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Thread: PhotoShop Question

  1. #1
    Join Date
    Dec 2004
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    Melbourne, FL
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    PhotoShop Question

    Anyone had this problem? Any ideas?


    I scan an image in.

    Open it it PhotoShop. Looks good

    Change it to greyscale Looks good

    Save it. Close it.

    Reopen same image - It looks different. Bad!

    At first I thought it was Photograv that was the problem but then I reopened it in Photoshop and saw how bad the greyscale image looked.


    HELP!!! Please.

  2. #2
    Join Date
    Mar 2005
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    Anaheim, California
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    6,914
    Quote Originally Posted by Pete Simmons
    Anyone had this problem? Any ideas?


    I scan an image in.

    Open it it PhotoShop. Looks good

    Change it to greyscale Looks good

    Save it. Close it.

    Reopen same image - It looks different. Bad!

    At first I thought it was Photograv that was the problem but then I reopened it in Photoshop and saw how bad the greyscale image looked.


    HELP!!! Please.
    What format are you saving it in? I had a problem with several applications when saving grayscale images as .jpg files: there's a "antialiasing" option that really screws things up. Among other things, it introduces color artifacts at edges...my guess is that JPEG doesn't really do B&W/grayscale images, when reloaded it still thinks it's a 24-bit color image.

  3. #3
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    Dec 2004
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    Melbourne, FL
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    Saved as Greyscale BMP

    I save it as Greyscale in BMP format 8 bit.

    Just tried a photo I did a few weeks ago ( worked fine then ) and quess what. Same problem. It goes bad when saved as BMP.

    Problem is Photograve needs bmp for input.

  4. #4
    Join Date
    Mar 2005
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    Anaheim, California
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    Quote Originally Posted by Pete Simmons
    I save it as Greyscale in BMP format 8 bit.

    Just tried a photo I did a few weeks ago ( worked fine then ) and quess what. Same problem. It goes bad when saved as BMP.

    Problem is Photograve needs bmp for input.
    I know Photograv is specialized, but taking only BMP as input is a bit much.

    I'm assuming you've tried saving/reloading the file in other formats and that works. Okay, if it's just that Photoshop has a problem outputting 8-bit BMP, there ought to be a semi-free file converter that will take some other PS output (GIF, JPG) and get a "good" BMP for Photograv. Come to think of it, Paint will do that...uh, you're on a Wintel machine right, not a Mac?

  5. #5
    Join Date
    Dec 2004
    Location
    Melbourne, FL
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    It has worked fine for months - bad nw.

    Windows XP


    I have been doing this for some months with no problems. All of a sudden ( today ) when converting to bmp it gos bad.

    Looks good on screen but close the file and reopen it as the bmp and it has changed for the worse.

  6. #6
    Interesting problem... I have been using Photoshop for too many years to remember... currently using CS2 version...
    I just took one of my color images and did a greyscale converion and then saved as bmp... the original was a jpg at 96dpi...
    I had not problems with it...
    Here are the two greyscale files and the original.. the one on the left is the BMP... I had to bring the resolution down so they would post..
    Attached Images Attached Images
    Last edited by Tom Mullane; 08-16-2005 at 8:11 AM.
    Tom Mullane
    Hagerstown, MD
    If you work with your hands you are a laborer
    If you work with your hands and head you are a craftsmwn
    If you work with your hands, head and heart you are an artist

  7. #7
    Join Date
    Feb 2004
    Location
    Fresno CA
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    198
    Hey Pete,
    Quick question, when you engrave the image is it distorted like what your seeing in photoshop? If not it may be a video issue on your computer. I always view images in their actual pixels to get the true image look. If your not viewing in actual pixels goto-view, then actual pixels.

    Hope this helps

  8. #8
    Join Date
    May 2005
    Location
    Charlotte, NC
    Posts
    126
    Sometimes when you don't view at an even zoom ratio 50%, 100%, etc, it looks crappy. You'll get the best quality while viewing at 100% magnification.

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