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  • ollieholmes
    replied
    Originally posted by Greg Wilson
    That "original"...at 74kb is not much help Oliver...



    You are only going to solve your problem by taking time and checking all your settings (camera & editing).
    I notice all your Exif is stripped from your photos. I thought I read that you use PS7.........don't know if that is responsible or other software that you use......for example, how do you upload from your camera to computer.
    If there was a way to get the full size file up to here i would do it.

    I use a combination of various bits of software for my processing, Raw Shooters essential, Paint shop pro 7 and Nikon Capture Nx.

    How do i get my files from my camera to my pc? All my files are copied off my memory cards onto my portable storage unit untill i get home. Once i am home and can acsess my pc i connect the PSU to the computer and use rawshooters to browse the images and do my initial deleting of the obviously bad ones, eg peoples heads, prop tips etc in the way or pin dots. I then copy them onto my pc hard drive and using Rawshooters again i go through and i am more brutal with my photos before loading them into Capture NX for the processing.

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  • Greg Wilson
    replied
    That "original"...at 74kb is not much help Oliver...



    You are only going to solve your problem by taking time and checking all your settings (camera & editing).
    I notice all your Exif is stripped from your photos. I thought I read that you use PS7.........don't know if that is responsible or other software that you use......for example, how do you upload from your camera to computer.

    Leave a comment:


  • Bart Bandy
    replied
    How do you selectively sharpen?

    Enough said? This one I'd love to learn!

    Leave a comment:


  • ollieholmes
    replied
    Someone asked for the orgional so here it is, all i have done is reduced it to 1024 pixels wide in one step.

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  • ollieholmes
    replied
    Originally posted by Billsville
    The compression artifacts are in the sky mainly towards the right hand side. This may also contribute to overall softness of the pic. When a pic is too overly compressed, the compression algorithms have to throw something away to get to the required compression level. Different compression algorithms achieve this in different ways, however one thing the usually happens is the high frequency components in the picture are thrown out. The High frequency components are responsible for the detail in a picture. Hence the softness.

    Also note the distortions around the wheels of the plane. So much data has had to be discarded that the wheel are very soft and in fact loose the sharp edge that defines the wheels.

    This is a bit of a simplification, but in this case it looks like the Softness and compression go hand in hand.
    Thank you. Now things make sense to me.

    Leave a comment:


  • Billsville
    replied
    The compression artifacts are in the sky mainly towards the right hand side. This may also contribute to overall softness of the pic. When a pic is too overly compressed, the compression algorithms have to throw something away to get to the required compression level. Different compression algorithms achieve this in different ways, however one thing the usually happens is the high frequency components in the picture are thrown out. The High frequency components are responsible for the detail in a picture. Hence the softness.

    Also note the distortions around the wheels of the plane. So much data has had to be discarded that the wheel are very soft and in fact loose the sharp edge that defines the wheels.

    This is a bit of a simplification, but in this case it looks like the Softness and compression go hand in hand.
    Last edited by Billsville; 2007-07-04, 09:57.

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  • Greg Wilson
    replied
    Not a bad shot......but with a shutter speed probably at less than 1/125 there is a bit of blur working against you.
    It is worthwhile in cases like this to see the original........we have no idea what has been done in post processing.
    However after looking at a few of your photos, I am guessing that you are underexposing your shots, leading to an increase in noise levels that is your problem here.

    Leave a comment:


  • brianw999
    replied
    Ollie,

    There's been a discussion on the other site about sizing in stages. There are some people who resize in stages and some who resize in one step. Trouble is, no-one seems to be able to come up with a definitive reason why ?

    Personally, my workflow goes like this....

    1. Equalise the original and clean up dustspots
    ( although I am tending to do this after step three sometimes.
    Depends how much sky is in in the pic )

    2. Level the original.

    3. Crop and resize at the same time i.e. set the crop tool to 1200 x 800.

    4. Set the histogram levels.

    5. Adjust contrast.

    6. Use shadow/highlight very sparingly, most times not at all
    ( Awaiting a curves tutorial !! ).
    If the aircraft has a sky or different contrast background then I create a
    layer before shadow/highlight use and delete the sky to avoid "Haloes".

    7. Overall sharpening as required. Use layers to remove jaggies as they
    appear and selective sharpening where required.


    I don't think I've ever had a .jpg compression reject using this style of workflow.

    Leave a comment:


  • seahawk
    replied
    Well, 210kb is a usula size for an upload wiht an aircraft in the sky, with such a background it seems small to me.

    Leave a comment:


  • ollieholmes
    replied
    Originally posted by Thebuzu
    The photo looks soft here on the screen.... How much steps do you reduce your images in?

    Ruben
    3 steps, down to 2000 pixels, 1500 and then finaly 1024.

    Leave a comment:


  • ollieholmes
    replied
    Originally posted by seahawk
    The filesize is very small with just 210kb. Might have used a bad jpeg setting by accident ?
    I thought 210kbs was not bad for files from a D50. Ive uploaded files smaller than that before.

    Leave a comment:


  • ollieholmes
    replied
    Originally posted by mrk25
    The worst thing you can do, every time you resize there is an element of compression/quality loss. To much compression also gives the effect of areas that are soft along with areas that are sharper all in the same image. Either crop & resize at the begining of your workflow or resize just before you save it as jpg.
    With these the compression was done straight after converting from RAW to jpeg where i then make my tweaks and then save.

    Leave a comment:


  • Mark Ralph
    replied
    Originally posted by ollieholmes
    I dont get it. I reduce my images in several steps rather than one big step .
    The worst thing you can do, every time you resize there is an element of compression/quality loss. To much compression also gives the effect of areas that are soft along with areas that are sharper all in the same image. Either crop & resize at the begining of your workflow or resize just before you save it as jpg.

    Leave a comment:


  • seahawk
    replied
    The filesize is very small with just 210kb. Might have used a bad jpeg setting by accident ?

    Leave a comment:


  • Thebuzu
    replied
    Originally posted by ollieholmes
    I dont get this rejection.
    http://www.jetphotos.net/viewreject_b.php?id=1492552
    Rejected for undersharpened and JPEG compresion artefacts. Now to me this photo looks sharp on my screen. If i sharpen it any more i get jagged edges. And can someone please explain this JPEG compression? I dont get it. I reduce my images in several steps rather than one big step and i apply no compression to my files yet i get this rejection.
    The photo looks soft here on the screen.... How much steps do you reduce your images in?

    Ruben

    Leave a comment:

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