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    <p>The issue is that the conversion between the hex-encoded string to byte array isn't being done property.</p> <p>The code you listed will treat each of the chars in the blob as a byte, so an 'F' will be treated as 0x46 (the ascii code for a capital F). What you want to do is de-code each 2 characters as a single byte - i.e. F0 = 240 etc.</p> <p>It assumes the string is an even number of characters. You'll also need to strip off the '0x' prefix, as that's just an indicator that what follows is a hexadecimal representation of the data.</p> <p>So instead of this:</p> <pre><code>strPhoto = csvuser.photo; // The string that represents the BLOB byte[] bytes = new byte[strPhoto.Length * sizeof(char)]; System.Buffer.BlockCopy(strPhoto.ToCharArray(), 0, bytes, 0, bytes.Length); </code></pre> <p>Do something like this (adapted from previous answer given <a href="https://stackoverflow.com/questions/311165/how-do-you-convert-byte-array-to-hexadecimal-string-and-vice-versa">here</a>):</p> <pre><code> strPhoto = csvuser.photo; // The string that represents the BLOB //remove first 2 chars (the '0x') strPhoto = strPhoto.Remove(0, 2); //convert hex-string to bytes: int NumberChars = strPhoto.Length/2; byte[] bytes = new byte[NumberChars]; using (StringReader sr = new StringReader(strPhoto)){ for (int i = 0; i &lt; NumberChars; i++) bytes[i] = Convert.ToByte(new string(new char[2]{(char)sr.Read(), (char)sr.Read()}), 16); } // Then we create a memory stream that holds the image MemoryStream photostream = new MemoryStream( bytes ); // Then we can create a System.Drawing.Image by using the Memory stream var photo = Image.FromStream(photostream); </code></pre>
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    1. POHow to convert an SQL Server BLOB string to System.Drawing.Image?
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    1. POHow to convert an SQL Server BLOB string to System.Drawing.Image?
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    1. COYes, the issue was the conversion from the Hex-encoded string to the byte array.This example did the trick for me.
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