How to Convert and display only the first page from Multipage Blob .Tiff image to .Jpeg using C#

Question

I am pretty much newer in asp.net MVC. My core objective is to Convert the .tiff image to .jpeg format without saving as file. For that i call separate file(ex:gettiff.aspx) for showing .tiff image in browser.

What i have done? I was saved the multipage .tiff image into DB as blob.

What i need? Need to show that multipage .tiff image by converting to .Jpeg in View

What i successfully done? To convert single page .tiff image(File/Blob), i don't have any problem in conversion as .jpeg and viewed as well in VIEW

Where i stuck? To convert multipage .tiff image(File/Blob), i have problem during the conversion as .Jpeg and viewed as well in VIEW

Sample Code: C#: In gettiff.aspx file

while (Reader.Read())
                        {
                            Bitmap bImage = ByteToImage((byte[])Reader["refImage"]);                               
                            byte[] array1 = ImageToByte2(myBmp);
                        Response.ContentType = "image/jpeg"; // if your image is a jpeg of course
                        Response.BinaryWrite((byte[])array1);

                        }

Convert Blob to Bitmap:

public static Bitmap ByteToImage(byte[] blob)
{
    using (MemoryStream mStream = new MemoryStream())
    {
        mStream.Write(blob, 0, blob.Length);
        mStream.Seek(0, SeekOrigin.Begin);

        Bitmap bm = new Bitmap(mStream);
        return bm;
    }
}

Convert bitmap to bytearray (this will gives as .jpeg format)

public static byte[] ImageToByte2(Bitmap img)
        {
            byte[] byteArray = new byte[0];

            using (MemoryStream stream = new MemoryStream())
            {
                //System.Drawing.Image.FromStream(stream);
                img.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
                byteArray = stream.ToArray();
            }
            return byteArray;
        }

In View:

<img src="../GetTiffImage.aspx?batchImageId=@item.RefImgId&&ImgType=CBlob" width="150" height="100" style=" border:groove;border-color: #ff0000;" />

I need to convert as .jpeg and display only the first page from that multi page .tiff blob.

Problem occurred while saving the stream - "A generic error occurred in GDI+"

Anybody can help me...

score 0 · Answer 1 · edited May 23 '17 at 12:08

I Found Solution here. By getting that single line code i can able to display .tiff blob image

Sample Code:

public static Bitmap ByteToImage(byte[] blob)
        {
            Bitmap bm = (Bitmap)((new ImageConverter()).ConvertFrom(blob));
            return bm;
        }

Instead of using Memory Stream, if i use this conversion will able to get the image in View. Remaining codes are same from the question

How to Convert and display only the first page from Multipage Blob .Tiff image to .Jpeg using C#

1 Answers1