image in binary

can anyone tell me what should i do to get the image in binary format

From where do you want to read the image? From File or From Database?

I want to pass a binary form of image from servlet to user Image is already stored on server

Originally posted by Ali Gohar:
From where do you want to read the image? From File or From Database?

Still not understood
do you want to read the image file in form of byte[]?

Originally posted by Ali Gohar:
Still not understood
do you want to read the image file in form of byte[]?

I want to convert the image in binary form i.e 10101 And need to send it in file

But 'binary format' usually implies it already encoded as an image, which can be stored as file. You need to specify what the source of this 'binary data' is, and what the destination format is.
For example, if the image is stored on the harddrive of the server and you want to send it to the client, get a binary OutputStream from the request, set the mimeType to "image/imagetype" (eg image/jpeg), and pipe one to the other.