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Thread: Help printing images

  1. #1
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    Default Help printing images

    Hi ALL,

    I'm trying to print (to the printer) a small image 265x35 px and it is printed in very poor quality with jagged edges.
    When I'm printing it from any other program (e.g. Word, mspaint, etc) it is printed clearly.

    Also, the image is printed bigger than it's normal size (approximately 25%). But, I'm not doing any scale in my code.
    I did scaled it down to the right size, but the quality still remained very poor and jadged.

    The image is a transparent PNG file. I tried with a BMP too, but I got the same results.

    I'm using

    Graphics g;
    g.drawImage(headerLogo, x, y, headerLogo.getWidth(), headerLogo.getHeight(), imageObserver);

    What may be wrong ?


  2. #2
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    Default Re: Help printing images

    OK, this is getting seriously annoying...

    I'm struggling to print an image in its original size and quality.

    I tried this time to design my logo (png image) with 150ppi resolution (instead of 72ppi before). I printed it from mspaint and Photoshop and prints crystal clear and in right dimensions.

    I printed from Java (using the code above) and it prints bigger and in poor guality.

    I figured out (simple math) that java prints by 75% bigger any graphic than it's real size. I scale it down by

    g2d.drawImage(headerLogo, x, y, headerLogo.getWidth() * 75/100, headerLogo.getHeight() * 75/100, imageObserver);

    and using these rentering hints

    g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);

    But the result is really really disappointing!

    What am I doing wrong ?

  3. #3
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    Default Re: Help printing images

    If you want to you can just use NetBean, java. It's free on Sun Microsystem inc. website. Here is the scanner on my home PC.

    HP Deskjet 2540 series with scanner/printerStarAdvertiser_Newspaper.jpg
    Last edited by planetHollywood; April 25th, 2014 at 02:20 AM. Reason: HP Deskjet 2540 series printer

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    Default Re: Help printing images

    Java Objects.jpg Here is the book I am reading now. It is a good conceptual and object oriented book.

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    Default Re: Help printing images

    I'm sorry, but what all these have to do with my question ?

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    Default Re: Help printing images

    Can you post an SSCCE that demonstrates the problem and shows the code from opening, processing, rendering, and printing?

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