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Resize/resulution export without changing original dimensions

Kommentare

27 Kommentare

  • Ian Wilson
    Moderator
    Top Commenter

    I'm not sure what you are trying to do. Why are you changing the resolution? If you will be displaying the images on screen, the resolution setting (perhaps 72 dpi instead of 300 dpi) makes no difference. The screen will display according to the actual number of pixels, irrespective of the resolution. However if you are printing the output image, to does make a difference. A 6000x4000 pixel image can be printed at 300 dpi to a size of 6000/300 = 20 inches wide. At 72 dpi it can be printed at 6000/72 = 83.33 inches wide. 

    Ian

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  • Emanuele De Rossi

    Hi Ian,
    The thing is, during a job session, it happens quite often that i have to send jpegs to the art director to do the layout using jpegs with the same dimensions af the finals but with less resolution because they don’t need bigger at this stage of the work.
    And also wondering why there’s a “Never Upscale” option if it doesn’t work?

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  • BeO
    Top Commenter

    "Never upscale" is for resolution.

    With "dimension" you mean proportion (ratio of height to width) or the crop, right? If that's the case then check your export adjustment settings, there is a Crop option, you should set it tor "respect crop"

     

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  • Emanuele De Rossi

    Dimensions means dimensions measures not only the proportion ratio.
    I have to keep the same dimensions of the original but with different dpi

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  • BeO
    Top Commenter

    Maybe it would help to understand if you post a screenshot of all export settings, and tell the dimension numbers in question.

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  • Emanuele De Rossi

    This is quite simple:
    if you try to change ONLY the resolution (dpi) in the export recipe you will have a file with different scale (aka mesures) because C1 retain the same count of pixels in the output even if you have selected the option “Never Upscale” in the Scale menu.

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  • BeO
    Top Commenter

    DPI has no real meaning. As you said the pixel count will be retained which means the resolution is the same, it is not upscaled. When you say

    It will always upscale the dimensions to the native pixel count even if I flag the "Never Upscale"

    this is the wrong perspective. Actually, it will not downscale, it will just keep the original resolution.

    If you like tell us what exactly you want to achieve, and maybe paste a screenshot here.

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  • Emanuele De Rossi

    Hi Pavel, it does work only if you set the dimensions, by yourself, but if you try to set “Fixed” it doesn’t.
    Working every day with different cameras it means to set the dimensions manually every time.
    I wondering why with Fixed scale it doesn’t work

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  • Emanuele De Rossi

    Yes Pavel,
    Actually it’s the only option at the moment, then i i have to resize a picture by resolution i have to use Photoshop actions easy made by myself

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  • BeO
    Top Commenter

    Emanuele,

    That sounds as if you are overcomplicating things. C1 has all the possibilities to downsize or upsize images without the need for Photoshop. Just, I am not clear what you want to achieve. You say:

    it happens quite often that i have to send jpegs to the art director to do the layout using jpegs with the same dimensions af the finals but with less resolution because they don’t need bigger at this stage of the work

    The layout is usually done in some kind of layout program and there are boxes or alike which define where in the document the images go and which size they have. To my knowledge they usually will be scaled by that layout program no matter what the resolution or dpi or the images are. 

    Anyway, if you tell us the exact requirements from your art director (in numbers) I am sure we can tell you what you need to set your export recipe to.

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  • Wilfried Schoder

    Hello,
    another way to "down-size" a picture (to decrease the size of the exported picture as jpg-file) is to downgrade the quality

    in this hardcopy it's the slider "Qualität / quality" .
    Perhaps this helps you ..... 

    BR, Wilfried


     

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  • Emanuele De Rossi

    Yes, thank you but in this way the image became lighter with same dimensions and Resolution

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  • BeO
    Top Commenter

    How can I solve It?

    Do you still want a solution in C1?

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  • Emanuele De Rossi

    BeO it's simple in Photoshop you change only the resolution in a simple step, in C1 no, according to the official notes it retains the native count of pixels.

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  • BeO
    Top Commenter

    Then you did not look at the right place in the official notes I guess.

    The below recipe is exporting to the resolution 1920 pixel x  calculated height based on the crop ratio, but if you do not want to tell us the art directors requirement (or be more precise on your requirement) but instead insist you know that it is not possible in C1 then I suggest you keep using PS.

    Cheers,
    BeO

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  • Emanuele De Rossi

    Sorry BeO we’ve olready discussed that its possible in the way you show, we already know that. We’re discussing another thing, that in not possible to change the resolution without insert other parameters. Wich is possible in PS with just one click

    -1
  • BeO
    Top Commenter

    I completely don't understand you but I guess that's fine. 

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  • BeO
    Top Commenter

    Guys, there is a mysterious one-click solution in Photoshop for a task we don't know exactly what it is as he doesn't want to tell us (or I'm too stupid to understand). The whole thread here is waste of time.

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  • Emanuele De Rossi

    Hi Pavel, John, and BeO,

    Sorry to everybody if I was not able to answer in a proper way till now, I am always in on the set in locations, studios or travelling 😅

    And thank you for all your answers!

    John and BeO you're totally right, of course, this discussion it can be easily seems bizzarre and without sense.

    And yes as Pavel understood from the beginning all of us knows the meaning of dpi, dimension, resolution, and the relations between all of them.

    The request (meaningless 🙄) from the art direction is to preserve the "original" native dimensions of the frame without any crop.

    This screenshot from Photoshop came from a Nikon D850

    Here you can change just the resolution in "one click" without entering any other data, preserving the Original Size.

    In C1 as we all know we have to enter also informations, in scale percentage, or dimension every time for each "native" camera output

    That's it.

    Initially I supposed that this thing was hided somewhere in C1, but it's not.

    Best

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  • Emanuele De Rossi

    For the last time.
    I was wondering if there’s a way to che change JUST the resolution and retain the native measures, (cm, inch)without entering ANY other thing, percentage, height, witdth, lenght etc…
    Simply there is not
    in Photoshop you can do that

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  • Emanuele De Rossi

    John,

    You wrote:
    “As shown in my screen shot, if Scale is set to Fixed and 100%, then nothing will change except the resolution value”
    This is no correct, you’ll see if you try, or read the official notes about the menu Scale:
    “ Specify the required resolution in the Resolution field and from the Scale drop-down menu, either select the default Fixed 100% to use the resolution to resize the image (keeping the native pixel count unchanged) or select the print dimensions independently to resample the image. If not resizing images for the Web or to print, you can leave the setting to the defaults.
    It means that if you leave the Scale as Fixed at 100% and try to change just the resolution, the native pixel count will remain unchanged even if you select the Never Upscaled Option in the Scale menu, and the “native” dimensions will change.

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  • Emanuele De Rossi

    John sorry but you’re not reading.
    First didn’t mentioned crops but only about native dimensions of the file, then I’ve mentioned to change only the resolution and you didn’t.

    -1
  • Emanuele De Rossi

    John you're not reading, 

    Pavel already answered right two days ago

    In C1 if you want to keep the "native" dimensions when you change the resolution you have to specify the exact dimensions you want otherwise C1 will change the dimension anyway to keep the pixel count

    -1
  • SFA
    Top Commenter

    Emanuele,

    If you FIX the dimensions in cm (or any other measure) one of the other values has to be variable.

    If you specify a ppi value the dimension you see are advisory  - the size that it would be possible to present at at that ppi (300 is typical for printer defaults for example, but not always the same default for different devices)  - so that you have some idea how big the final visible result might be.

    The actual ppi delivered at the end of the presentation process will be managed by the display method - i.e the Printer or the screen/projector capabilities. 

    Image dimensions may influence the number of pixels as will any compression applied when creating an output file - for example a jpg file.

     

    If you request an output dimension smaller than the pixel dimensions some pixels will be discarded.

    If you request a dimension larger than the pixel dimensions (notably if the original image has been cropped in some way, for lens correction purposes for example) C1 can enlarge the output by adding pixels (up to 250% so long as you do NOT set "Never Upscale" )

    If any sort of crop has been applied where the ratio of the crop dimensions is not the same as the ratio of the original file the exported file will need to be in the new dimensions OR have some sort of alternative processing applied on export to allow the expansion and trimming of the request out pixels to be adjusted to the required size - basically the same process as a printer applies in the same situation when requesting edge to edge printing when the file output size ratios do not exactly fit the media size requirements.

    Out-of-camera jpgs would have this sort of adaptation applied while they are being created, which is one way that the camera created files will differ from RAW files.

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  • Emanuele De Rossi

    Thanks SFA ti have spent time for all this details, I already know all of that, i started using intensively Phase One softwares till 2000 around the world, and collaborating with the initial team few times at the beginning.
    Anyway mi appointment is very simple, at the moment we cannot change just the resolution without touching any other parameters in C1 and maintening the “native” dimensions of the picture.
    ‘Cause C1 as you know will increase the dimensions to maintain the same count of pixel of the raw, or you have, as you wrote, to say to C1 the dimensions to respect.
    In PS in the resize dialogue window it’s enough to change the resolution and it will maintain the same measure of the picture
    It’s a simple thing that in C1 you cannot do without indicate the dimensions
    And yes, I’m lazy ;-)

    -1
  • ruppert bohle

    Hi there

    I have a question related to this thread (at least I think it is).

    I noticed that when exporting images from a C1 catalog I will not be able to upscale more than 250% of the original file size. Is that a known or even intended limitation within C1 or did no one stumble upon this until now (hard to believe). To elaborate a bit more what happened: when I for instance set the "format & size" in my export recipe to scale the long edge to 10000px it will maintain this output size until i crop the original image to a size smaller than 4000px on the long edge after which it will consistently lower the output size to stay at exactly 250% of the original file resolution.

    I don't seek to be enlightened about the usefulness of wanting to enlarge an image to more than 2,5 times its original size. I merely care to know whether or not this is an known limitation in C1, or a bug (at which point I assume that I have to send this to a different forum)

    (I'm on C1 23 Pro, Build 16.2.6.7)

    Thanks!

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  • ruppert bohle

    ...oups, my bad. I just noticed that when I put a number greater than 250% in the Scale "Fixed" it actually tells me that it is not possible.

    So just ignore my question above.

    (still it's a regrettable limitation)

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