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chrgue
Participating Frequently
October 17, 2012
解決済み

Wrong image size when placing in CS6 [2012]

  • October 17, 2012
  • 返信数 14.
  • 112277 ビュー

When I try to place a picture in photoshop CS6 either from drag&drop in the application window or from the place command, my image gets automatically resized based on the resolution (pixels per inch) of my document.

 

Example:

I create a new blank document, 1000*1000px @ 300ppi.

I have another image that I want to place in the document and this image measures 500*500px @ 100ppi.

I then go to File->Place  and the image that appears is way too big.  In the Info panel, it says that the image is 1500x1500 and the transform settings at the top indicate that the image hasen't been scaled because both width and height are at 100%

If I cahnge my document resolution (no resample) to 100ppi, the image has the right size when I place it.

 

So my question is:  Is this normal?  Because it has never done that with past versions of Photoshop.  If it is normal, is there a way I can change this because placing an image based on it's physical (printed) size makes absolutely no sense.  1 pixel = 1 pixel.

 

Thank you for your help

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    解決に役立った回答 Chris Cox

    Thank you for the explanations and examples.  I do understand all this and I have done similar tests to make sure sure of how the tool works before coming here to ask my question. 

    I don't want to sound like I am complaining and I am not trying to argue. But it still doesn't explain why photoshop is resizing the image based on its resolution and not pixel size.

    Maybe I'm thinking it out too much but I guess the answer is "Just because.  It was coded that way".  I am sure there is a logical and practical reasoning to this from when it was created but it just doesn't make sense in my workflow that it is behaving this way.

    If it still is this way, it must be because it fits the use of most people.

    Then my next question would be following an example I gave earlier. 

    I have grabbed images on the web from different websites and put them in a folder on my computer.  A lot of these images have different resolution (ppi).  I want to make a moodboard out of them, put them all in one document, but I also want them to keep their original pixel dimension when I bring them in the document.  What would be the best/fastest way to proceed? 

    - I can calculate the scale transform needed to bring it back to its original size. Based on the two resolutions.

    - I can batch process the image to have their resolution changed to the same amount, without resampling.

    - I can place the image as a smart object.  Open the Smart Object. Change the resolution. Save the Smart Object and go back to the document.  The image will update to its new size (which is weird to me because I haven't actually changed its pixel size, only it's "virtual physical size".)

    - As Sudarshan suggested, I can open the images one by one and copy/paste them in the document.

    These are the solutions I have at the moment but they all seem time consuming considering I must import a lot of images in the same document.


    >> But it still doesn't explain why photoshop is resizing the image based on its resolution and not pixel size.

    Because otherwise you couldn't use smart objects for placing FPO files, replacing content with higher resolution files.

    And mixing documents of different resolutions would be a nightmare.

    Photoshop honors the physical size you specified for your document.

    返信数 14

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    borismd
    borismd
    Participant
    December 8, 2016

    I understand the problem and I understand the explanation. The issue is the same.

    I do at work 90% pixel perfect digital work. Mainly webdesign.

    The (basic) web is based on pixel resolution and not DPI resolution and non-vector artwork is pixel based only.

    The situation:

    I open a 72dpi file as default. That is even what PS gives me as webdesign template.

    I tend to use screenshot that tend to come from multiple monitors (96dpi, 300dpi, 256dpi...)

    Every time I place for ex. a 256x256 screenshot, it will place it smaller.

    Before applying the import, I almost always have to input the pixel sizes so it can stay pixel perfect.

    It takes too much steps to input pixel size while doping an image, changing the DPI from a batch of images or any other trick to overcome data that the file already has.

      Chris Cox
      Chris Cox
      Legend
      October 17, 2012

      Yes, it is normal to resize based on the physical dimensions -- this is because smart objects can work in different resolutions and need to go by the physical sizes.

      Resize during place does not affect the scaling based on physical size - that needs to always happen.

      And it sounds like what you really want is some command to get the pixel size of the child object to match the pixel size of the parent file, regardless of physical dimensions (resolution).

        C
        chrgue作成者
        Participating Frequently
        October 17, 2012

        This isn't just a question of Smart Objects, if I have unchecked the "Place or Drag Raster Images as Smart Objects" it still does the same thing. 

        I don't know exactly how the operation is done, maybe it is first imported as a smart object and then automatically rasterized as we accept the transforms.  This would go with your explanation but otherwise I don't understand why it would do the same thing.

        Also why does the image retain it's pixel size when it is pasted and not when it is placed?

        But resizing an image based on it's physical dimensions is so arbitrary.  It doesn't have a fixed physical dimensions. 

        300x300px @ 300ppi = 1x1 inch

        300x300px @ 100ppi = 3x3 inch

        The exact same image, same number of pixels, but different physical dimensions.  The only unit that stays the same is the pixel count.

          JJMack
          Community Expert
          JJMackCommunity Expert
          Community Expert
          October 18, 2012

          chrgue wrote:

          But resizing an image based on it's physical dimensions is so arbitrary.  It doesn't have a fixed physical dimensions. 

          300x300px @ 300ppi = 1x1 inch

          300x300px @ 100ppi = 3x3 inch

          The exact same image, same number of pixels, but different physical dimensions.  The only unit that stays the same is the pixel count.

          Photoshop resizing is not arbitrary however the way Photoshop works is very complex Pixel count doesn't always stay the same in fact sometimes there are two pixel resizing done.  Therfore Photoshop behavior at first confuses its users and may seem to think its arbitrary.  Its not arbitrary and once understood it no longer a problem.

          I'll try to help you understand what is happening. Toward that end do the following so we all start from the same base.  Open Photoshop I'm using PC CS6. Next create three new documents in floating windows. The first 1000 px by 1000 px at 300 DPI with a white canvas. Second one 500 px by 500 px at 300 dpi fill the background with green. The third 500px br 500 px at 100 dpi fill the background with red. Save the documents to your desktop. And make sure your Photoshop preferences are set to resize images during and Place or Drag raster images as smart objects. Your screen should now look something like this:

          next position the floating windows so the easy to see access and drag and drop on each other. Then drag and drop the red and green doc onto the white doc. Your desktop should look like this. Note the dragged in layer are 500 x 500 pixel the they are normal layers not smart objects image layers what was dragged and dropped  were  image documents or image layers not raster image files.  No pixel resizing was done and the same would happen if you copy the image layers to the clipboard and pasted the into the white document.

          Next delete the two dragged in layer in the White doc and drag the green image file on the desktop and drop it on the white doc. Your desktop should now look like this. Note the transform bounding box. The image file is being placed.  Place smart object layers always have a transform associated with them. Green image also has the same 300dpi resolution as the white doc and because the 500 by 500 px fits within the 1000 x 1000 there was not need to resize the image to fit so the associated transform is 100% in size. The same would happen if you dir a File>Place and selected the green image on the desk top.

          Next drag the red image file on your desktop and drop it on the white document. Your desktop should now look like this. What has happened is the 500 x 500 100 image was resize to match the documents 300 dpi which resulted in and image 1500 x 1500 pixels which would not fit within the 1000 by 1000 document so it was resized a second time to 1000 x 1000 pxe so it would fit in. The same would happen would happen with File>Place.

          We are almost done RAW files are not raster image file. When RAW files are Placed in they will not be resized.  When you place a RAW file in CS6 the your screen may look like this note the transform controls you can not get to the control points for something seems to change the prefence to resize place image off in CS6 on me.

          till you zoom out  a lot and resize the floating window

          Now the last part. I seem to have problems with the Photoshop preference "Resize Image During Place" in Photoshop something on my systems or in Photoshop seems to change the setting I set. It may be some Action or Script I just can't seem to find out what is changing the setting on me.

          So Photoshop work a little differently with RAW file on my machines. While they are NOT resized when placed they will be automatically be transformed to fit within the canvas if my preference remains set. Your screen may look like this in CS5 note the image is fitted within the document however the RAW image was not resize note the size percentages in the transform options in the options bars.

          If you go look back above and look at the two other two images placed in. One had no resizing done for the image resolution matched the documents resolution and fitted within the documents canvas. The second one did not have matching resolution so it was resized the result was larger then canvas size so it was resize as second time because of the preference to resized placed images had not been turned off yet.  Note both transform associated with the smart object layers w and h sizes are 100%.

          The Place of the RAW file where the image was automatically fitted to fit within the  documents canvas 1000 by 1000 pixel size is being done by associated transform assorted for the smart object layer the pixels rendered for the layer is larger then canvas size. The associated transform for the smart object layer sizes are not 100% they are 20.4% which resizes the 16 meg pixel image 4896 x 3264 240 dpi Raw image to fit within 1000 x 1000 px  document's canvas size.

          Message was edited by: JJMack

          I think the wording make sense now.

          JJMack
          TerriStone
          Adobe Employee
          TerriStone
          Adobe Employee
          October 17, 2012

          Hi. Because this forum is for beginners trying to learn the basics of Photoshop, I'm moving your question to the Photoshop General Discussion forum.

          sudarshan.t
          sudarshan.t
          Inspiring
          October 17, 2012

          This is actually a very useful feature as Photoshop tries to match the resolution and image dimension to match your current canvas size.

          If you're keen on not wanting this to happen, goto Photoshop Preferences (Photoshop > Preferences) on Mac and (Edit > Preferences) on Windows.

          As shown in above screenshot, unchecking (1) will make Photoshop NOT resize your image during 'Place'. But, keep in mind this may mess up your image sizes (depending on resolution of the image you're trying to Place). You need to match the canvas manually to fit the image you'd like to place.

          The (2) checkbox will give you Smart Objects for all placed or dragged images. This will prove very useful as you always have flexibility to edit the image that you have in your canvas, outside of the canvas itself. Auto-updates any changes you make to the SO too.

            C
            chrgue作成者
            Participating Frequently
            October 17, 2012

            Thank you for your response.
            I can understand why some people would find this feature useful but I personally don't like it when photoshop resizes (thus reducing the quality) an image without telling me. 

            For example, I just had to put a moodboard together from a folder full of images with different resolutions.  I drag the picture from the folder directly in photoshop and if the place image's resolution doesn't match the document resolution, it came come in either really small or really.  And there is no way to tell it to be at 100% of it's pixel size because the transform property says it already is.

            I almost always want to place the image at 100% of it's pixel size because I want to keep the image's original quality and not have it degraded by an automatic scaling I haven't approved or even been warned about.

            I have tried "Resize Image during place" but this option is only to resize the image to fit the canvas if it is too big at the time of the "place" and even if it is unchecked, the images get imported with the wrong size.

            I am aware of the Smart Object option but this is already checked and doesn't affect the fact the image is imported with a wrong size.

              sudarshan.t
              sudarshan.t
              Inspiring
              October 17, 2012

              I personally don't like it when photoshop resizes (thus reducing the quality) an image without telling me.

              This is not how it works. When your image is loaded as a Smart Object, the resize that happens within your canvas is lossless. Your Smart Object is the one that contains the actual pixel data. When the SO is placed within your canvas, there is no loss of quality on the image in your canvas.

              Only if you 'Rasterize' the image or Smart object, then resize the image within your canvas, you end up losing the image quality, not when the image data is contained within a Smart Object.

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