")

                {

                    //保存的图片格式需支持透明

                    bmp.MakeTransparent();

                    //便携式网络图形(无损压缩的位图图形格式)

                    bmp.Save(ImgUrl + ".png",ImageFormat.Png);

                }

               

                ms.Close();

                //sr.Close();

                //ifs.Close();



                if (File.Exists(Imgbase64))

                {

                    File.Delete(Imgbase64);

                }

                return true;

                //MessageBox.Show("转换成功！");

            //}

            //catch (Exception)

            //{

            //    return false;

            //}



        }

试过的方法1：
        public Bitmap PTransparentAdjust(Bitmap src)

        {

            try

            {

                int w = src.Width;

                int h = src.Height;

                Bitmap dstBitmap = new Bitmap(src.Width, src.Height, PixelFormat.Format32bppArgb);

                BitmapData srcData = src.LockBits(new Rectangle(0, 0, w, h), ImageLockMode.ReadOnly,PixelFormat.Format32bppArgb);

                BitmapData dstData = dstBitmap.LockBits(new Rectangle(0, 0, w, h),ImageLockMode.WriteOnly,PixelFormat.Format32bppArgb);

                unsafe

                {

                    byte* pIn = (byte*)srcData.Scan0.ToPointer();

                    byte* pOut = (byte*)dstData.Scan0.ToPointer();

                    byte* p;

                    int stride = srcData.Stride;

                    int r, g, b, a;

                    for (int y = 0; y < h; y++)

                    {

                        for (int x = 0; x < w; x++)

                        {

                            p = pIn;

                            b = pIn[0];

                            g = pIn[1];

                            r = pIn[2];

                            a = pIn[3];

                            if (a == 0)

                            {

                                pOut[1] = (byte)255;

                                pOut[2] = (byte)255;

                                pOut[3] = (byte)255;

                                pOut[0] = (byte)255;

                            }

                            else

                            {

                                pOut[1] = (byte)g;

                                pOut[2] = (byte)r;

                                pOut[3] = (byte)a;

                                pOut[0] = (byte)b;

                            }

                            pIn += 4;

                            pOut += 4;

                        }

                        pIn += srcData.Stride - w * 4;

                        pOut += srcData.Stride - w * 4;

                    }

                    src.UnlockBits(srcData);

                    dstBitmap.UnlockBits(dstData);

                    return dstBitmap;

                }

            }

            catch (Exception e)

            {

                return null;

            }



        }


方法二：
                     //        Image img = Image.FromStream(ms, true);

                     //int width = img.Width;

                     //int height = img.Height;

                     //var x = img.HorizontalResolution;

                     //var y = img.VerticalResolution;

                     //var tempHeight = height * 300 / y;

                     //var tempWidth = width * 300 / y;



                     //Bitmap bmpTemp = new Bitmap((int)tempWidth, (int)tempHeight);

                     //Graphics g = Graphics.FromImage(bmpTemp);

                     //g.SmoothingMode = SmoothingMode.AntiAlias;

                     //g.Clear(Color.Red);

                     //g.DrawImage(img, new RectangleF(0, 0, tempWidth, tempHeight),

                     //    new RectangleF(0, 0, width, height), GraphicsUnit.Pixel);

                     //g.Save();



                     //bmpTemp.Save(ImgUrl + ".jpeg", ImageFormat.Jpeg);

                     //g.Dispose();

                     //img.Dispose();

                     //bmpTemp.Dispose();

结果都不行
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玉墨言 2017-09-01
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引用 19 楼 xuzuning 的回复:
哦，你是要去除那个 jpg 的黑色背景
             var c = (ims as Bitmap).GetPixel(0, 0).GetBrightness()+0.1f;

            for (var x = 0; x < ims.Width; x++)

            {

                for (var y = 0; y < ims.Height; y++)

                {

                    if ((ims as Bitmap).GetPixel(x, y).GetBrightness() <= c) (ims as Bitmap).SetPixel(x, y, Color.White);

                }

            }

对的 
                    Image img = Image.FromStream(ms, true);

                    var c = (img as Bitmap).GetPixel(0, 0).GetBrightness() + 0.1f;

                    for (var x = 0; x < img.Width; x++)

                    {

                        for (var y = 0; y < img.Height; y++)

                        {

                            if ((img as Bitmap).GetPixel(x, y).GetBrightness() <= c)

                                (img as Bitmap).SetPixel(x, y, Color.White);

                        }

                    }

                    img.Save(ImgUrl + ".jpeg", ImageFormat.Jpeg);

但是还是有点问题，有点的图片会变成纯白的 ，比如

data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAMCAgMCAgMDAwMEAwMEBQgFBQQEBQoHBwYIDAoMDAsKCwsNDhIQDQ4RDgsLEBYQERMUFRUVDA8XGBYUGBIUFRT/2wBDAQMEBAUEBQkFBQkUDQsNFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBT/wAARCABeAF4DASIAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uHi4+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEAAwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6wsPExcbHyMnK0tPU1dbX2Nna4uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwDU/wCCX/7Znxi/aJ+Puv8Ahv4heMP+Eg0W18M3GoQ239mWdttnW6tI1fdDCjHCyyDBOPm6ZAx91fHT9lz4YftKf2J/wsfwz/wkf9i+f9g/0+6tfJ87y/N/1Eqbs+VH97ONvGMnPy//AMFC/ghffDX4L6Lqf7OngG48K+NpfEENteXnwv0ZrPUn0821y0kcj2SLIYDKluSpO3csZPIWuK/4JvfFjxx8L/8AhYn/AA0v4y8QeEvt39nf8I//AMLX1Sey+0bPtX2r7J9udd23fb+Z5ecbot3VaAPAP2o/2o/if+xd8dvE3wa+DXib/hDvht4a+y/2Von2C1vvs32i1iupv311FLM+6a4lf53ON2BhQAPir/haXif/AIWn/wALH/tP/is/7a/4SH+0/s8X/H/5/n+d5W3y/wDW/Nt27e2McV9Vft6/Cfxx8cf2sfHPjb4ceDfEHxA8Gap9h+weI/C2lz6lp135dhbwy+VcQI8b7JY5I22scMjKcEEV+mnwQ/Zk+D2gfs2+AdT8dfCjwPp2pWXhLT7nXbzxD4cs4poJUs42uZLp5owVZWDl2kIIIYt3oA+IP2Cv29fjt8af2sfA3g3xl45/tnw3qX277XZf2RYQeZ5dhcSp88UCuMPGh4YZxg8Eiv0q+On7Lnww/aU/sT/hY/hn/hI/7F8/7B/p91a+T53l+b/qJU3Z8qP72cbeMZOflX9qP/hSH/CifE3/AAzj/wAK/wD+Fz/6L/YP/CrfsP8AwkX/AB9Rfafsv2H/AEj/AI9vtG/y/wDll5m75d1fmr46+LH7U/wv+w/8Jl4y+MHhL7dv+yf27qmq2X2jZt3+X5rru270zjONy56igD96fgp8BPAn7O3hW68N/D3Qv+Ef0W6vX1Ca2+2T3O6dkjjZ90zuwysUYwDj5emSc+VeLP8AgnD+zt458Vaz4k1v4efbda1i9m1C+uf7b1GPzp5XMkj7UuAq5ZicKABngAV+IP8Aw1j8b/8AosnxA/8ACovv/jtH/DWPxv8A+iyfED/wqL7/AOO0Acp8Lfil4n+C3jvTPGXg3U/7G8Sab5v2S9+zxT+X5kTxP8kqshykjjlTjORyAa+//wBin4peJ/8Agol8U9V+HH7Qmp/8LA8GaXosviG00z7PFpvlX8c8ECTebZLDIcRXU67SxU78kEhSPav2zPCf7Onjn9mzxhonwU0b4X+IPibdfY/7I07wFa6dc6zNtvIHn+zx2oMzYgWZn2DhFcn5Qa/OHwV8EP2mfhrqsup+EPAPxY8K6lLCbaS80TRtTs5niLKxjLxopKlkQ7c4yoPYUAfWn7a3xS8T/wDBO34p6V8OP2e9T/4V/wCDNU0WLxDd6Z9ni1Lzb+SeeB5vNvVmkGYrWBdoYKNmQASxP3/+wV8UvE/xp/ZO8DeMvGWp/wBs+JNS+3fa737PFB5nl39xEnyRKqDCRoOFGcZPJJrwr/gnp8EL74lfBfWtT/aL8A3HirxtF4gmtrO8+KGjNeakmni2tmjjje9RpBAJXuCFB27mkI5LV8Qft6/Fjxx8Dv2sfHPgn4ceMvEHw/8ABml/YfsHhzwtqk+m6daeZYW80vlW8DpGm+WSSRtqjLOzHJJNAH7qV8Af8FW/2XPif+0p/wAKu/4Vx4Z/4SP+xf7U+3/6fa2vk+d9k8r/AF8qbs+VJ93ONvOMjPlX/D87/qif/l1//cVfVX7DH7c//DaP/Cbf8UT/AMId/wAI19h/5i3277T9o+0f9MItm37P753dscgHVfsFfC3xP8Fv2TvA3g3xlpn9jeJNN+3fa7L7RFP5fmX9xKnzxMyHKSIeGOM4PIIrq/2sf+TWPjJ/2Jms/wDpDNXyr+1H/wAFW/8Ahmv47eJvhx/wq7/hI/7F+y/8TP8A4SH7L53nWsU/+q+yvtx5u37xztzxnA8q/wCHrf8Aw1B/xZr/AIVd/wAIz/wsT/ikf7b/AOEh+1/2f9v/ANF+0eT9lj83y/O37N6btuNy5yAD4q/YK+KXhj4LftY+BvGXjLU/7G8N6b9u+13v2eWfy/MsLiJPkiVnOXkQcKcZyeATX0B/wVb/AGo/hh+0p/wq7/hXHib/AISP+xf7U+3/AOgXVr5PnfZPK/18Sbs+VJ93ONvOMjPqv/DjH/qtn/lqf/dtH/DjH/qtn/lqf/dtAH5V0V+qn/DjH/qtn/lqf/dtfmr8WPAv/Cr/AIp+MvBv27+0/wDhHdavdI+2+V5X2j7PO8XmbNzbd2zO3ccZxk9aAPVf2Cvil4Y+C37WPgbxl4y1P+xvDem/bvtd79nln8vzLC4iT5IlZzl5EHCnGcngE1+v/wDw9H/Zi/6Kb/5QNU/+Rq/AGigD9/v+Ho/7MX/RTf8Aygap/wDI1fAH7Uf7LnxP/bR+O3ib4y/Brwz/AMJj8NvEv2X+ytb+32tj9p+z2sVrN+5upYpk2zW8qfOgztyMqQT8AV9//suf8FW/+Ga/gT4Z+HH/AAq7/hI/7F+1f8TP/hIfsvneddSz/wCq+yvtx5u37xztzxnAAPH/APgnp+y/4V/az+NGteEPF+oaxp2m2Xh+bVY5dEmiimMqXNtEFJkikG3bM5xgHIHPUH61+On/ABp8/sT/AIU1/wAVN/wsTz/7V/4Tr/S/I+weX5PkfZfs23d9ul3b9+dqY24O7yr/AIIqf8nT+Kf+xMuv/S6xr1X/AILnf80T/wC43/7YUAfnV8e/jXrn7RPxY134heJLXT7LWtY8j7RBpcbx26+VBHAuxXd2GViUnLHknoOBgfD3xrffDXx/4a8X6ZFbz6loGp22q2sV2rNC8sEqyorhWUlSyAEAg4zgjrX7Pf8ABOH9nr4WeOf2Mfh5rfiT4aeD/EGtXX9o/aNR1TQbW5uJtuo3KLvkeMs2FVVGTwFA6CvSv2m/2ZPg9oH7NvxX1PTPhR4H07UrLwlq1za3lp4cs4poJUs5WSRHWMFWVgCGBBBAIoA/Pb/h9X8b/wDoVvh//wCC6+/+TK+1P+Cb37a3jj9sH/hYn/CZaV4f0z/hHf7O+yf2Fbzxb/tH2rf5nmzSZx5CYxjq2c8Y/Cyv1U/4IY/81s/7gn/t/QB6V/wUL/4KF/EX9kz40aL4Q8IaL4X1HTb3w/Dqskut2tzLMJXubmIqDHcRjbthQ4wTknnoB+QPxC8a33xK8f8AiXxfqcVvBqWv6nc6rdRWissKSzytK6oGZiFDOQASTjGSetf0p+Nfgh8OviVqsWp+L/APhfxVqUUIto7zW9GtryZIgzMIw8iMQoZ3O3OMsT3Nc/8A8MnfBD/ojfw//wDCXsf/AI1QB+dX7Zn/AAS/+Fn7O37NnjD4heG9f8YXutaP9j+zwapeWslu3m3kEDb1S2RjhZWIww5A6jg/mDX7/f8ABUf/AJMT+Jv/AHDP/TpaV+ANAH6E/wDBPT/gnp8Ov2s/gvrXi/xfrXijTtSsvEE2lRxaJdW0UJiS2tpQxElvId26ZxnIGAOOpP1B/wAOVPgh/wBDT8QP/BjY/wDyHR/wRU/5NY8U/wDY53X/AKQ2Nff9AH5K/wDBUD9sz4O/tE/ALQPDfw98Yf8ACQa1a+JrfUJrb+zLy22wLa3cbPumhRThpYxgHPzdMA44D/glJ+1H8MP2a/8AhaP/AAsfxN/wjn9tf2X9g/0C6uvO8n7X5v8AqIn2482P72M7uM4OPgCvf/2Uv2KfHH7YP/CU/wDCG6r4f0z/AIR37L9r/t24ni3/AGjztnl+VDJnHkPnOOq4zzgA/X//AIej/sxf9FN/8oGqf/I1fkB/wtLwx/w31/wsf+0/+KM/4Wb/AMJD/af2eX/jw/tXz/O8rb5n+q+bbt3dsZ4rz/49/BTXP2dvixrvw98SXWn3utaP5H2ifS5Hkt282COddjOiMcLKoOVHIPUcn6g+Hv8AwSJ+MPxK8AeGvF+meJPA8Gm6/pltqtrFd394syRTxLKiuFtGAYK4BAJGc4J60Afo/wD8PR/2Yv8Aopv/AJQNU/8AkavVfgX+1H8MP2lP7b/4Vx4m/wCEj/sXyPt/+gXVr5PneZ5X+viTdnypPu5xt5xkZ/Gv49/8Ev8A4p/s7fCfXfiF4k1/wfe6Lo/kfaINLvLqS4bzZ44F2K9sinDSqTlhwD1PB1f+Cb37a3gf9j7/AIWJ/wAJlpXiDU/+Ei/s77J/YVvBLs+z/at/mebNHjPnpjGejZxxkA6v/gtX/wAnT+Fv+xMtf/S6+r6//Z6/4KPfs7eBvgF8NPDet/EP7FrWj+GdM0++tv7E1GTyZ4rWOORNyW5VsMpGVJBxwSK/OD/goX+1B4V/az+NGi+L/CGn6xp2m2Xh+HSpItbhiimMqXNzKWAjlkG3bMgzkHIPHQn5goA6r4W/C3xP8afHemeDfBumf2z4k1Lzfsll9oig8zy4nlf55WVBhI3PLDOMDkgV9Af8OuP2nf8AomX/AJX9L/8Akmvr/wDYz/4Jf/FP9nb9pPwf8QvEmv8Ag+90XR/tn2iDS7y6kuG82zngXYr2yKcNKpOWHAPU8H7f/ag/ag8K/smeANP8X+L9P1jUdNvdTj0qOLRIYpZhK8UsoYiSWMbdsLjOSckcdSAD+fb41/ATx3+zt4qtfDfxC0L/AIR/WrqyTUIbb7ZBc7oGeSNX3Qu6jLRSDBOfl6YIz+n/AOwV+3r8Cfgt+yd4G8G+MvHP9jeJNN+3fa7L+yL+fy/Mv7iVPnigZDlJEPDHGcHkEV5/8a/gprn/AAVm8VWvxd+EV1p/hzw3otknhS4tfGsj2t491C8l0zotslwhiKXsQBLhtyv8oABPAf8ADlT43/8AQ0/D/wD8GN9/8h0AfAFfqp/wQx/5rZ/3BP8A2/rJ/wCCoH7Gfwd/Z2+AWgeJPh74P/4R/WrrxNb6fNc/2neXO6BrW7kZNs0zqMtFGcgZ+XrgnOt/wQx/5rZ/3BP/AG/oA+Vf+Co//J9nxN/7hn/prtK9q/ZO/wCCoHxT/wCEq+Dfwi/sDwf/AMI39t0bwp9q+x3X2z7Lvhtd+77Ts83ZznZt3fw44r9FPil+wV8CfjT471Pxl4y8Df2z4k1Lyvtd7/a9/B5nlxJEnyRTqgwkaDhRnGTySayvCf8AwTh/Z28DeKtG8SaJ8PPsWtaPew6hY3P9t6jJ5M8TiSN9r3BVsMoOGBBxyCKAMr/gqP8A8mJ/E3/uGf8Ap0tK/AGv3+/4Kj/8mJ/E3/uGf+nS0r4A/wCCUn7Lnww/aU/4Wj/wsfwz/wAJH/Yv9l/YP9PurXyfO+1+b/qJU3Z8qP72cbeMZOQD4Ar9dPgh/wAEifg98Svgv4B8X6n4k8cQalr/AIf0/VbqK0v7NYUlnto5XVA1oxChnIAJJxjJPWvor/h1x+zF/wBEy/8AK/qn/wAk1+avxY/b1+O3wO+KfjL4ceCfHP8AYngzwfrV74e0PTP7IsLj7JYWk7wW8PmywPI+yKNF3OzMcZYkkmgDq/8Ah9X8b/8AoVvh/wD+C6+/+TK8f/ag/wCChfxF/az8Aaf4Q8X6L4X07TbLU49Vjl0S1uYpjKkUsQUmS4kG3bM5xgHIHPUH5gooA+n/ANl//goX8Rf2TPAGoeEPCGi+F9R0291OTVZJdbtbmWYSvFFEVBjuIxt2wocYJyTz0A/Z79jP4165+0T+zZ4P+IXiS10+y1rWPtn2iDS43jt18q8ngXYru7DKxKTljyT0HA/nCr3/AOFv7evx2+C3gTTPBvg3xz/Y3hvTfN+yWX9kWE/l+ZK8r/PLAznLyOeWOM4HAAoA/oJ8a/ELwr8NdKi1Pxf4m0fwrpsswto7zW7+KzheUqzCMPIygsVRztznCk9jX5Qf8FlPix4H+KH/AAqD/hDfGXh/xb9h/tj7X/YWqQXv2ff9i2eZ5Ttt3bHxnGdrY6Gvt/8A4KF/sv8Air9rP4L6L4Q8Iaho+nalZeIIdVkl1uaWKExJbXMRUGOKQ7t0yHGAMA89Afz2/wCHKnxv/wChp+H/AP4Mb7/5DoA+v/8AgnD+0L8LPA37GPw80TxJ8S/B/h/WrX+0ftGnapr1rbXEO7Ubl13xvIGXKsrDI5DA9DX2p/wlmh/8Ir/wk/8AbOn/APCN/Yv7S/tj7Un2P7Ls8z7R52dnlbPn3527ec4r8bP+HKnxv/6Gn4f/APgxvv8A5Dr9Pv8AhSmuf8MX/wDCovtWn/8ACSf8K/8A+EU+1eY/2P7V/Z32Xfu2b/K3852btv8ADnigDW/4ax+CH/RZPh//AOFRY/8Ax2j/AIax+CH/AEWT4f8A/hUWP/x2vyr/AOHKnxv/AOhp+H//AIMb7/5Do/4cqfG//oafh/8A+DG+/wDkOgD9VP8AhrH4If8ARZPh/wD+FRY//HaP+Gsfgh/0WT4f/wDhUWP/AMdr8C/2oP2X/FX7Jnj/AE/wh4v1DR9R1K90yPVY5dEmllhETyyxBSZIozu3QucYIwRz1A+gPh7/AMEifjD8SvAHhrxfpniTwPBpuv6ZbaraxXd/eLMkU8SyorhbRgGCuAQCRnOCetAFr/gnD+z18U/A37Z3w81vxJ8NPGHh/RbX+0ftGo6poN1bW8O7TrlF3yPGFXLMqjJ5LAdTX3B/wV2+Hvir4lfs2+G9M8IeGdY8ValF4ttrmSz0SwlvJkiFneKZCkasQoZ0G7GMsB3Ffb9eP/tQftQeFf2TPAGn+L/F+n6xqOm3upx6VHFokMUswleKWUMRJLGNu2FxnJOSOOpAB+Bn/DJ3xv8A+iN/ED/wl77/AONV+33/AATh8J654G/Yx+HmieJNG1Dw/rVr/aP2jTtUtXtriHdqNy6743AZcqysMjkMD0Ndr+y/+1B4V/az8Aah4v8ACGn6xp2m2WpyaVJFrcMUUxlSKKUsBHLINu2ZBnIOQeOhPj/x7/4KgfCz9nb4sa78PfEmgeML3WtH8j7RPpdnayW7ebBHOuxnuUY4WVQcqOQeo5IB/9k=

不过能出来结果了，我自己再纠结，纠结吧。实在不行就看看别的思路吧，谢谢两位大神
xuzuning 2017-09-01
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哦，你是要去除那个 jpg 的黑色背景
             var c = (ims as Bitmap).GetPixel(0, 0).GetBrightness()+0.1f;

            for (var x = 0; x < ims.Width; x++)

            {

                for (var y = 0; y < ims.Height; y++)

                {

                    if ((ims as Bitmap).GetPixel(x, y).GetBrightness() <= c) (ims as Bitmap).SetPixel(x, y, Color.White);

                }

            }
玉墨言 2017-09-01
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引用 17 楼 xuzuning 的回复:
非要把简单的事情弄复杂了，真高人也
        public Form1()
        {
            InitializeComponent();
            var s = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAApCAYAAACoYAD2AAAE30lEQVRYR+2Ya4gbVRTH/+em2e3iVtvMvpS21Apa/aAUXZF+EBXBR0Fsxa2biQsLRStorVAqUjOZTCxYKrSriC1Si+3OLkStD6SoXyyCCtYHolIfVEtbXfcx2coi62aTe+TOJm2STZpJJl8KvRAId87jl/M/9965IVwEgy4CRlyCbJRKlyp5qZKNqkCj4jSsJ5eYB5eL7ILbIbibGDczsAxzn9IcDOA0AaeZ8A0kHZOBzGeTZt+pSj/KF2Tn1oOXZVvEowx6CIQ7AQTqrF4WjE8J/E5gWh4afanv38I4dUEuNg8sFrLpaQIeB3BlCdgYgO9B+IWYTzJoDIKmXBvJiwjcwUQrwLgOwE0AOkr8RxjYJ0V64KzZf1Y9qxlSi9pPgmAC0PLBCfhDgg6TwJFFmPnipNn/n5eKrjAPLJxC8xqWuF+A1zNwdYGfA3DMsSKveobsNO2VmSztB/Ed5wIxHQXxHscKfwCQ6jUfg0kzhh4A05aiHFBt4GFoxuA6gGwALTnznyGw3TH1wx7cazbRTHs9JHYAWOVJbi1qbwZhIJ+JwbtSVmRbzZnrcAjF7F3E2HrBSrYZtsVANBc/DUEbHDP8Xh356nZRKlaELKnguBTZuybNvh/rzubDsSxkmzG8liE/zPXDhBS8OmVGzvjI48t1HmS7meyScvav3PbERIFVE/FHfvWVxafzPEjNsI8BuEXFFYS143H9iM8cvt2LIEPRoY1E/Hou6oBj6VvKZWiPDq9mkutAYu9EvFdVvWGjLTZ8FVhuIhbvjid6vyvagtzdXzal5vZC+tOxwksrZQ4Z9gkCVgIY5azoTu3oPd0IytD24WUUkErJTgZ+T1n6NUWQoeiQQcRxNcmC7kuZ4Y8uABklwMo9H2HBt/pdWCFzcClJ+ir/LsCAkbL0xHnIx/YFta5WVcVWAF87lt5drTLFeyj/zQLd9YLOAeIYQF05qMSEpRt5BrcnQ8ZQP4HfcKtIfE8qHvmkGqR6rsXsBBjP52zrkr5QYjcO4QUnrucPkNyUSmYMfg7Qmmq9WA68BLQm6UslLgfocnfGDnZkODA6h8wvOvHIc16qWGhTj/TVJC6MT1p0KALiQ67UTGtSifCXtULWKr0XiYshY/ZrYGwCkHKOBzvwVk+2HsgyoGWl9ypxMeS5fsTHjqXfWy9g3u9C0tcicQmkrU4MdU+peMLUCq4ZQ08B/HJ+1TsiuNyttJxVN8LOuXna7FjhV7zEJs2wM+qWx8zPpBKRPV6cimzMZFNbekabaQrMqvkF0wtmJ3f2/KOdbyPV7cdzYNfn9pS9Tlx/YsmzySsyLZmgmmtOZ4MLp5vPntndM13KoCDzd5M+x9LdBeR1hIzBDQTaDaAdQLrAT313ALjHWplxIneRayp4pmAnAd7mWJE3S+XOQz7oWPr7XgFd+QxbHQD9tfhUtWV620mEH24Y5OVmMhTMpjeSoE5mmpkPICWIloHR53YhcZIZvwFCzJOUuJkZY2lB+6fM8EQlyJrlrloV1QdzL9EjylYy3ziZiPzgxa8U0t/CqZIxFBu8jZjcA6Lel2i1cBq+BRVyNwgy/3LRmM28tLCNkdvnsdhuJlslMndXVD0rrwXRTnfhAAkW9G0l2yxmjub/pCruSZ8vGJph/wTghloXQwX7U44VXlH6v9L/w88+LApG1A4AAAAASUVORK5CYII=";
            var b = Convert.FromBase64String(s.Split(',')[1]);
            MemoryStream mysm = new MemoryStream(b);
            Image ims = Image.FromStream(mysm);
            pictureBox1.Image = ims;

            var bm = new Bitmap(pictureBox2.Width, pictureBox2.Height);
            pictureBox2.Image = bm;
            s = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAMCAgMCAgMDAwMEAwMEBQgFBQQEBQoHBwYIDAoMDAsKCwsNDhIQDQ4RDgsLEBYQERMUFRUVDA8XGBYUGBIUFRT/2wBDAQMEBAUEBQkFBQkUDQsNFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBT/wAARCAAiACIDASIAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uHi4+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEAAwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6wsPExcbHyMnK0tPU1dbX2Nna4uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwD4F1X4P+EfCV3/AGX4o+Ig0nX4URruwttFlukt2ZQwTzVcBjgjJAxVP/hA/hl/0VSb/wAJqf8A+OUftN/8lz8Vf9dYf/REdeYV9DjKuGwuJq4eOGg1CTV26l3Z21tNK/ol6Eq7V7nceNvhl/wjk3h+fRtVj8RaPr6t/Z18kLW7Sur+W6NGxypViB1xz1646HU/hR4G8OX8+l618TRaavaN5V3b22hTTxxSj7yCQON2DxnA6Voan/yIHwI/6+r7/wBL1ri/jZ/yV7xj/wBhW4/9GGt8RSw2FhKsqKlf2dk3Ky5qfO7Wknu9Lt6feJXZtf8ACB/DL/oqk3/hNT//AByivMKK8z65Q/6BYffU/wDlg7eZ9BfF34ReJ/ij8QtV8VeFbW01rQdT8qa2u4tQt0DDykUgq7qykEEEEcYrjv8AhmT4kf8AQAh/8Gdp/wDHau+IPh18P/AOqSaF4m8Q65Jr1qqfaxpdjG1ujsobarO4LYDAZxz7Vnf2Z8Iv+g74s/8ABfB/8cr3cTh8PVrzqYiFpttyXtoKzb1VnB216Xdu5Kbtobnj54vBWj/Cjw9qk8K6voElzPqUFvKs32dZLsSICyEgttBJAPp6irXxF+BfjLxr4617X9BsLPVdG1O8ku7S8g1K2CSxu25SA0gI4POR1rivGvw2tdLPhe+8PajJqei+JQ62El5EIZkkSQROkigkcMR8wOD+HO7rngn4ZeENXu9F1bxH4huNUsZDBdPY6fF5Pmrw4Te4JAORk9cUpp1nUp4inaC5LfvIx2haPvNNSvHXRLvpewehV/4Zk+JH/QAh/wDBnaf/AB2io/7M+EX/AEHfFn/gvg/+OUVz/U8D2/8AK0P/AJWO7HftN/8AJc/FX/XWH/0RHXmFFFeXm3/IwxH+OX/pTHHZHtOp/wDIgfAj/r6vv/S9a4v42f8AJXvGP/YVuP8A0M0UV6uZf7t/4J/9MoS3OKooor5Us//Z";
            b = Convert.FromBase64String(s.Split(',')[1]);
            mysm = new MemoryStream(b);
            ims = Image.FromStream(mysm);

            var g = Graphics.FromImage(bm);
            g.Clear(Color.White);
            g.DrawImage(ims, 0, 0);
            g.DrawImage(pictureBox1.Image, new Point(0, pictureBox2.Height / 2));
        }
也许我真的太笨了， 这样？ 
                    Image img = Image.FromStream(ms, true);
                    int width = img.Width;
                    int height = img.Height;
                    Bitmap bm = new Bitmap(width, height);
                    Graphics g = Graphics.FromImage(bm);
                    g.Clear(Color.White);
                    g.DrawImage(img, 0, 0);
                    img.Save(ImgUrl + ".jpeg", ImageFormat.Jpeg);
还是就是这样不行 嗯，还有就png是没有问题的没有任何问题 Bitmap.MakeTransparent();一下就OK了 ， 现在是 data:image/jpeg;base64 这无法做到白底
xuzuning 2017-09-01
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非要把简单的事情弄复杂了，真高人也
        public Form1()

        {

            InitializeComponent();

            var s = "data:image/png;base64,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";

            var b = Convert.FromBase64String(s.Split(',')[1]);

            MemoryStream mysm = new MemoryStream(b);

            Image ims = Image.FromStream(mysm);

            pictureBox1.Image = ims;



            var bm = new Bitmap(pictureBox2.Width, pictureBox2.Height);

            pictureBox2.Image = bm;

            s = "data:image/jpeg;base64,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";

            b = Convert.FromBase64String(s.Split(',')[1]);

            mysm = new MemoryStream(b);

            ims = Image.FromStream(mysm);



            var g = Graphics.FromImage(bm);

            g.Clear(Color.White);

            g.DrawImage(ims, 0, 0);

            g.DrawImage(pictureBox1.Image, new Point(0, pictureBox2.Height / 2));

        }
玉墨言 2017-09-01
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引用 15 楼 closurer 的回复:
手机截图可以有透明像素？
不是，我用的截图插件，如果客户只截图图的一部分一部分未空，那么最后一部分图片会没有内容。而没有内容的部分会默认为黑色背景
闭包客 2017-09-01
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手机截图可以有透明像素？
玉墨言 2017-09-01
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引用 13 楼 closurer 的回复:
这张可以。
额，问题出现在上传慢和jqeg无法透明的问题上，本来我是直接转出png的base64 码的但是太大，现在客户手机截图随便一张都5~10M，所以我就转成jqeg的，但是却不支持透明，所以我想做成白色的底这样和页面背景一样也就不会影响用户体验
闭包客 2017-09-01
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这张可以。
玉墨言 2017-09-01
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引用 10 楼 closurer 的回复:
我测试过你的发的 png 图片了，里面并没有透明像素。 ……
png 没有问题 只要 Bitmap.MakeTransparent(); 一下就可以 问题是jqeg 不支持透明所以无内容区域会变成 黑色？ 还是说本来就黑色的低所以 不管这么处理都是黑色的？
闭包客 2017-09-01
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闭包客 2017-09-01
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我测试过你的发的 png 图片了，里面并没有透明像素。 ……
闭包客 2017-09-01
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引用 8 楼 excalibur_zbs 的回复:
[quote=引用 7 楼 closurer 的回复:] 把你的图片覆盖到一个白色的底图上面。
我方法二就这么做的但是不知道为啥没有用，[/quote] 这样做是可行的。我的图片缩放模块就是这样做的。 我看到你对底图的宽和高做了计算，需要检查一下覆盖的时候，位置是否有对准。
玉墨言 2017-09-01
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引用 7 楼 closurer 的回复:
把你的图片覆盖到一个白色的底图上面。
我方法二就这么做的但是不知道为啥没有用，
闭包客 2017-09-01
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把你的图片覆盖到一个白色的底图上面。
玉墨言 2017-08-31
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data:image/jpeg;base64,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
上面那段是png的
玉墨言 2017-08-31
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玉墨言 2017-08-31
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引用 3 楼 xuzuning 的回复:
你应给出数据，用于测试你的代码
base64码？但是好长呀？我在楼下放一段出来吧。
xuzuning 2017-08-31
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你应给出数据，用于测试你的代码
玉墨言 2017-08-31
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玉墨言 2017-08-31
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