将画布图像发送到服务器，并将处理后的图像从服务器返回到客户端以显示

Question

I am trying to upload canvas image from client to server and then after processing sending this processed image back to client to display it again on same canvas. I am able to upload the canvas Image by using Canvas DataURL. Here is the link thst I followed - Saving HTML 5 Canvas as Image on the server using ASP.NET

After uploading I saved the image and did some processing on it. Now how can I send this processed image back to client to display it again on canvas.

I am new to HTML5 and asp.net mvc

Answer 1

If you want to send the image back from the server to the client, you should use SignalR (or another framework/library which implements websockets). The other way is to request the image from the server, but you have to be sure that the webserver has finished processing the image.