Home > Enterprise >  URI to Bitmap C# ASP.NET
URI to Bitmap C# ASP.NET

Time:02-18

I am capturing a URI in ASP.NET MVC with webcam.js. I would like to turn this URI to to bitmap in C#. Below is my current code for attempting to parse the URI into a bitmap, but it, but it gives error "Invalid length for a Base-64 char array or string" when creating the byte buffer. I've also tried pulling it in as a C# Uri type, but haven't had any luck.

[HttpPost]
public JsonResult Scan(string file)
{
   Bitmap img = null;
   var matchGroups = Regex.Match(file, @"^data:((?<type>[\w\/] ))?;base64,(?<data>. )$").Groups;
   var base64Data = matchGroups["data"].Value;
   byte[] byteBuffer = Convert.FromBase64String(base64Data);
   MemoryStream memoryStream = new MemoryStream(byteBuffer);
   memoryStream.Flush();
   memoryStream.Position = 0;
   img = (Bitmap)Bitmap.FromStream(memoryStream);
}

Here is my URI that is posted from the webcam.js object data_uri which renders the image fine in html.

data:image/jpeg;base64,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 q2GiAMgrLbb5Oix4hx4UrBAPgKMD4/ZPYcxOE3ow52oDYa3ERwnNJBjgKIERPgLLak4jCl6f6CzZD/0WTByeVrh3sU8PkRGVnLTVBZITtbgJtMyD5lMc/wCnnKa0kHJ/qo yVCJZIOE3dHlMDjJ9j5SJjjlJuQDyNo55WHu3gCVGST5KcPupq3bQWZjaMrLHQclNMH2KyOQAqpILJN/7JoeI9/usE5hNM xRgB7qkgCSE6lBJnnwVCTMf6rIcWOx 3uqUU wPQZUERPCkD4iCta3eHEGIU5dBwFhLTk3yWiVrjBkrEyOcJmfdNg OVjlMokJjEJjojylJCTnOBnwVLd9AKQWxAWA7YJ5WC4 Fg1TGE42sIQ81CeTCw55MAmVEXychZILc/0VNUOxziRz/RMdUkR7pFxnmU3EqXqLhgZDi0RMgpbyBGY9k0kN58ppcDIlTGe3gSHby7B4CQEAgHlRl4mMpc8cK/yXyFmRDiSkQBysFwJiP1WS4DkJqVcD5MQ1oWA7ER qw4zkYTC8tOFDUlwIfmQCk8yOZWG1NxAOPlYkffKuO5d4CxB0A5gLBdtBgzKY50nJkeyY52YH9VX1hmwTJG4aRzKSjEiMpLNam3CsaZ57apyCZUjH7c 612vghTAtcYXqKzIla4k8SFMIBHha7HlonlPa8uMQArcmuh0bBeCI5S9QAYGVHKdACVvpAPDzKkkmCMKAOz8LJJxGVm9wyVxz8rBfAyT90xz9wglJz8AAqWm SR4JcMJwgclRE4SaZ9kq9IdkhIA/usOMxBUe7wsS6OUX1QiZpxysGoYJymNdBWScY8otegJA8bROUpkRMKKcR4CyH/OErT4VAOcCSDKaS4iI/VNcc84S3geUhm3blwEEY91th2BMytOjWBxK2WvOBz7KJJsZMSRB/smF08HKaQ4zlNJIXPJPtDJJPJSc6fkKMFLdHmFkkvYC3kn2S yROFgHC0qL7CxCd3Cy4zzIKwSYwsExknKWOmCFHslJIgJoMu5wsEuJ9kU3wxscXwBhMcYMCCFhx nKwDtCpQl2TkUZWSRHKYSAcBIkgSparKAQHnmEp2tTC6HD2KwXZIQmu0Mc4wARlNJ98LBfDflNcSeD91ca6Ac4gCVkGDMyoiADz ycId5TcXLKYGXmZymYPwsObCU Fm4 wHAfoksFxaElO2PYzxwN0gqZjtoAJWs10HKlDpHwvapPlEmwHSc4Um CFrtqQAOU9vkyU9v7EbDX/r904vMjla7Tn6gnjkESRwp47GTNk5JWHVQzJOFrurOpy48R4XOa51K3T2vIcAfYlFehHSm9pgkEx9ypGXLXGASUILzuKypWLfVbuHj3XTaH1WyrTZudlw8lRToDvw7GYWAc88LzrbUadw0EOBPsCt2k4PEj qNroCUnysz8lN8wswntfAGOCnALGAOUsnyk6jygHEhYgHwmOcGnJSFQGBysm/Qx5M P6ppBJGEi6PCYKh3D2U2I3bdnv y2QI4WrRcCc4WwICTpjHzGeVhzh/5TQZKaXE4hc8qQEkz/AOFgn5TA6MmQE6QRKxdegHtj3CREY5UYMkrAed0f1KSGsD58eUxz4MFNc7acFMc4EnyVpS9BZITtEhLfubn ihAPgrG eAZUtJdBY SVgmOE1ryRPhIkFNV0AtxB90jVJH9k1z48ZTQSMpK12IU7iFl0Dz 6w5wn5TSdy1UU8phY4wBgZTQ5YJJPCx/qpqgHHJS3GMLA/ZNJIRj0Ic4yMLEkD5TSQMnlYc4HkqbXDGO3AfZJMB3ARG35SWm2L6A8cOxHHypWnaIUVNpcJU7aZJGF7FIBwGVI3OFgNLRgSpBSJ/8AKVAJrhP id6m3zP2S9MkeFmnQlxBEpbEuAIKzHVGFrSSD4XD9X6FVvGkNBj4RFbS2gYTLm0ZWYQRM4V8CKta909dafWfUpteWjyPdedp/VV5YVSHBwHAn3Vk9Y6LpaizbtDQfZcx/wDSejud/KME88wECycn0f1rd3NzTa8EN4mOUZ9Hun3NBpcCSQuY0rtrSsagcGhuZwF29hp4tabW4gBJJBySNJiBkp3hThjSfcp0NaspNDI2sgTEn5TNhGfdTZMn9lkGYlc0hmq mSZKyaREY/otqGjMGUvHErJv9gazabichP8ARUpcsbisXq1gBtNhB8wpdxJxwm7sRwsbgEvy2BICeeEt6ic/anep8qG4vsB/qSBIWXVIwD igc44E5SmOShpLhgSud58rG/ySo9w90wuBwkrvkCZ1WMphqScBNNTA8Js8LWUpVygH854THcpTMpoM Vkpe0IeXfCwMglYPHH6pT/ALCtZAUzklIu90wmOcBJzhKbiA4nOU0uLc EzcsOMBRbXDAl3TGVG931eeEwOxEps5lVvnxyMeSSeeEtzlG53Cw2o4nnCiUJegJC47lG55B4wsucPsoy8ScopVlgSEnGElBvKSzwhGGgTEJ7WwcKBrpg5UrTBmV9GsICcH2UgctcuMc4UgcWx8pNX2ImbEElOBHsoQ8wIGVkPM ySRRsggBIKEEgEysipnKdBRLKQcTlRh4BnhYLzOCgVE 48ykH4UQcYzCzuxM/opabCiRrgPdO9QKDf7Sm7zKz2AbQqyIHKwX8qBrg0pOqALNpgTuqERlL1YWuXifhNLzJys25AbHqfKXqQPELV9QEe6Xqg/ouZuSYGyakn4WfUjHC1g/zKa58nlK2Bs7vlYNSPK1TUhL1dwQ5RSygNr1AfKwKgJWtvIWC/wArNtDNovhY9UAcqD1cJhqz9lm8iNo1PcrArD3Wt6gOPKwXgBLCGbDqwBk/0WfXEStPfu5Wd0GAnb6A2vWjzKYa491BvycphcCfdTuETmvJ4x5SNcDxKg3fKbuVptjNg1QUzfk5UReSsF8/EIV9gSF Ut8HKhDgPKa98cKrihE/qjKx6xHC1dx4WHP n4ScgNp1XB8lNNQASVrl0tmVg1MD2TjlXQGyKzSktXd7pLVbegJ2H2EBSsg//KwGYjlS02huSIle3QCa0HAGE nLfEj5T2MxgY9wnhp VSiK/Qh9QykGieU9rRyUi3blVsBsaB qdt5MJ20Dym 0BG2gsbwOJCwXeye45CbEzhQ4hbMAE/KdyFiYTWnaD/RTTC8GQSAsbyef6pTHhYJSHfsyTJ9knOBTTx7Jrjj3UtWJMe53GVG98TBTS/H3TZ Vg9MB  GpFxHCjBWC5YOKQyTefdKR8kqLcJWQ5YW0xkgcIysbuVHvgLIIPKvDEODjkrIf75UW DBysepmBwspQoCaQU0nM5/VMLljfmJlZbRkuD8FYIUe4TErBfnCW0RISAsbvsozVxwmOqRCai2gJt3Psml4BEKI1I yxuxhL8bvkZM5wmZ/RM9TKY54nlNq1mUwAHSr2V2BL6p85WHVQcSPsoC4xIOAsCq2CScppCJd/BjBWHPg 8rXdcMaI3StetfsowSceylwUngZu oQVh9SRPPwvO/xu3fO04HMkLFTWbdgjflV KVAeiHiOISLyeStKhdsuGbmuI VDqGsUrIGXRHJPCzUZrFCPSc9JeDT6kolhJcCeJlJbKNLMRnYUxLvIU7WAiOSsU6ZmTxytho4PhfVw8eT5IbMtpycqRrYwstaT8qRjASF3w8ZejNsj2RzhZDAfMKc0yDjKbBBy3Hst/46YtyISwg/CRZtC2AA7kQoyweDKT8Zeg3WQc8cLEqVzCxRlpkZC4NTx2uC06I4nymnJTiRuiRJUVaq2kJLgFwyg10UqscTATSfdRfiabh cSmPu6YIBcMrFxAmmfKaVqVtRoUWlxqfC1jr9rvDd4k/KhqgPSLsphMYUFG9p1m7g7Hj5Wpd6tStXne/6VPIG XLG AvGqdSW SHDIUFTqegymCT/Vc8o9WNM981B5CRdiQEOtR7nWljdGk qGwYyRK9Ch11Rr0PUa8OHiCsHCfRXJ2m7ExhYFUZQf6i70WuiOIrVg3nzCxpfd611Sh6tCuHAjwVltfYgwgyZmEhVhskIX6V3B/G3RphzjEcldnV1Q1NPL28BspbLYz1auoUqZAc8BNbqVvUwyo1zvgquPdLu9W6ae8NkObyB7Lyu3HeO46jq1N25kRjlaLTwBaB2o0WVYL5Psm1dXoDAdCFLeprkPBc6Qoq3UlbJJ5McrCajF0wCdcdQUbcA7wR9149XuDYNqhvrM3HG0uyhV1Trty3T3vY/bAwZ4Va9T661ZnUxpm5MB B4crhHTllgXvPWdv6RdvC2dP6kZeuDAQfsq4aRrta50Zm6s55IEu9/dd5231R9e7LH1JEDBPAVS0lVpCCtrmsjT7c1HYgTJQl6h76WOl3ApuqfUTxIyu367abjR3AEflkZ5VG 6pq2 v1KvqHLvyjEBEdJXTQLJczRu57dWtGVKT5B8B2Qt9vV3qU3Dcd3/bKr52Z1P8AF6NSdLS4N4P5/wDeESaVctrTiT4Kmem0/qwOvq9XvpuzLfglch1z3AudN099ameATM/2TK9xvr/V48eFyncln4jQa5GMcNVQ0s5YHI6N3 u7vVjQdUftJIBBgSidcdbXBtadY7muiRJVQNKrC16iwYG/EchWMoXzrzRaJxBYOPsut/XAw39u o6uqWxLnF5ODOEu49V9DTqldpd9MYB48f3XKdn67gx7N35Xe/P 5Xa9dURW0uscOG0rnllUxHA9PaxWr0XtNTdHk8pLw lqhpXtWm6XMiMFJPS8aMogWzo3tFp/MCfYlbIvabRucQAeIVPdC/iJfqXUFOxbVLiHbXScEIy6n1jWZoTqrTJ2SD7L7zQnDUuujmlfQWxrVruP8xuPC2RqdKJkQVSOn311N3VDbLftaXlpAMo ab1Jc19Lp1HViSWzg/C69PVWtezNGLb7YXamsU6bS8vBheHedc2VvVO sxhGMuhcFT1qrU0 qXvcHAGASqu92OudSs oX0qNw5rA TBic 6z19VaUdzHGO54Zd6j1xZV6ZIqgkexlS2fVdC5qtYHGScYVYe23UVxf6S19R7iXNGSZC7zpC/qnXfqqlzZADZwFnCbmk/YcOg7aldijZmqD4lcgOt2C6dS3iRjle5q5NbRTHtCCDqjma88OMQ/I VGq64NE0wpV sWtqgSN3vK5frDuMNLsqlZxIa0T8FePclxuWvEhvwuT7oNdU0Gr5dGB8Lg1U2sI0M6J35o6vqP4Zm8PB98Lp7/ALkVW7J oO4B8KqXb s6l1K4kyCfp Mo16w7dRpuEkiMLzWm RnUdWdyK9jpb6rWl20EgAoN6X351S712nQc0tpOfA uP3XV9Rn1tBqAiTskbvCrrTcbbqdgaC0h4iD8rFpgfQToPWamp6ax7nFxLZ V4vcLUbiyIdTdtz7rX7RXIraVbuJMFufH6J/dFpdbkng8LMZ4Ntq9zXshULoxyFIdRqXFk8bjuAwV5GjHfp7mzwMiVNRqg0qgBxHPsspQi8lAA7pazeW2tH/m3gSRBJCKPbXVql107RJLnktzJQo7x0Gsv9xwN3nkld52YuGv0BjJ4Ec5WMk/Yzhu89SrSvy9ri1okETx5W52hvX1rEtaSTxJ8rPe g6XOLCGgc CV4/Z26YHPZEPnH2 ElpRd0MN hXDqOqsz9UjAKONpWbU0n3Jb4VfLG4FHUmvBz8o89PVDW0lsuAO2cHCycVF4QFYv4h7cVKdZ8RGARz y4TsneVGaqGNIhxEyeEVf4ibUfhakfWI9uEEO1V 2y18bXFw4P8AqtVXsC0pqEhklPuSYaQIHwtKjX9ShSI8tHlTVnn0Rn90akW8gafULXV9Ke5sQBKqr1Kz8J1U87i0tf4PH6q1d 7dYPBks2mW 6qr3HJt pXua0sBdmVkn9lGxhu6QuRX0GnGRCIHbysaV4Gl2HGShR27uhX0GmJiGwCiD0Vcuo6sxpIBJkZXRqRX BBr6gb62lOA/wC3yqQ977QUdXJn5 I FeG4d6umOyD9OJ8KnXf6xdTujUFMgBx3H2KzjBp7rsXBs9h7z0qcbiSBAaROCeUaK7ibtpAIZHj3Vd yOo7Lx1MRuBkg QrBVHEem4GJC22OsDofcODHhxmOYXk9WsZcaNVnJLTtHuvRujFNp3AwtTVmtuNLeA76ts4WKjJPkkqPrLDYa7UBO0scQSEfukrg3ug03EHjECECu4FtUsuorgPAIc8wRn5Rj7dXhuenabQZO2CI4TnBzZXAVO2F2aN6 kHbdxnHlFPqCkK2mnc2WlvB8oH9D3DaOuMaQAZweZ Edb3dcaT9Rkbf2XJJNScbABuiu9HWalIEtBMAg454STbx7LfqlxMt3POR4 ElpCMdNU5f9Ar50fVLOsqD9p3b4PuFcarUFbpjbEO9LxxMcZVM9Brih1lSwQDVyPlXL093qdJh8n/p cnhfcfFRtTceTmk8qyqd3XNp1yCGDeKkD7SrddNVvW0G3IwC0QP0VRupaTbTrgvJH/VBb85jKtt0Q8P6Zo SW7iVv8AGve5xT44MtWN5o9mzc38NVaGwY5KqX3yY l1M7IkGHEe8q2dpIp1OJg5VWO/tM09fc9rYEyT5M Fp8lp/wBJWVpqkdt2YuC/QqTHEk/PgIn9MltHqBn1Agu5Qi7KXD32DT9O3b qKejuNLX6JaQQXiZPC28bSX8eO55MZS xYKo1tbRnkTwgPqILOo6kt2kvx7co6Wv8zRoJOW/2QP6lBo9SOEZnG7wo8iEIpSaLg2ehfucGsJ5nkLne4LQ/p6oYLnbZgeV0eoPDaFM 0SvG6opitoNU7p mIXDOO5YN/wDZWHQKho9XYwzcRg/KOFyQ zpPDsFsoI29B1DqxrQSP5kEFG8US/SqZDf8slci0Lu0NStmprIFTRKkZdtOY FXHU2in1IJOQ8EH4lWUuKPqaW mcYMFV06qt3DXXO2xJjHhc89BxHdlvOx1zUdpFAuxLeCZwun7kU21tOqOGC0TMLhOw92TpNIOcDgf kQ vaba lPkCNp4XDKNFIGehvL7RwGIJmCtu0d cTC8/QCSKrJ84W3av216gJ IWRQE 9dACq5xAmcGP15Xrdiro19PqU CHYWv3uohtvUeTEZHmTHELyuxF65lapTz9TsBZSbXAz2e9lq9li5xeC0/wBfhcB2lrmlqbwHYGYhEzvDai50x7nHaAP3KD/ba6NHXthOCf3T7AsBSqRc03wXHGAjh0fV3aWxpiY8ICsqO9SkZgeyNvQNYP05sGfpU4Tux9Az782odp9RrQCeZIVY g67bXqZkYJfEBWx730C7SqhE8HA54VPtGqOt q2EBwcamEJrmgLa2tQP0 kQPAMhbBfNtDpwF5ejV2v0qiSSTtEk 69GlVbVoEE7SfJUzmuOBEVR4fbPbMmMBVr7uUCzWt5y7z8KylMB1N4iD7oA96bVtK6LsEk4cPZTFNO RnsdqrhtfToJMgQD4RG6eqmlqzC0kmfKD3aC5IpvpBxy6YHCKul130tTYZ4OAVrJKroCxFo/wBbTIYDt24nyqv/AMQtsd9d 07fcFWW6erF2ktJ8tiJlATv7Z7qFYvaNpa4nP8Av5WULSEwI9pdQ/B66GmIdgmP9 6sp6wdQp8fdVQ7f1xbdTsY7cWvdt28 VaS3fNlRcAcN4PkJ2/7Qs3qlJlS2xlxHHuoGt22bmkGTghbFJzTQBgtMc ybPrUqjAAXxG5S43TaAq/3cty3XC/bABInkcrte0V2aliaby1wjgHI YXh967M0r/AHkkjgR9lL2bu4NRhb9XE/C0km GH6CzoTxR15jmHbnwefhH xf J0po/wD18qutKv8Ag9Xp7pndIJ4R86Yq/iNNYd0y0SB4MLFvPGR4BL1ixlh1GHFu0h07/mUl6PcqzLNVZUhoZ4BMpLJ6qWNj/wDBqyrtqx46q3OYRFSQ12MSrg6Fcm46UpkwHemJjyVT25eW9UANeHNNXkccq3XR49fpqiGkH6JX3nxMnHfHhnFO7srV1yH0 sy6sIcHckYGVaTt9XcelbcOEvDBMeflVi7mMqU tS7ZubvByflWQ7W1CelqTw4uloA/ F1fGOcNecJIz1fyKNo66yqkCoDAdBjKrL/ENRdT1VrwDsB qDkEqyVg41KtRu4Y91Xn I1pZcsIH1F2eeF1/ILfovonSc/7iTsfVNSx khpnAPxyi1ZuH NU3AbRuGB5QS7G1HbSd0AO458coyW9VtPVqRLnEbhmFyePFS0otysUprcWO0l2/RfJGzHygl1pFPXgS4 /OUYenKpqaQ36ifpmAhH3CJbqzSGgknkrq1m2qYou CS8cHWtF0y0gLU1pgfo1UQT9JIj7LYc/1LCmCIwk maumVGkjjkrCMVZTlSK43VoG9TOcGnd6kifBlGzTLA1dLokDc3ZH9EOamkE9TSId9eG8 Va7tj2k1DrKyoUra3c9zh4ER/Ze/o Cp6L1Jukv9Hn6nlRhKmwL1NKLrN7QJ D5VfOvNMda6w4mmQC8kmML6Xa7/AAzXeiWL6lWgXw0n/uA/ZUx78dBVNE1KpupQC7dkH7LN/HaPkaT1NGSlXpmUPPg57Wzd7DXG60YyfYRPCMHVzBV0l4JEbeEEOyW6hV2ggBoiPmUctdAqaU4 zZhfnnk6f4tRwPoIvdFNAa0R7vxtZrjtaCcrdpOi7eWyQvOtB6er1gTIJPlegCKd00RIXAzQGveWmXWFTzA3LiOylwKOsPaScuAyiT3XoCrpVVxb/lOUIu1lyLfqcU3DDieP9VDxyML/AHSAqaPVeRNNrchADo24bQ6nYdwDg4 FYvr6mLrRC0AGW POMKs m1vw3UoIiC/JH3yknYFim1A63pvmQQCEYe2d16tmwE4AkhBWyrNqWFJ4G5oEZRT7aXJ9NpHHssnKnXYzZ7uUBV02qdm7B n3HlUlvqotOpy4GWipiCrx9zKbrnSaojDmlUe6ooOtupnOiQKkjEeVMbcqSGWb6TuTX0WhwRtHC9yiQWEbZXI9t7l1fQqUknGZXVUiA52S2B7raWVlAPpTmXuAPhBjvdbfy2PDfcE/CMIeGvMEEHwhf3mtnVtPc9oyI/RZKukFnA9pLxrdQdSdPuBxmUZGtFK/pvBwTJygP24q nrTJGQcfujbUqvD6bmD6RHK1eY2ssA dF3RuNMa0cESh13vsPxGmV5GA0yMZXX9ubgmwDXEyB5Mrw 8NuaulVo5IgE/1WMYyTtsRTPS3/gOphgy2rGfurU6JWddaTRdUILiwceFVPUz E1/6htaH/UI VZjoi8Nz0/Qky4MH6pyUHmToDo6L/5RZEgeUy3eWPJmP7ptAjcWmPumNqE3BYBEKEk3hggRd7Lfcw1AIJMAn7Lh 1N6611Rw2kk8wfCJveCx9XTHS6MzPug70PUNvrtOfyboJ F0pfUA63jy vScHfSeSeUdugb51bSqYxkePKBFzH4em9sQIiUXO1t6Xaaym5wjwSsK7iwNHuxTNJ1OrDSeIJykvR7nW4rWLi0Z4kxlJRKm7cmOynuqNFLqRzQ0NDagMg8 f7q2fbyqKnTlNrHiA0CJnwqmdUUfS6hq/8A43 p9iFaHtPcM/4YoGYdsied2IlfX/GTWnqSUlZx6idfXkC3d9jB1OQJH8wtcOD90de0lx6/T9INIJa3aROceUDu9LCzqE1PJfmUXOy1089Ps3DdtbzP6L0/Db/kzpmWtlBHsm/8w8hwnygT/EVSbUa14BOYMeSjfZ3LfxbgBGJhBn IWlUrW27Ecjwt/NlH8LXZnop3dnHdkKpFy9jZn3JwjZVuWNvaO4jcTwfKAfZmsRqtRpLhERCN9xUBuqJjIjK5fFT/AApLoclUixfSVY1NHZH0wwYCGHcz XqDHzmUQegbhtfR6ckk7Moe91Ghty124AzHC69VP8e6hwhnBFSr pp7A0wIxKzbu3WL5Mx7rV097X6S1wdJDeCFi1uv TqNGTBwFyQmo5sqUZNHFsbQtupmVKroirOPuvoj/D53T6Z0Hpy3oXLmWj9oDnkSD q XXWXURs9bADYgnIPOfdFHozrS5qaMwiq4EgY3T4X1s9XxvN8NeNqvHOD53yPHktZakej6a9W/wAQvSFhaVWNrC8qQYYBhfOb KjuRpms3dT8NQaxm4gg8rzrjqa6q1HNLi8eZMlBDu7qb69YvJMt5zhcHjvxvioS/jNtyxk0elPX1FPU5Ow7L6qauoENcNsySrC37y7SiZGWxIVTuxl//wA QS0F7hH6cK1Tqgq6M5pBEthfB bqPV1ZTPptKOyCQFbio6nr9UNwA4hbtSo5l03JBK8/ViaHUDzyCeFt3J21qZGZXlOObs2PD7itc/S6m12C32lAboWs2h1ZTAdkOx8/f4Vget4qaK8RLgPbwq5aRU/BdYMLcNFQcfdKkBY3qFhq6GSGAks4/RVev3fhOp/yx/M448qzt4Tc6A0iQC2cYIwqw9SUnUddc4/Sd5IHxKypdIaDzpFz6uj0HAH8oKJXbO8Lq4ZIjyEKOj634jQaJnhoB 6JHbyr6V9AcI5LU7lV1QJBG63otq6U8mfymIVH 5Nq216ieQeXzBV6eo2GtpLo r6eJVKO8Vpt1t7gI2uhXFtrIBO7QXwraOxrXGIjPuu 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 SrG9oqxqdOUthaRtwYVdOvKRo628lud3B 5R77JVg/p4AOgiB9sL3vjZvT13KXFHNKO5UDzvYzbqgLzsql3MeES xd0DoDKbXOEN88ErgO/lOLqnUgB5MFx f/S6vsPcbdJBJBHER5XTDVf8AKddg40vYW7eWXp4yMwhV3/3nTgWmGgQ4xxnCKFKpsvGukAFDXvq/doziRIA5IzyvR16cGpMiP ARdoLks11wB l DIR0vKxBokTn5VfO2906nrzRT43QZ4R8vXw2k6QQIC4fFk1piklYfuga23SaX1CdvjyuR7qxDSW5mZ9l7HbiuH6XQLnw4NA 2Mrx 6pbs3xuj3W85/UcYJZPF0iqH6Rs5dBKjsrgClV28weVqdP3Bq6a4Hzx8JWcNq1AR9RXHLUajSL2AK7tE0NWL52SZAXY9tNWP CNDn7iQQAfC4nvcHM1UucCGyIPhbvay9fU08tkQ3knlRHynG08A4JhMoX5ddOk7gf6IU94K9Nji04cROV3bbmLkCdv2Q87uDfQJgGBl3lZavltqkSoUR9j74DVw0OlxIhv2PKuNp9Z1TSm7nZjlUc7P3Ro65Sbt3EugT4V2dFqNq6a0NONuJXkyd5NkCfqqW9QbzGTEqa4qYpkgR7qHroGlrQJgfZYrO3W9L7cysUyiHqZoraRWjO5hgqtF2W0eqgQNxNQHHgyrNamN kvAgnbAnIVZ pKYtupW7IaQ8EfupfoZYmwrtuOnGN4imPp/RVu67pubrtVxaGgVD VWH6XeKvT7XuIktxKBPc62/D6o8jMuklUsAEHt/cmroNNsgCP1RG6GrbdWYZGEJ 2Vb1NMa2ADHKJPSlYU9UY1v0kuRa4AOt /wBXSXQ2TtxCpz3xo7b95pgkAmXAfKuDSPq6XmYIwqp99rdwuKh9MhsbiZ8/7lJP9DR5XZS8eKlRrnS0xH39kaqhcHtc0QCgB2ivhRvmskAkyAj9UfIYS6ZHEpNpDFV3AtBdnlaXUlM19LdLZwVvV A8ZwtXUwa2n1BGI4U94JZV3Wf V194b9MPwjT0vWdV0Wk2QfpCD/XVA22uFzgJ3In9A3ZqaO1pJ 8K7odhS7eVxSvJ4f8APhFXVw6vpLyYP04CC3Rld9DUoaYkjnkiUban8/SPpEnbgKXKhFLu89k5ur1Kh2gc7RiP0XpdlNQAq k9 AOI/wBFtd8rT0rskMAdkcfdct2lvvT1hvAcMREyi8UgZYOq4suRDsH3SvzNPdzPlQ3hZ9LpkQM FPcgVbZu3iFm9ydtf9GebrDfX0yo0SYEEqs3VdE2 uVTt2w9WjrPmwcHY ngBVq7h23pa3UcTtO6cHlVCVsEEvoS5FxojActY3j3C7roK9NHXGSdrZIB8FDPtdcmtYbAPpHuZld909XbR16luwC4HHAVbs0MPmoO9bScHJGSElizq ppQa76xGCAElZOCj/cRrxqwqSYJwCJRj7I3BdpUMjaOTPx/wCEIu4ry6/eSNv1kgfqiZ2OrtZYEB2x8AQ3z916sGoazRB5vfXL8tJI oOXo9hrovtQwtDi2RuHI 61O DPXokkiG5ha/Yqu6m4sDQ4AZIweVrGUn5Nt4JfAczUIvGBxgHyVwne1zq gghxcASSW/byuyrvPrsJg5XId16rX9PVP8mOR8 F2a9yg1uM4or/ANvqpZ1JQ2umHx9RwrC3zibeiTlsDhVt6RcbfqOmJLXF8YxCsPUrufpzKk8CYK87RlSyahm7YXG7Tg0kyAIlRd1GuNgSBuf/AKhaHaa7FSzb9RMmYIwvS7mk/wCF1XkHA/2F1ykpRBHEdMVgbN8ugiYIKktqxfXdIz5IXmdK1WuZVBkD2C3LepN69nLJxHK4pScY8jA13wpk3G5rzHseAPC1e0t06pbVGE7tphej30o7G7mzkRk FzfaK4LalRoME FzKb4AJb3ll03BIBXGd0GbtPc8QQT48FdVe1Hi7awnbJyVzXcZjamknMuA5CzboDhO1936fUlFogDdyVd3pS59XS2HyW8eyoh0RUNr1FSfgw8ecK73QdUv0pj93Iwsm/Yziu4NM09S3HILlq7h EpugnAXp9yobch5cD5heLaVd nTJxwsnOKdWOjZuyKumuxtAECFXLr6j6Wvl3gOx8qxlA/iLF7TAdGAVXjuYzbrBcZALlSzkLoL3QVV1105TLn7htiR55yhR3boll8S3jnKI/a q5 gtBMtiNoK4Xu/b/zicNIkq7GSdqbgVLWoJ/LARK0OoP8AE6YnG6TCEPai4muaZ lvmPP3RTtKgtdRpu/KNwkqbAsNpVQv0oNd7Kuffqz2MrvI2gifgyj309XdU0uCZLggz3xtTUt6xA4bGT ySoAG9srn0teYMYPBCscwmpQovAjHsqxdG3DbLqKmXjaA6He/KsvaVvV0 k5jpECHBPkZtvcKdPcct8wo7hzqto4sbwCpA0Poz58qFlWaFRu0jH5gk2kBXTuiws1d7tsZmfldX2xuzWsdpkiP2Xj93LQNug5oBqESTCf2ruSWmmRxk7RwqXGBBY0N/patTLTEnmeEdNNuBcaW3kNDeFX61aHX1MAEiRkmEeOmKoq6WA7w3hZ/ZsCvvfGyFdtR8AEE5HI 6D/bm8Np1AzAMuj4CPPfGxDKdRzWgbjh39vsq6dO1n0 oWhoAcXwScAZTirWeQLQu3Ps6TnEF 0fAWy15fa7Q2SVoWVZlxo1Et/7QQfiFt2teLZ3BMYwq/TAzQY02tQAEOA85Ve 69rs1Fz4G0 fPuj/AGT5LxJB8AIN947YNeKvDstLSOVOL ozX7S1HuPpseQ1oLiESKTzS1ekWhoMoPdrtQNPUA0gNBO0keyLV1Uey5Y4cGOFWXyH A 9NVxcadg7m7R/okvP6Eud kU/tiElFPoaKi9yWepfuJIaI/eCu27IlrWkFsEf5yZ/2FxPcF4F1u2yACIHkrpezd2d7wAGgNH/APS9LTe6doyZ73eSmz8M6q4/SQRheD2Yudt09rXbRMAnyve7rn19OBDQ0sJOOXThcb2irejrZbUkteYa39UPdLUQiwNRw9Zsuk 68DuPtqdP1B7tIn5XrVqswR9P3Xj9dsNbQHw6DtJBXVrSlH6PkOEVt09/o9RgtdMPwRhWDoVTU0mk6OWjCrpbOLepA4S0B/KPenXBdpFOJ27RBOFnoSlFOSAKvay6c2i5hblp5ldT3Empo1RxDj9PAPK4XtTefW4/mdMcccLuOuau/SHkt2w0j9wlLUcltGCvpes9rqrXAH2hblKt6eovJnJXjdN1dt/VaeT49l6lWpGoZ4OPsufaxsHneqkKltuJgxgTz8FD3te8s1AtL9o90R 8dOdJJcc ChZ25f6Golu4ncVjwILmoOBrsIMwY3LxOumippBLWl2PZere1AzYfEjIWj1W31tIftII2zKhjA501cGj1FTJwA//AGFdvtrVDtIpBvhoEyqN6fFPX2yCRu4Cud2luqbtIZBhxbP08H5SGN7oMhhqDkf5o5XKafd77AAjEey7TuVTFS2A3YiQCuD0ncLZzXGR4KloD0beX0nwcEeSgd3Utwy c7dmRlG yEtc2ZJ8HyhD3dtvSq7iG7j/AJfiUgPd7QXgqaeacndzzheR3ftwZJcA4THzhP7PVSWVGAYxIW73UtQ 3NTkDB E8gcF2yrAajtLo8Itsqlt1TAHlBPoYClrdP6oId5RorS11KoJj3USipcgg59GVTV0tjZAdEfCHvea2L7aqTO0A5C7PtzcNqadTJMOiM V4Xdy09axqmc7eI5T6GVH02KGvsJJ/wCoIn7qyXTtb19FYWw4gQD7qtN5FDX8gj Zj4yrFdG1XXOiU8gECP8ARVS5A6CiHuoEYyOAm21Rx3MxEQlau3B37BRUmOZVeCInmPCoayCLvDTjeQ0CIEnlc32xvCy9qM3YfGJXd91rJlxZHG0 /shj0PU/C6uwNjdugbkMQbKRcbimQ7YAco19E1m1LADduEePCCbs m9vGMIsdu7gGi1pxA4nn2WVOWGwZzHem0dX06s1gkQTJ5Cqiw/htczja/n9Vczunairp9QBoMgzH2wqba2wWuuvkmA/z5TSptsRZDpSsbjQKVQkEFkTGV62nvLC4RPwuZ7e1W1OnaY2zHzPK6SzcPUcMtPGVSmuijFKmKV2 fpB9kN 7doatoduC3EnPKI4cWXUkgiYhch3WtBW0io5oAIHMIr0gAz0HW/D6zTDsEO8eUcbip6lJj4MjyfIVf8Ap6q221pgLjJfE/qjsK7zpzIhxDRlVw8gFztxcGpasO7a3iP0SXkdqrr1aPpAmQd0nhJRT5QyvXcln84ubDRnwt/s5cf83UY7ILRDfmcrQ7gMq p9QbBmMyFjtQ91PVgAKYdBhzv7LpTdkBB7o/8A2vbz4zxlD7tnUdS1um5zpDSZ yIfcNnqaU WgktGfIQv6Cc4dRNotkkk cITaaEywdWo2WuIJkCIWt1M/fpD2tz9BA MJVK7jRpSQ0wJPysawPV0p5iDt5 F2z1oTX7FRWa/Jpa0NxMbsnzyjjoVXdoFJ0yYjJlA/qSGa46XHdu9oRf6SuBU0SmBAIaAR7/K5VOlQdhK7YV9l8N5IBO0D 6JXVrvV0urAn6fCEvb28cNRAaNrpiSivrs1dJc2Idt8KdzYwP6IGs1h4B4M/IXo3ryL2eQV41k99HXKhAGXYXsXrz Ia7huMQo38oGcl3SpipojnkSAPKDPQlY0tfIH5XY OUcO4tsami1XCQNsoE9MObT6gYeWbsjyoYUGbUhtpMcPAEj3WtrbTU0VxaOW5WzqDZt2ADAaJhMvgHaE8A/URiVIwE1GOo6zzB3YI 6tz2Zuo06j9W76QMfZVG1Os6nrMgB31eytJ2RuCNMoGZBPPvKBnd9w6YdYF7weMIdaLBpvAyfZEvrZnq6a/ySMTwEMdKdtqPAYAQYJCBG/agsqn38IY936BdTc8D6sAyUS6Lv5ziZycBcJ3XoOfaE7SYEmMyf/CTkhnM9oagF2QXQWkH q63ue1r9MqBoIkecCVw3ap7m6uWgSBzHKJfX9l K0V8NJ2if0QuMCAR0yfT1oB2CHcHyjiINCkY9oCCGnWtajroexhI3TkI40Les7TqT3sduIB3QkgCl27qhlsJ5njype51IP02o5syW4JXn9uqL6bQarXAzP3 69/ruyqXWmVRSaXywwAnVLA ClHUlNtLX3OGYejl25uvU0RggOMRgob9T9A6rcavvoWp2k5HEIpdtelb3TtM2V2EVHcCDACWGI6C2Ox5AMZ8pCttuCZnxC9ah09Xp1SXZnnCk/wCFa7rgv2Hb4JVVXAwZdybc17JzzxBwPHygv07VNHWAd0fUOPurUdT9BVtSsi0fUSIiEOdM7D3FHVW3Bktad0twE7Eeg2oKtvTcBDoRG7dVnNAbIn2UFHt451qGhskYBAXU9KdKu0fJaS7guU7ijU7gUfW0us5zQTsIglU06wsn0tYeHMj6pDlezWtKOo276ZbO4Rn2Q61Hstb6hU3FrAQZBjyh54AHnaV9V2lhjmH0gPpx5Xa06Fand8QOV2fTfbijoVFlNuWQJHsvbZ0xQ3uc5oPgNKUW wBfXsqrboEtcQT4C87rrSKt1ozhTpl73CBhGhvTlsXSGAEeyVx0zb3DCHtDmkQR8K8hwUjseidQ/wAZGyg/D/bgI2aT07cP0v0QN08bhwjPS6I0yk/1GWrQ7HhejS0G0otJFFokRwk3XIA77eaPWsq72GmdnJPsUkTLOxpWgIY0MnyklFtcjRS7uLSJcAyBnn3wvP7Yvc3VgBDSTBMeF1fV/TF3dNc m0zzB91odv8Apm7s9S31qL6bBlWqRB23XzW1dHLm4huYOShB0jU9DqOm95cBviT4R31/p2te6Y6Gugtx/wCkPdI7d31LWGVXU/oBmYkK7GE/e2tat99uFFe1tulva7MiJ9l7FHp oLFgILKg5gLYq9KOrWtSm9shwOcrSU3J5EVO6mpxrdQ1CSWvIn3hFboja7SKYDTkZgcL0dY7IV7/AFH1QHMZMkASSV23T3bh m2Io7S2BtyP6rJMdI87oOsKWrluHQYgjlGC eG6a0kzIyJXKaF0O3T7plYAu Y8rs6trvtvTwGkRBSYJWBN1N46hqbQQASf/AXp3gr1KlOGnaF3v/Btu64NYgF58Kf/AIWpvILpAHslVifIJOsLa4utFqt2k03NIiEDtF6cv6Gusm3fAfJgK6Vfpa3rUSwjBwZXmU 3OnNrCp6bQfIHlJ2AI/8ACLitZsDmOBLRgLYf0xc19Oc1rD WGz7/ACja3p22bRawMAAxwpRolBoAAB 6dWBTvVO1Gq19VL20voDpk yOfarpm70ehRbVc6ABiMIn09AtA7d6TS77LbtrKlbN2sYGjiApoDzNf0839k5kRI4XHaf0TWoVqjoJa8/sib9Lseyxtaw4CYHDN6RLnfWzI8rzNe7cU9VaWlsgiMonCC3jlZgeyTBAc6d7M0dJvhXYzZtPAEBw V2N90LRuqG0sG4iPhdiAIJ4 yduJPCWEMGFr2asqVy2q6nTjyAMldRR6It6Nu2m1rSBj68rqPfCU4RSQjy9P0NmnmWQB8BblzaNuGbScfZT IWZMERlOkM8R3SVjUqb30ml4/zRlblpottZg myceVvJwOITwDNdun0S/dtAMeVMLZgyGgfonkAeyzuwRx qTdCIjbsOS0JNpU2kQ3j4TtxjKXGSpbfQGSADPCeIn2TDJz4S4GQmt3Y0OjOI/VIgTjlNMFYESqyJ8jxxxhZIDU3gYlIEHnlIY/aBHzykI/9rG7OUoJCaAc12eFl0EhNEtBwsmIiDKKAyIcJEnKSwxvpk PdJK0uSgeXOg2NwGepQa DIlbFpolnbvYWUWg/ISST7Ej1a1lR9Nv8sH9EmaVayD6QEeySS0RK5NynaUqYO1sKWnQZt/KEkkW7AdToMknaE8gAn6R ySSFwMyANogR9lIQCDhJJSxMxEPCw d/KSSkTHP hpIP7pN5CSSaDoyTgpRLZSSTYPgaBkrEkmEklIzLclPAkJJIExU E2oIJyUkkDYm5apC0RKSSaKQwE5TvA 6SSlkjoWHOJdCSSYmKU4NxKSSQ0YHKa8wkkgfQgZErPJSSTQIzJmJSHlJJAzCwcpJIZMR0flTyNjoHBSSTRSMBoLktx3R4SSSAeMhO3kOhJJKRRgfUcpJJKI5Q6P/2Q==

Thank you for any help!

CodePudding user response:

Your regular expression is incorrect.

The base-64 data starts after base64, in the data URI. Note the comma. Your regular expression includes the comma in the data capture group. You need to put it outside the capture group:

@"^data:((?<type>[\w\/] ))?;base64,(<data>. )$"

CodePudding user response:

[HttpPost]
        public JsonResult Scan(string file)
        {
            byte[] data = Convert.FromBase64String(file.Substring(file.LastIndexOf(',')   1));
            Image image;
            Bitmap bitmap;
            using (MemoryStream ms = new MemoryStream(data))
            {
                image = Image.FromStream(ms);
                bitmap = new Bitmap(image);
            }
        }
  • Related