Hi,
You might try doing setQuality(1.0) for the JPEGEncodingParam of your
JPEGImageEncoder object. It is possible the artifiacts are results from
lower quality quantization.
Tom.
--- Graham Stewart <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I'm trying to generate a black and whit barcode graphic image in a
> servlet.
> I'm using the com.sun.image.codec.jpeg.JPEGImageEncoder.
> This works fine but I get pretty good barcodes.
>
> However if I look very closely at the image there are a number of grey
> dots in areas that should be white.
>
> Should I be looking for another type of encoder?
> Any help with this would be really appreciated.
>
> regards
>
> Graham
>
> .. here's the guts of the code
>
>
> protected void doGet(HttpServletRequest request, HttpServletResponse
> response)
> throws ServletException, java.io.IOException {
>
> // Set the correct content type
> response.setContentType("image/jpeg");
>
> // get the output stream
> ServletOutputStream out = response.getOutputStream();
>
> // Create a new image object
> java.awt.image.BufferedImage image = new
> BufferedImage(WIDTH,HEIGHT,BufferedImage.TYPE_INT_RGB);
>
> // Get a Graphics object we can draw into
> java.awt.Graphics g = image.getGraphics();
>
> ////
> // Draw the barcode using the Graphics object
> ////
>
> // Create the encoder on our output stream
> JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
>
> // pump out our image
> encoder.encode(image);
>
> // we're done
> out.close();
> }
>
>
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