convert byte[] to BitmabImage

[amer shammout]

MemoryStream stream = new MemoryStream(b); //b is byte[] BitmapImage image = new BitmapImage(); image.BeginInit(); image.StreamSource = stream; image.EndInit(); when i use this code i receve an error Exception message is {"No imaging component suitable to complete this operation was found."} inner Exception is {"Exception from HRESULT: 0x88982F50"} what is th problem

[KarstenK]

the BitmapImage needs to get some members filled.:~

Press F1 for help or google it. Greetings from Germany

[califax2k]

I am also interested in which members this might be. Which are the most important ones? Thanks, Lars

#pragma error( disable : * )

[Pete OHanlon]

Whenever I've seen this error, it's been caused by one of two things: 1. The image data needs to be offset. In the Northwind data, you have to offset the image byte array by 78 bytes (I think - you'd need to look this up, but this rings a bell) or 2. You aren't actually located at the right place to read the data from in your stream, i.e. you've gone past the end of the data. Use stream.Seek(0, SeekOrigin.Begin); to reset the stream to the start of the byte array. Note that option 2 is just a variation on option 1.

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As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

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[califax2k]

Hi, I think, in my case its different ;) I am receiving an image from a webcam. What I want to do is, The image data is provided through an Image which uses a FormatConvertedBitmap as ImageSource. This bitmap uses a TransformedBitmap as BitmapSource (this all looks a bit like a decorator pattern). Now I do the following: I call CopyPixels on the TransformedBitmap with an pre allocated buffer with size: source.PixelWidth * source.PixelHeight * source.Format.BitsPerPixel / 8. The stride is source.PixelWidth * bytesPerPixel and the offset is 0. I pass this buffer as an argument to a memory stream and try to use this stream as StreamSource for a BitmapImage. It produces exactly the error message mentioned above ;( I played with CachingOptions (set it to None), CreationOptions (PreservePixelFormat) -> nothing ;-( Any Ideas? Greetz, Lars

#pragma error( disable : * )

[Pete OHanlon]

If you get this message, it generally suggests that the system cannot find a CODEC that could be used as a suitable source. Try saving the data out to disk and seeing if you can load it with a standard imaging application.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

[morishuz]

i have exactly the same problem and i am not surprised because there is no way this could possibly work. nowhere do you actually set the image width or height or the pixel format of the byte array (in my case it's just a string or RGB values) - nor can i find a way you might actually set these - but they would definitely be required in order to initialise a BitmapImage. if you read from a file or an in memory image format this information is contained in the header of a specific image format such as png or jpg - but in the case of simple raw image data it is not. hence the exception. there obviously must be another solution. sadly i have searched high and low and still have no answers!