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B_C - Prescreening advice

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  • dlowwa
    replied
    Originally posted by B_C View Post
    Would this remove compression? And, I do not get the crop/ration part considering its 16:9 ration aspect
    Not sure what you mean by 'remove compression'. Compression can't be removed, only avoided in the first place.

    290kb seems quite small for a 1280pix image.

    This is a 1280pix image, and even with blue sky only as a background, the original file is 635kb - significantly more than 290kb.



    This one is 1600pix, and 1.2mb. At 1280pix it's still 877kb



    Compression is happening somewhere along the line in your processing.

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  • B_C
    replied
    Would this remove compression? And, I do not get the crop/ration part considering its 16:9 ration aspect
    Thanks.
    Click image for larger version

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  • dlowwa
    replied
    Originally posted by B_C View Post
    Just a few general editing queries,

    A. How to spot compression problems and how to fix them ?

    B. how to spot noise in photos and how to fix them?

    Thanks
    Without trying to be flippant, just looking at the image. Noise is obvious. 'Compression' at JP can mean various things, from actual compression (loss of detail because of small file size), to banding in the sky due to fine color gradients not being rendered well when converting to jpeg, to pixel smearing from small sensors/too much NR.

    Leave a comment:


  • B_C
    replied
    Just a few general editing queries,

    A. How to spot compression problems and how to fix them ?

    B. how to spot noise in photos and how to fix them?

    Thanks

    Leave a comment:


  • dlowwa
    replied
    Originally posted by B_C View Post
    One more question, is this a dust spot? If not what is it?
    No idea what you're looking at, but in any case it's your photo so you should know better than anyone else.

    Leave a comment:


  • B_C
    replied
    Click image for larger version

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ID:	1207435One more question, is this a dust spot? If not what is it?

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  • dlowwa
    replied
    Originally posted by B_C View Post

    Thanks is it fixable.
    Possibly.

    Leave a comment:


  • B_C
    replied
    Originally posted by dlowwa View Post

    Contrast, compression, cropping/ratio.
    Thanks is it fixable.

    Leave a comment:


  • dlowwa
    replied
    Originally posted by B_C View Post
    Prescreen for this please
    There might be an error to image so let me know and I will resubmit it.
    Contrast, compression, cropping/ratio.

    Leave a comment:


  • B_C
    replied
    Prescreen for this please
    There might be an error to image so let me know and I will resubmit it.

    \Click image for larger version

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  • dlowwa
    replied
    Originally posted by B_C View Post
    Thanks for the answer. Are these problems fixable?
    1. no
    2. possibly

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  • B_C
    replied
    Thanks for the answer. Are these problems fixable? I could use the Adobe photoshop or lightroom to fix them. I am worried of the first photo because part of the flaps are cropped.

    Leave a comment:


  • dlowwa
    replied
    Originally posted by B_C View Post
    Hi, Can I prescreen these 2 images please. I am new to this thing so this may be not perfect. Thanks.
    1. soft, contrast, motive. not much aircraft visible.
    2. dark, contrast, horizon

    Leave a comment:


  • B_C
    started a topic B_C - Prescreening advice

    B_C - Prescreening advice

    Click image for larger version

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    Hi, Can I prescreen these 2 images please. I am new to this thing so this may be not perfect. Thanks.

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