How to quickly select rectangle

Discussion in 'Photoshop' started by Robert Montgomery, May 20, 2010.

  1. Robert Montgomery

    Joel Guest

    I reportsed his/her (I don't remember the name) original message, and I
    gave Q & A to each separated confusions
    Joel, May 29, 2010
    1. Advertisements

  2. Robert Montgomery

    Voivod Guest

    To me it says he's fucked up his settings/preferences and has a serious
    problem articulating what he's struggling with.
    Voivod, May 30, 2010
    1. Advertisements

  3. Robert Montgomery

    Voivod Guest

    Perhaps he's unaware of the command?
    Voivod, May 30, 2010
  4. I apologize, guys, for not being clear. Thanks for trying to help.

    I'll rephrase the problem.

    I made an image.

    Then I expanded the canvas, so that the canvas is bigger than the image.

    I saved the file, closed it and reopened it, so the History has been
    wiped out.

    Now I want to easily select the image so I can change the image size and
    then the canvas size.

    One of suggested Ctrl-A? What's that supposed to do? Do you mean
    Command-A? I looked up "Ctrl'A" and "Control-A" in Adobe Help Viewer,
    but it didn't find anything.

    Robert Montgomery, Jun 6, 2010

  5. still isnt making much sense to me, unless you have multiple layers of
    course. as the canvas and image are the same size on a new file.

    usually you start with a canvas size you need for the end
    screen, a4 etc.

    ctrl a is PC shortcut for select all, command a is the mac equivalent
    david johnson, Jun 6, 2010
  6. Robert Montgomery

    Voivod Guest

    This isn't relevant.
    You're still not making much sense. If you're saying you've got a tiny
    image on a big old plain/transparent background zoom til you can see
    everything you want to keep then crop the extraneous. Fine tune it
    It would probably help to mention OS and version of Pshop too. Oh, and
    try stopping in more often than once a month too.
    Voivod, Jun 6, 2010
  7. Robert Montgomery

    Rainer Latka Guest

    so why dont you read the advice given in this thread? (yes, some of
    these advices have been wrong/misleading). I've proposed three solutions
    that will work:
    28 may, 15:47h+15:51h
    29 May, 14:04h and finally
    29 May, 15:39h
    the latter one coming closest to your request

    Rainer Latka, Jun 6, 2010
  8. Robert Montgomery

    Joel Guest

    Your newer cleaner question/explanation is still as clear as mud.

    1. "I made an image."

    Got it!

    2. "Then I expanded the canvas, so that the canvas is bigger than the image"

    Got the slideshow how you use the command to create another Layer/Canvas
    which happen to be larger than the original photo. BUT it still give no

    a. what you are trying to do

    b. why you want a larger canvas size

    c. do you understand the difference between RATIO, Resolution (PDI),
    Compression, and W x H etc..?
    Ctrl-A is for "PC" and PS doesn't have "Command" key I think it's only
    available in the MAC's world. I am not MAC user to know anything about MAC.

    And I would say if you want some help solving your problem then spelling
    out exactly what you want the final photo may look like instead of asking
    how to use some command(s) that you don't know. Example (general)

    1. If you want to print to a larger size.

    You DO NOT need to make a larger canvas size

    2. If you want the picture displays larger on monitor

    You DO NOT need to *move* to a larger canvas size

    3. If you want to print the *original* to 3 times larger than *previous*
    print. I hi-lite the words "original" and "previous" because I don't know
    what you have, what you did to it. Or because it doesn't matter

    You DO NOT need to make a larger canvas size

    Example, I just printed 1/2 dozen 24x36" prints for my client from the
    previous 4x6" print, and I didn't need to make the 24x36" canvas as it's
    already been there from the very beginning.
    Joel, Jun 6, 2010
  9. I'm making images so that they have white borders when I print them on
    white paper or artist's canvas.

    I'm taking some of my files that already have white borders and I want
    to expand them so that they print at a bigger size.

    To do that I need to isolate the image from the canvas.

    When I make a white border all around the image, the image size then
    includes the canvas size.

    I want to isolate the image from the surrounding, white border, so I can
    trim the border, blow up the image and then add back a border size which
    in most cases is different from the previous canvas size.

    Therefore, in most cases I'm adjusting not only the image size, but also
    the size of the white border.

    The white borders are not the same on all sides. They need to be shorter
    on the top of the image, wider on the bottom, and usually wider oo the
    right than the left.
    So that the white borders on the printed images is different from size
    of the white borders that I had made and printed previously,
    What we Mac users call "Command" is the key two keys to the right of the
    Control key. Pressing that key along with the "A" key "selects all".
    I know that. The reason I need to adjust the canvas size is because I'm
    more experienced now at using canvas pliers, so I've concluded that I
    need a border of 2.25 inches around my images. This includes 1.375
    inches to wrap around the sides of the wooden stretcher bars, and .875
    inches for the back of the stretcher bars, for the canvas pliers to
    grip, so I can pull the canvas tightly around the wooden bar, before
    stapling the canvas to the wooden stretcher bars.

    Therefore, the previous canvas sizes that I've designated in P CS3 are
    now not the right sizes and need to be adjusted.
    I know that.

    I'm using CS3 on a Mac. (I found a Mac-specific Photoshop newsgroup –
    a.p.macintosh – but it has only 15 messages in it, so I'm less likely to
    get help there. This group now has 479 messages in it.)

    Robert Montgomery, Jun 6, 2010
  10. Thanks, Sir Rien.

    That solution has already been proposed by someone and rejected (by me)
    in this thread, because the canvas is white, and some parts of the
    images are also white – or near white – so even with feather radius set
    to the minimum (0.2 pixels) some areas of the image get selected along
    with the entire border when I do Alt > click on the canvas, with the
    magic wand tool.

    Robert Montgomery, Jun 6, 2010
  11. Robert Montgomery

    Voivod Guest

    Or anything else for that matter.
    Voivod, Jun 6, 2010
  12. I tried Image > Trim, as you suggested. It did trim some pixels, but not
    the right ones.

    I want the border to be removed, and that's not what the Trim command is

    Adobe Help says this about Trim:

    Choose Image > Trim.
    In the Trim dialog box, select an option:
    Transparent Pixels to trim away transparency at the edges of the image,
    leaving the smallest image containing nontransparent pixels.
    Top Left Pixel Color to remove an area the color of the upper left pixel
    from the image.
    Bottom Right Pixel Color to remove an area the color of the lower right
    pixel from the image.
    Select one or more areas of the image to trim away: Top, Bottom, Left,
    or Right."

    Despite that description, I don't understand what Trim is for, but it's
    not for removing the canvas surrounding a square or rectangular image.

    However, I think I just discovered the best solution.

    I just made my grid very fine – down to the pixel level. In P >
    Preferences > Guides, Grids, Slices snd Count, I made Guidelines every 1
    pixel, and Subdivisions every one pixel.

    With those preferences set, I can zoom to a corner of my images at about
    300 percent, instead of zooming in all the way to 3200 percent.

    At 300 percent zoom, I can click and drag the Rectangular Marquee Tool
    diagonally from one corner to the opposite corner of the rectangular or
    square image, and the marquee snaps precisely to the edge of the image.

    If I zoom out any further and try this (i.e. 200 percent)then I'm less
    likely to get the rectangular Marquee Tool to snap precisely to the edge
    of the images; I'll more likely get a strip of white canvas included in
    the selection, or to miss a little strip of the image at the edge.

    I have the View > Snap, and also the View > Snap To > Guides both selected.

    At 300 percent magnification, I can scroll diagonally from one corner of
    the images to the opposite corner of the images (to select the images)
    much faster than if I'm zoomed all the way (3200 percent in the case of
    the file I'm currently working on.)

    Thanks for your attempts to help, everyone.

    Robert Montgomery, Jun 6, 2010
  13. Robert Montgomery

    Rainer Latka Guest

    ok, lets try to do it together:
    first we'll perform the step by which you increased the canvas size:
    * you've got an image of, say, 300 px by 500 px
    * you're increasing the canvas size using "canvas size" in the image
    menu by, say, 100 px in each direction. So this results in a new total
    size of 500 px by 700 px.
    * now we are at the situation when you posted your question: an image
    surrounded by a border 100 px wide. This border is monochromatic, since
    the "canvas size" command does exactly this.
    * next you're asking "How can I quickly select a rectangular image in
    CS3?" and "The canvas size exceeds the image size.“
    * in this situation the trim command removes exactly the border that you
    have created using the canvas size command.
    of course it does exactly this. Since you used the canvas size command
    to create the border which is therefore monochromatic, the trim command
    will remove all of it unless you deselected some of the tick marks in
    the trim options
    yes, of course it is. This is exactly what it's meant for. Just try it,
    following my example.
    you might still want to learn / understand what the
    select > transform selection
    command is intended for. ;-)
    you're welcome
    Rainer Latka, Jun 6, 2010
  14. Robert Montgomery

    Joel Guest

    Yup! this is understandable and I bet most people can help you now.

    Lets assume the photos are 2:3 RATIO and you want a little BLANK boarders
    around them. There are MANY different ways but I will try to give one of
    the simple way to make it easy for you to follow, to adapt the idea to
    create your own style.

    1. Create a BLANK canvas with H x W x R little larger than the photos you
    gonna added to it.

    2. Set the CROP tool to 2.# x 3.# and # is the size of the WHITE boaders you
    want to add to the original photos. Example 2.1 x 3.1 and you only have to
    create ONCE/ONE

    3. Now, just drag and drop the original photos to it and you have it. Or
    you drag & drop the larger canvas to the original photos (it's the same).
    Now you are falling down the dig again. It sounds like you don't
    understand the meaning of "RATIO" and I think we may have to have more
    questions to ask you later.

    *Unless* you are trying to increasing the printing quality for the larger
    print then it's another story. But I am pretty sure you are talking about
    the RATIO
    ONCE you got the idea (technique) then different color is the least thing
    you need to worry about. Or once you get the main thing (blank canvas made)
    then you can be able to CHANGE to any of 256,000 colors with lighting speed.
    Are you talking about the boarder you WANT or the boarder you have problem

    Shorter TOP = Portrait
    Wider BOTTOM = Landscape

    Do you know how to use Rotate/Flip/Move etc. command?
    Explained about RATIO above
    Then you should have no problem flowing the RATIO method
    I don't think you know that. And you need lot more answer than just
    Photoshop command alone.

    1. First, if you really want the help quicker without many back/forth
    messages asking you what you really want, then you need to give more detail
    or exactly what you really want or really need.

    Example, 2.25" of blank boarder around the image is already exceeded the
    4x6" print.

    2. If you want a VERY LARGE print then at least give some hint. Example
    4x6' (or 48x72") then someone here good with mathematic may give you the
    calculation (of the exact RATIO).

    3. And *IF* you need help with the photography, cropping, framing etc.
    technique, tips etc. then it's another story. I am a professional
    photographer and I do retouch and do poster size print quite often, and I
    never go through the problem you try to do.

    a. CROPPING - leave some background

    b. FRAMING - put a sheet of WHITE (or whatever color) of paper (you know
    the thick paper they use for framing) over the photo. I don't do
    framing, but that I sometime suggest my clients to do (idea)
    It's so hard to get any clue from you, and I still have no clue what size
    you want to print. So I may just give some general information hoping some
    may answer your question.

    1. *If* you need to do some heavy retouching for large print (lets say
    24x36" or larger) then I would suggest to work on 16-bit (I never need
    32-bit so never used it). For smaller print or light basic adjusting then
    8-bit would be plenty good.

    And I am talking about good IQ (Image Quality) taken by good lens and
    professional DSLR camera. Around 10MP would be okay, 15-20+MP would be

    2. 150-300 PPI would be plenty good (more won't bite ya). And if you want
    to push it over the edge (less than 150 PPI) or extra insurance (whatever
    you call it, or taking advantage of newer techinology etc.) then you may
    want to Increase the Size by **** PERCENTAGE****

    Yes, *PERCENTAGE* like 100% 150% etc. *not* larger W x H x R

    Other than that I can give you some secret that I NEVER use TIFF (I have
    nothing to against it but just don't need it) but JPG all the way. Some
    photolab may suggest to use .TIFF but they would accept JPG, and I don't
    like the idea of uploading 200-300MB TIFF file (single file as I tested) so
    I continue using JPG and still happy with the result.
    Joel, Jun 6, 2010
  15. Robert Montgomery

    Joel Guest

    I don't think you get it (yet).
    Joel, Jun 6, 2010
  16. Well, that's interesting. I did the experiment that you suggested, and
    it worked!

    But why on Earth are the results inconsistent? With some of my images,
    Trim trims off the last amount of canvas that was added (which is half
    an inch off the top of each image. But there's still a white canvas all
    the way around those images.

    With other files, there's no change to the image size or the canvas size
    after doing Image > Trim. I think there might be something invisible on
    my canvases, because when I select the white borders with the
    Rectangular Marquee Tool (just a rough selection) and go Edit > Clear
    (so that the checkered clear background shows in the canvas areas
    instead of white) and then go Image > Trim, those clear borders ARE
    trimmed off.

    I'm so confused about this.
    What good does that do? Again, I'm back to the problem of Select >
    Transform Selection > pulling the four selection handles to the edge of
    the image/canvas intersection, and not being able to grab the image
    precisely at the intersection of the image and the canvas.

    I think the discrepancy is because you're working on timy ones (500 by
    700 pixels) in which it's easy to get precision snap-tos, whereas I'm
    working on big files (such as 2,800 pixels by 5,800 pixels) in which
    precision snap-toing is difficult.

    Robert Montgomery, Jun 7, 2010
  17. YOU get it, Joel. You don't get any of what's been written in this
    thread, I think.

    I asked a simple question: how to precisely select a rectangular image
    that has a white canvas around it.

    But in your last letter you wrote again that you still don't understand
    the problem, and went on various irrelevant tangents about picture
    framing, how to get my images to appear bigger on my screen (I never
    gave any hint that I have that problem), claimed irrationally that I
    don't understand ratios because I wrote that I want to alter my canvas
    sizes, and gave the absurd advice to use JPEGS instead of TIFFs for high
    quality images.

    Robert Montgomery, Jun 7, 2010
  18. Robert Montgomery

    Voivod Guest

    No, you didn't. You asked a nearly gibberish question and took almost a
    month to barely articulate what you were actually trying to accomplish.
    Voivod, Jun 7, 2010
  19. I never asked about 'different color' or 256,000 colors.
    What does that have to do with my question? Nothing.
    Never mind, Joel.
    What the hell do you know about what I know about Photoshop? A million
    dollars worth of my art (and associated framing that's been added to it
    by picture framers) have been sold, and I depended on my knowledge of
    Photoshop to achieve that. I'm quite knowledgeable about Photoshop to
    have achieved that level of sales, and probably know more than you do
    about it, from what I can tell.
    A Photoshop expert who knows how to easily select a rectangular image to
    isolate it from its canvas can say how to do that without know the
    reason? Why does anyone want to make any kind of selection in P? To get
    things done.
    How would you know what canvas size I need? You know nothing about what
    my canvas size needs to be. You don't have a clue of what you're talking
    That's because you're clueless.

    So I may just give some general information hoping some

    For smaller print or light basic adjusting then
    Malarkey. I've always used eight-bit even for five-foot-wide
    high-quality art prints shown at high-end art galleries, and I never had
    a problem with that. Again, you don't know what you're talking about,
    and it has nothing to do with how to select an image to isolate it from
    its canvas.
    Totally irrelevant.
    I do need TIFFS and your 'secret' goes against all sound image quality
    advice and is a giveaway that you're an amateur.

    but JPG all the way. Some

    Good for you, but you're not a professional photographer making large
    files, if you're using only JPEGs.
    Robert Montgomery, Jun 7, 2010
  20. That's plain English. Maybe you don't understand plain English. What's
    so hard to understand about my explanation?

    Robert Montgomery, Jun 7, 2010
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.