Image size or transform

I'm placing multiple image files of high resolution photography in Photoshop CS4 for output to very high quality inkjet as individual sheets. In the past I have always scaled, rotated (if needed) and sharpened the original files before placing them in the final Photoshop document at 100%, which is then sent to the inkjet printer.
In some other posts I have read that there may be no reason to do this, and that using Transform will result in the same or very similar quality and that Transform uses the default Image Interpolation algorithim set in Preferences. (I use Bicubic as the default) and sharpen accordingly for output. (I am aware of the differences between the different algorithms.)
Using Transform would save several steps and speed up the whole process so if there is no downside to this route I would like to do it that way. Though if I understand correctly it is advisable to use a smart object of the original layers to avoid degrgation from repeated transforms. Is the use of Transform any less desirable when rotating files? I also read in another post that there was a rounding error inCS3 and earlier which was problematic when rotating and scaling images with Transform. Does anyone know if this is still the case in CS4? In any case is this a non issue when transforming a smart object?
Thanks for your advice!

Here's a link to a very high quality image I took a couple of months ago at Bombay Beach, Salton Sea, Ca. Canon 1DsMKIII. Zeiss 21mm 2.8 Distagon f/11. The first image is a screenshot with side by side Bicubic and Bicubic Smoother renderings from a CaptureOne Pro processed version of an unsharpened raw (no sharpening or NR in C1 or Ps) and then interpolated up 200 percent. Are there differences? Yes. Huge. No way. In fact, there are areas where the Bicubic Smoother looks very slightly better and other areas where the straight Bicubic is noticeably better. Rez a 1DsMKIII file 200 percent and you can easily make a 40 X 60 inch print. The second image shows you the full frame with an approximate crop to give you perspective.
The bottom line is that for most of the work that most people do, you'll never ever see the difference in any kind of print. If you're going to make a ginormous print that's going to be scrutinized by print nazis with reading glasses, then you might see a slight benefit one way or the other depending on image content. If you're doing production work and need to crank, Free Transform will be more than adequate.
http://www.peterfigen.com/ocs/bicubicvsbicubicsmoother/

Similar Messages

Free Transform Vs. Image Size - Quality Impact?

I'm using Photoshop CS3 and I have a quick query regarding the difference in image quality between resizing an image using 'Image Size' compared to 'Free Transform'.
I'm laying out several individual photographs on to a page (with some precision) and therefore using the transform function to scale the image to the right size is certainly the quickest and easiest option. However, I have always been keen to ensure maximum image quality and I don't know if this will degrade the image more than resizing the image using 'image size' before pasting it (obviously with a lot more effort involved).
Any thoughts?

Many thanks for your replies - that's very useful.
I should have mentioned that I will always be resizing down. Also, when performing my standard method for resizing (using Image Size) I always stick to the standard Bicubic then follow up with sharpening (specific for my output). What you've told me is great as it means I can simply perform the transform of each image and then an output sharpening on the entire canvas. This should be equivalent to resizing, sharpening and then copy-paste of individual images to the same canvas.
Using smart objects (which I seldom do at the moment) is an interesting thought, which I'll have to look into. I could copy a smart object from each of my source files, resize and then perform a smart object sharpening to them...
Many thanks again!

Aperture/Photoshop plug in and image size

I'm having a problem I don't really understand. I have Aperture 3 and I have CS5 that I'm trying to use as a plug-in for Aperture. This is half an Aperture question and half a Photoshop one so I hope someone can answer it for me.
In Photoshop I made an "action" that is a sort of raised beveled watermark for my photos.
I open one of my images in Aperture and "fix" it - soften the skin, blur the background (whatever...) then I go to the top menu item "Photos" and go down and pick "edit with Adobe CS5." And my image opens in Photoshop. I go to the menu and pick the watermark action but when it works my watermark can't really be "read" because it's not fitting on the photo, it's too big and falls off the edges. The photo is 1241x1280 px.
But here is the odd thing. If I take that same photo, the very same size 1241x1280 and open it directly in photoshop, completely bypass Aperture, and run the watermark action, it's actually a bit small (but usable) it fits fine in the very same photo! When I check the image size in Photoshop it is the same size (regardless of if I open in photoshop directly or go there from Aperture).
So this problem only seems to happen when I edit the photo from Aperture. I'm new to both Aperture and Photoshop (crazy to try and learn 2 programs at once) and I don't know if I can make just the watermark layer in photoshop smaller. But again it fits fine if I apply it directly from Photoshop bypassing Aperture.
Does anyone know why this happens and how I can make the watermark work? Or can I make a watermark in Aperture?
Thanks for any help,
Susan

susan-kelly wrote:
Like I said when I rescale it they way you said to do in photoshop it changes the size and distorts it a bit.
If you hold down the 'Shift + Option' keys while scaling, the text, shape or raster object will not distort and will resize from the center (AKA - maintain aspect ratio).
I run the full version of PS, so am not sure if the commands are exactly the same if you are running PS Elements, but there is a command at 'Layer menu > Layer Style > Scale Effects..' which can be used for scaling the bevel settings to match the scaling of the watermark item.
One exact way to do this in PS full version is to choose the Edit > Transform > Scale command and then use the option bar fields under the main menu bar to change the 'H' (Height) and 'W' (Width) percentages equally (to say 70% in each) and then use the aforementioned 'Layer........Scale Effects' command and enter 70% in that dialog. This should reduce the watermark and effects appropriately without distortion.
Note - indeed both programs are very deep (especially PS), but that just gives you more fun to learn as you go. Don't worry about mastering either, just work within a structured workflow so you can take the steps at your own pace.
Again, I am not sure what version of PS you are running, but the one book I suggest looking into more than any other is at the link below. It is somewhat dated, but the information is completely relevant and covers the general usage of Photoshop to make anyone comfortable with the tool set.
http://www.amazon.com/Adobe-Photoshop-Unmasked-Science-Selections/dp/0321441206/ ref=sr_1_1?ie=UTF8&s=books&qid=1307824869&sr=8-1
The companion website is still up and you can download all the images used in the book if you want to practice on the same images he outlines. Well worth a look if you want to learn Photoshop.

How to resize layer in percentage relative to image size?

Hi,
Say I have an image that is 100x100 pixles. And I want to take one of the layers and resize it to 50% of the image size, so that it is 50 pixles. How can I accomplish that?
The reason I ask, is that have multiple images all with different size. But I have a signature (ie. watermark) that is always the same size. I want to be able to place this signature, and then resize it to XX% of the image it was placed on. That way, it should always have the same proportions.
Thanks in advance!

You can scale by percentage of the original layer size going to Edit > Transform > Scale. In the transform options menu, there is an option to scale by percentage - just make sure that you click on the link icon between the Height and Width fields to maintain the aspect ratio of your layer.
However, if you wanted to scale a layer relative to the canvas size, I think you would need to do some scripting or use actions... you might want to ask around on the Photoshop General Discussion or Photoshop Scripting forums to see if anyone has a solution.
Kendall
(Edited - misinterpreted original question)

Layer image size independent of Background?

Is it possible to change the image size in Layer 1 independently of the Background image?

If simply scaling a Layer with Edit > Transform > … is not enough then maybe you should explain what you mean in more detail.

Why does rotating a layer cause image size to increase?

I was working on the top layer of a PSD document and did a custom rotation of 45 degrees so I could get a better painting angle. When I rotated the layer back I noticed my image size had increased from 10 x 8 inches to 18.3 x 18.3. When I tried to resize the image back to 10 x 8 it made my image fat and squatty. Any ideas what I did wrong when rotating? I just wanted a better wrist angle for stroking lines...

This is an example of using Image>Resize>Reveal All.
If you rotate a layer, using free transform or Image>Rotate>Free Rotate Layer,
then setect the move tool, you should see a bounding box well outside the original image.
This is the part of the photo you can't see after rotating the layer.
If you then were to go to Image>Image Size>Reveal All, elements makes those areas visible.
The only thing about rotating images or layers at angles other than 90 degree increments,
is that might degrade the image some.
MTSTUNER

Help with displaying image using OpenGL ES sample code - image size prb

I am using some sample code that currently displays an image 256x256 pixels. The code states the image size must be a power of 2. I have tried an image 289x289 (17^2) and it displays a square the same size as the 256x256 with a white background. I want an image 320x320 displayed. Should be obvious for people familiar with OpenGL. Here is the code which displays the image and rotates:
- (void)setupView
// Sets up an array of values to use as the sprite vertices.
const GLfloat spriteVertices[] = {
-0.5f, -0.5f,
0.5f, -0.5f,
-0.5f, 0.5f,
0.5f, 0.5f,
// Sets up an array of values for the texture coordinates.
const GLshort spriteTexcoords[] = {
0, 0,
1, 0,
0, 1,
1, 1,
CGImageRef spriteImage;
CGContextRef spriteContext;
GLubyte *spriteData;
size_t width, height;
// Sets up matrices and transforms for OpenGL ES
glViewport(0, 0, backingWidth, backingHeight);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrthof(-1.0f, 1.0f, -1.5f, 1.5f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
// Clears the view with black
//glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClearColor(255, 255, 255, 1.0f);
// Sets up pointers and enables states needed for using vertex arrays and textures
glVertexPointer(2, GL_FLOAT, 0, spriteVertices);
glEnableClientState(GLVERTEXARRAY);
glTexCoordPointer(2, GL_SHORT, 0, spriteTexcoords);
glEnableClientState(GLTEXTURE_COORDARRAY);
// Creates a Core Graphics image from an image file
spriteImage = [UIImage imageNamed:@"bottle.png"].CGImage;
// Get the width and height of the image
width = CGImageGetWidth(spriteImage);
height = CGImageGetHeight(spriteImage);
// Texture dimensions must be a power of 2. If you write an application that allows users to supply an image,
// you'll want to add code that checks the dimensions and takes appropriate action if they are not a power of 2.
if(spriteImage) {
// Allocated memory needed for the bitmap context
spriteData = (GLubyte *) malloc(width * height * 4);
// Uses the bitmatp creation function provided by the Core Graphics framework.
spriteContext = CGBitmapContextCreate(spriteData, width, height, 8, width * 4, CGImageGetColorSpace(spriteImage), kCGImageAlphaPremultipliedLast);
// After you create the context, you can draw the sprite image to the context.
CGContextDrawImage(spriteContext, CGRectMake(0.0, 0.0, (CGFloat)width, (CGFloat)height), spriteImage);
// You don't need the context at this point, so you need to release it to avoid memory leaks.
CGContextRelease(spriteContext);
// Use OpenGL ES to generate a name for the texture.
glGenTextures(1, &spriteTexture);
// Bind the texture name.
glBindTexture(GLTEXTURE2D, spriteTexture);
// Speidfy a 2D texture image, provideing the a pointer to the image data in memory
glTexImage2D(GLTEXTURE2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GLUNSIGNEDBYTE, spriteData);
// Release the image data
free(spriteData);
// Set the texture parameters to use a minifying filter and a linear filer (weighted average)
glTexParameteri(GLTEXTURE2D, GLTEXTURE_MINFILTER, GL_LINEAR);
// Enable use of the texture
glEnable(GLTEXTURE2D);
// Set a blending function to use
glBlendFunc(GL_ONE, GLONE_MINUS_SRCALPHA);
// Enable blending
glEnable(GL_BLEND);
// Updates the OpenGL view when the timer fires
- (void)drawView
// Make sure that you are drawing to the current context
[EAGLContext setCurrentContext:context];
glBindFramebufferOES(GLFRAMEBUFFEROES, viewFramebuffer);
glRotatef(direction * 3.0f, 0.0f, 0.0f, 1.0f);
glClear(GLCOLOR_BUFFERBIT);
glDrawArrays(GLTRIANGLESTRIP, 0, 4);
glBindRenderbufferOES(GLRENDERBUFFEROES, viewRenderbuffer);
[context presentRenderbuffer:GLRENDERBUFFEROES];
}

+I am using some sample code that currently displays an image 256x256 pixels. The code states the image size must be a power of 2. I have tried an image 289x289 (17^2)+
The phrase "a power of 2" refers to 2^x so your choices above 256 are 512, 1024 etc.
The texture size has nothing to do with the displayed size - OGL will stretch or shrink your texture to fit the size of the polygon you're displaying it on. I recommend you scale your image to 256x256 and work on make the polygon the size you want and work on your image quality from there.
You can work on the size or orientation of the poly surface to make it larger but OGL doesn't support setting a model to a screen image size or anything like that. That sounds more like a Quartz or CoreGraphics kind of thing if you want to set an exact screen size to the pixel.
HTH,
=Tod
PS You can display your code correctly by using { code } (without the spaces) on either side of your code block.

Scale a layer so it matches the image size. (Automate)

I need to scale a layer so it matches the image size.
The problem is that i need to automate this procedure and apply on a range of images all with different resolutions. (This is why i can't use CTRL+T and just drag the corners of the layer so it fits the image)
The layer that i need to resize is 2000x1500 pixels.
The images that i need the layer to match varies between 3000x2000 pixels and 5000x4000 pixels. (I know all about quality loss when i scale UP so please don't give me a lecture this).
It doesn't matter if the layer proportions changes.
I use Photoshop CS5.

jojonsson wrote:
I need to scale a layer so it matches the image size.
The problem is that i need to automate this procedure and apply on a range of images all with different resolutions. (This is why i can't use CTRL+T and just drag the corners of the layer so it fits the image)
The layer that i need to resize is 2000x1500 pixels.
The images that i need the layer to match varies between 3000x2000 pixels and 5000x4000 pixels. (I know all about quality loss when i scale UP so please don't give me a lecture this).
It doesn't matter if the layer proportions changes.
I use Photoshop CS5.
You state layer but do not state much more. Do you know how many layers these files will have. Will it always be the same layer in the layer stack that needs to be transformed. You state that it doesn't matter if the layer proportions changes by that do you mean you don't care if the layers aspect ration changes and its content becomes very distorted. Layer also supports transparency they need not be a rectangle transforming these layers will not fill in the transparent area or make the rectangular.
You may be able to automate this with a script. Install the ScriptListener and perform the transformation you want to do is steps. Use Ctrl-T set the anchor point to the top left corner and move the layers top left corner to the canvas's top left corner by entering 0 in the x and y fields . Then do a Menu Image size just to get the width and hight of the canvas in pixels and to make sure that the transform is written to Photoshop's script files. Then do a Ctrl-T again with the anchor point top left set the w and h fields to the width and height pixel sizes of the canvas. Also record these steps i an action so you can see how Photoshop does the transforms. You will see Photoshop records the steps and the value he used for the move to Top Left corner were calculated from the Layer original location. You would need to make this same calculation in the script. Un install the plug-in and extract the transforms steps from the Photoshop script files you may now have the information you need to do the transforms you will still have to learn Photoshop scripting to learn how to get document canvas sizes and layer sizes and process the layers. Not an easy task.....

Document sizes vs. imported image sizes

I have to export images and text from InDesign to Pages. The InDesign document is set at 64po 85p4 which is roughly 8.5 x 11.00 inches.
I have my Pages doc set to 8.5 x 11.00 and my plan was to import the iInDesign pages as images and place on the Pages document so when I add text and images I can go by the images , follow?
I figured that once I saved and hit Choose in Pages and import each image of each page from InDesign those would be the exact size of the document size in Pages 8.5 x 11.00 but it is not. If I manually change the imported images size to that It is way too big.
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Anyone
I hope I'm clear.
RD

John Mensinger wrote:
Ctrl-Click the layer thumbnail in the Layers panel to load the layer's opaque pixels as a selection. Look at the Info panel to see the selection size.
That will show where the layer has pixels not necessary the size and the info will show the canvas size. Free Transform is more likely to show the layers bounds. Photoshop supports layer of any size. Layers in a document can be larger then smaller the and equal to canvas size a layer can be partially over the canvas and even completely off canvas.
The web does not support layered image file formats and Photoshop ships with a plug-in "Fit Image" that can fit any image into an area for the web. It can downsize|upsize image to fit within an area and maintain the documents canvas aspect ratio. So you need not worry about layers all you need to to decide the area size you want to use on web pages and fit the your images to that area size.

Promoted Links Tile Background Image Size Issue

I am brand new to using sharepoint and I am having an issue with the images attached to the promoted link tiles. No matter what size I change the file too, I can not get the tile to show the whole pictures.
I have tried changing the image size for multiple different pictures in both photoshop and illustrator to 128px and 150px, with no luck!
Does anyone have any advice on how to make the pictures fit in the tiles or how to start with an illustrator or indesign image and format it correctly to display in the tile view?
As many details as possible will help since I just started using this program!
Thank you!

Hi,
According to your description, my understanding is the promoted link tile can’t show the whole image.
By default, When image with a blank space around, it would be transformed properly in promote link tile, I suggest you modify the image to make it with blank space around.
For about modifying image, I suggest you post a question to the corresponding forum such as Photoshop forum:
https://forums.adobe.com/community/photoshop
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New Image Size and Resolution in CC

Hi there.
Ok, maybe i'm missing something, but how do i reduce the ppi's of a given image in the Photoshop CC? Changing it in the image size, in the Resolution field, it acomplish nothing. It logs an entry in the History panel, but nothing changes in the picture. Did Adobe changed how this works, or it's just a bug?
Thank you.

Try setting to real-world measurement, like inches or cm.
Hi Charles, i think that change in cm/mm/in it's the only way to change the image ppi (in my case save/resample it to 108ppi). Can you confirm that this is correct?
Anyway when i go to image size (new panel of CC) the w/h are:
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2) always set in inches with resample NON-flagged (also if my ruler unit is in Pixel).
(and actually that is not new behavior. CS6 behaved same way when width and height were set to percent)
In CS6 and CC i never seen w/h in percent - where is my error?
Many thanks!

Save Image size setting in Save for Web

I'm using Save for Web (CS3) and scaling the file to different sizes with "scale image". I'm wanting to use the same scale settings for many images but when I save the pre-set the image size settings don't get saved. I'm wanting to use it as part of an action but the setting wont stick. Any suggestions? Alternative work flows?

That's never been saved as part of the S4W presets. Bloody annoying.

How do I set the image size in PS touch to print to my Epson printer w ithout losing any of the picture. PS Touch appears to be showing pixels and not inches, how can I covert it toshow inches?

I am using PS Touch from my tablet . I am importinga photo from an SD card . When all editing is completed I then send it wireless from the tablet via Epson I print to the printer. It all works great except that part of the photo at each end is cut off and does not print. I am printing on 8.5 x11 paper.
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Since downloading the 2013 Keynote upgrade, the slide image size on handouts with 3 slides per page option is very small. Is there a way to make the slide size larger while still keeping 3 slides per page lines?

With the new Keynote upgrade (version 6.1), the slide image size on handouts is very small, which makes it difficult to read slide content when compiling lecture notes for students. Is there a way to make the slide size larger while still keeping to a format of 3 slides per page with lines?

A number of posts have reported the same issue, two workarounds:
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How can you find out an individual image size from multiple images on a canvas

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Image size or transform

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