如何将文件路径从asp.net matlab ne builder dll工具传递给Matlab函数

Am Newbie to Matlab. Am trying to build online image compression tool using matlab and asp.net. I have written image compression algorithm using matlab and it is working fine and I have deployed it using ".NET Assembly". Then it generates *.dll files. I have included those files in ASP.NET Project -> References -> *.dll. In ASP.NET I have provided option to browse to upload the image. I am saving that image in one folder. I have created an object for dll and calling compression function by passing saved image path. But am getting error like I need to pass MWArray. Am Newbie to Matlab. Am trying to build online