//黑白图像上色 -- 智能识别黑白图像内容并填充色彩，使黑白图像变得鲜活。 None
public static void ColourizeDemo(string pic)
{
client.Timeout = 60000; // 修改超时时间
var image = File.ReadAllBytes(pic);
// 调用黑白图像上色，可能会抛出网络等异常，请使用try/catch捕获
var result = client.Colourize(image);
FileInfo fileInfo = new FileInfo(pic);
string newfilename = fileInfo.DirectoryName + @"\" + fileInfo.Name.Substring(0, fileInfo.Name.Length - fileInfo.Extension.Length) + "_Colourize" + fileInfo.Extension;
SaveBase64Image(result["image"].ToString(), newfilename);
}