图片转成流 Bitmap b = new Bitmap(Server.MapPath(ppath)); Stream ms = new MemoryStream(); b.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg); 流转成图片 MemoryStream ms = new MemoryStream(Bytes); return Bitmap.FromStream(ms,true); 字节转图片 /// <summary> /// 字节数组
SKlearning大部分的输入数据都是M * N数组. 然而我们从数据库或文件读取得来的通常是Python内定的类型tuple或list 它们的优势就不说了,但是直接把list或tuple构成的二维数组传入scikit是会出问题的. 如: DeprecationWarning: Passing 1d arrays as data is deprecated in 0.17 and will raise ValueError in 0.19. Reshape your data either u