Photoshop :: Resampling And Transformation
May 21, 2009What happens to the image when I transform (Ctrl +T) the image regarding to its re-sampling interpolation aspects? By transform I mean make it bigger or smaller.
View 1 RepliesWhat happens to the image when I transform (Ctrl +T) the image regarding to its re-sampling interpolation aspects? By transform I mean make it bigger or smaller.
View 1 RepliesIn the image size dialog you can determine what gonna happened with the pixels when you change the size of an image by check or uncheck the re-samping. But what happens to an image when I commit a transformation operation (Ctrl + T)?
View 2 Replies View RelatedTo make this clear in my (Holy & Venerable) head once and for all:
The "resampling down" option should be applied when resizing a picture to a smaller size (Thus, I should preferably use "bicubic smoother"?)
Whereas resampling up will give best results when making a picture bigger ("bicubic sharper" for this one?)
Also, what is your experience of these resampling methods in terms of quality loss? I'd assume quality loss will be greater whenever you try to "create pixels out of thin air" as in resizing pics bigger?
I've tried to figure out a way to do a batch-resampling in photoshopCS2 (Bridge) but I can not figure out how. My books / Helpfunction does not mention it either (as I can see). I've also tried googling.
Is it possible?
I do not want the pixel-size to be reduced before I do the proper croping and stuff on my pictures for web. I need them to go down from 300dpi to 72dpi, then crop them and then resize them to 800x600 (aprox)
I take digital images in RAW format, usually quite large, and then open and save the image as a large format Tiff file. At that point, I have to resize the image for the purpose at hand. Here goes...
I normally take the image down to roughly 4x6 inches (I keep the "Constrain Proportions" box checked) and desire a final resolution of 300dpi. Because I'm starting with a much larger image also at 300dpi or higher, this isn't a problem. However, I'm unsure about checking the "resample image" box.
My question is, should I check this box? I'm going to insert my desired resolution dpi regardless, so is it necessary to check the box or should I leave it unchecked? I'm starting to think that the purpose of leaving it checked is to perform roughly the same function as the "constrain proportions" box - to allow the software to automatically resample the image based on the resizing I do. But again, I have a particular resolution in mind and so I'm wondering if it's okay to just uncheck the box and insert my desired resolution. Or, even leave it checked but just go ahead and insert my desired dpi resolution as planned.
I have a large image (21.6 x 14.4in, 51.3MB, and 240ppi) that I need to reduce to approx. 7 x 5in, under 30MB, and 300ppi. First, I resampled the image down to 7 x 4.667in, 5.38MB, and 240ppi. Later, after I realized that I forgot to change the resolution, I resampled the image up by changing the resolution to 300ppi. I was left with a final image that had the following characteristics: 7 x 4.667in / 8.41MB / 300ppi. Since the file size is larger, I'm assuming that Photoshop did a bit of guesswork in order to add information back into the file.
If I would have changed the resolution from 240ppi to 300ppi at the same time that I resampled the image down to 7 x 4.667in, would I have gotten a better image? In other words, should I have done all of the adjustments at the same time?
When I resample in CS6 using bicubic sharper, I'm getting what looks like a gray on black plaid pattern in the darkest areas of the image.
View 13 Replies View RelatedI can only resize an image using pixels as unit when resampling is turned on. Why can't I resize in pixels without resampling? I can use all the other units but not pixels...
Photoshop CC, Win 7
Is cropping to a larger image the same thing as resampling...? I believe I was told it handled the information differently without adding extra pixels... is this true.?
View 3 Replies View RelatedI am a Creative Cloud member, and have downloaded all of the products and they are all up to date currently. The issue I have is, I see all these people using a new resampling setting called "Preserve Details". They go Image ------> Image Size, and then the window pops up. Now their window already looks different then mine. Mine looks like it did in CS4, theirs has an image preview inside the window, plus they have another resampling option available to them. Why doesn't my have this option?
I have tried to upload an image to show you what I mean, but I am unable to upload via my computer, and yes it is the correct size (>450 pxs wide by >500 pixels tall, 131 KB).
Ps CS6
OS X 10.6.8
Save For Web offers 5 resampling algorithms (the same 5 as in Image Size, ignoring "Bicubic Automatic", of course) for when the output is being resized.
All choices except "Nearest Neighbor" output an identical image (which is different to all results of Image Size). Although the "Bilinear" output contains the same pixels as the output of the 3 bicubics, its file size is slightly different than their shared file size.
A few weeks back my illustrator started resampling all of my high-res images to 72 dpi upon opening.
example:
Image A: Resolution 300, 877 x 591
I'll open that image in Illustrator (which, I've been doing for 8 years without problem) and here is what happens --
I get a bounding box of 877 x 591 - HOWEVER, the image is floating within that box at (what I'm guessing is around a 72 resolution) 213 x 142 pixels.
If I save the file out at 72 dpi - the image pulls up the right size in illustrator - it's just any image file that's a higher res than 72.
I'm running CS5
Everytime I Resample pictures that are big in size, and resolution, and I reduce the resolution and the size, the end result is always blurry. (doesn't matter if I use Draw or Paint)
- image is 39.4"w by 29.556"h @ 72 DPI, RGB, JPG (when opened in Paint or imported into Draw)
- I want it to be .976"w by .736"h @ 300 DPI ... yes alot smaller
Ultimately, once at the small size, I need to take all artwork (bitmaps, text etc) and make one 300 DPI bitmap to be run on the press.
I have tried ...
- Resampling the original sized image, that is 72 DPI, into 300 DPI and then Resampling the size from there and end up with Blurry (left on Anti-Alias and Maintain aspect ratio)
- Resampling size and DPI, in one step, and end up with Blurry (left on Anti-Alias and Maintain aspect ratio)
- made the image proportionately smaller (now DPI is 2,089) and then Convert into 300 DPI image, and end up with Blurry
This happens only occasionally. I have a file open in PP5. I resample the image -- reduce the physical size from, in this case, 53 inches to 8 inches high, and increase resolution from 72 to 300 dpi, with the resulting file size smaller than the original. I save the file, then import into my layout in Coreldraw. The imported file is back to 72 dpi and the physical size is huge. I reopen the file in PP, resample again, and resave under a new file name. Same problem occurs when I import into Draw. Of course, I can physically shrink the file to 3 inches high and the resulting dpi will be 300.
View 13 Replies View RelatedI am trying to create a CD cover and the back side is one solid color with the visual of a page turning down. How can I do this. I have been working with the 3D transformation, but not sure if this is the best way.
Also, the only way I can choose Filter - 3D Trans is when I am in Mask. At home I can choose it under a regular layer. Does anyone know why this is happening. I get the cone the way I want it, but when I hit OK it is in mask and not a solid cone.
Does the transformation box offer a good and bad choice?
The pic below shows the box with red and green sections. Is that just an odd thing or is that there for a reason?
Something like "if it's red you shouldn't move it and if it's green you can move it" kind of thing.
I have an image and I would like to animate it's transformation into a skewed and distorted shape, e.g.: I'd like to show the steps of a rectange being distorted into a non-isosceles trapezoid. Is this possible?
View 16 Replies View RelatedI know RGB to CMYK color transformation may not exact. But how could it have so much difference?
I have a RGB = (28,97,255) want to transform into CMYK.
Which number should I use?
[URL]...
Basically, I have a text and I want it to "circulate" around a certain point, with perspective and readability as demonstrated on the picture.
I'm trying to warp a rectangular shape into something more arched, like the image below. There doesn't seem to be any transformation options under the Edit -> Transform menu. Can this be done? Can it be done to at least 180 degrees?
View 3 Replies View RelatedWhen I transform a smart object, its filter mask doesn't get transformed as well. The same holds true for the mask for the smart object itself, but one can put the smart object into a group and add the mask to the group as a workaround.
But what should I do with the filter mask ? The only workaround I was able to think of, was to copy the filter mask to another layer in the same group as the smart object, transform the whole group and put the filter mask back to its original place. But I can hardly imagine that this is the suggested way to work by Adobe, or is it?
All I could find in the help is this:
> By default, layer masks are linked to regular layers. When you move the layer mask or the layer using the Move tool, they move as a unit. Masks applied to Smart Object layers, including filter masks, arent linked to layers. If you move a filter mask or a layer using the Move tool, they do not move as one unit.
Every time I rotate a layer, that layer is copied and then rotated. How do I just rotate a layer without making copies? i'm using CS5 with the latest updates.
View 2 Replies View RelatedI downloaded a trial of Adobe Photoshop CC and when I started it up I noticed these dotted lines on the transformation control lines. I sure it's not a new feature because I did not see this in videos of people using Photoshop CC. My computer also meets all the requirements for the application and it runs really smoothly. This really bugs me because it glitches sometimes too.
Here are images of the problem:
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I have a 72 dpi smart object with text & images inside another 72 dpi SO and need to transform it (distort and/or perspective). Once I do so the anti-aliasing becomes very poor thus making the SO's text almost illegible. Is there a way to improve this? Maybe change the way the SO is being anti-aliased?
View 9 Replies View RelatedI have a sample 3d eCover and I want to fit an image over the front part. However, I'm having a hard time transformating my image to perfectly the front layer. Is there any option to apply the same transformation of my front cover layer to my image?
Additional info:
1. The front cover layer of the 3D eCover is not yet merged with the other layers. So, I can still edit it.
2. I'm using Adobe Photoshop CS6.
CS6 This is going to sound confusing. While using transformation tool you see the frame for it or (points for use), is there any way to hide that while using it, make it transparent on screen,in other words.
View 4 Replies View RelatedI have some transformation parameters from WGS84 to ED50 and I dont know how to use them...How can I use these transformation parametrs in Civil3d ?
View 1 Replies View RelatedI am giving a drawing containing all the contour objects in a NAD 83 coordination, I need to transfer them to a project coordination system. I am given with the origins of both system. For NAD 83, it is N6360000 E467000, for the project it is N50000 E8000. I tried to do the transformation using Toolspace->Settings->Drawing Settings->Tranformation, and changed the Local Northing/Easting and Grid Northing/Easting, but does not seem to solve the problem.
View 1 Replies View RelatedIn Maya, how do I do a transformation sequence. my plan is to have the character transform into a tiger human hybrid that is at least twice the size. (also its texture changes as it morphs)and can there be a bone rig that grows along with it?
View 1 Replies View RelatedI am using Civil 3d 2012 and I have a dwg that is in AR North Nad83. The client needs it put in UTM 15 Nad83. Is there an easy way to do this?.
AutoCAD Civil 3D 2012 SP4
Windows 7 (64)
I have Lidar files both IMG files and LAS files. I work in Civil 3D so have most Map 3D functions. We also have IDSP 2014 so I have a full version of Map 3D 2014 in there. The Lidar is in UTM - Meters. I need to create a Civil 3D Surface in State Plane - Feet.
Civil doesn't work with IMG files. I have no problem creating a Point Cloud from the LAS files using that to create a Surface. With the Zones set correctly in the drawings I can get the horizontal aspect of the data into State Plane. However the Elevations are still in Meters. If the LAS files were in ASCII. I would convert them directly, but they're not.
Is there any method in Map 3D to do a vertical transformation on either of these file types?
Civil 3D 2012 SP 3 / IDSP 2014
Dell Precision T7400, Xeon CPU 3.16 GHz
Win 7 Pro, 64-bit,12 GB RAM, Nvidia Quadro FX 4600