I am confused with optimum Pixel sizes?

For instance
When placing photos in the web for sale and to avoid having these "stolen" what is the best pixel size AND
for showing images of varying size (some heavily cropped) on a large classroom screen without looking like a pratt what would be the optimal pixel size
Next I'll have to find out where in Photoshop ELements I can do this as Ive only just downloaded the trial
Help

Generally I use something like 900 x 600 for the web. If you use Expert Mode:
File >> Save For Web
The image will be optimized. Select jpeg and medium quality. That should keep the file size under 100k, which is ideal for web site viewing with fast downloads. You can compare the potential file size by looking at the optimized preview window alongside the original size.
If anyone downloads such an image only a very small quality print could be made e.g. 3 inches by 2 inches at 300 ppi.
For projection or viewing on a large wide screen something like 2000 x 1333 at 72ppi usually works well.
It really depends on the original aspect ratio. Mine are all 3:2, hence the dimensions above, but cameras differ so use the measurements for the long edge as a guide.

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When I open icloud, desktop is opened with a pixel size of 640 x 480

When I open icloud, desktop is opened with a pixel size of 640 x 480
The normal pixel size is 1680 x 1050 on my desk.
This means that I can not turn the button so all the settings are installed.
How to solve this problem?
I use Internet Explore as your browser.
Operating system is windoes 7 ultimate.

Move the cursor to the very top of the screen, maybe push up a bit. The main menubar should then appear. All the way to the right should be a bright blue icon - click it, and the Safari window should revert to 'normal' size.
Pressing Command-Control-F should accomplish the same thing.
Once it is back to normal size, click and hold on the top portion of the Safari window and drag to left or right to place it where you want it to be. Once you leave it there, the next time you open Safari it should open its window in normal size at that place.
If you need to re-size the window a bit, you can click-and-hold on the bottom-right corner of the window and drag to resize it.

Optimum Pixel size for Video????

I used to make my video files 720x486 (0.9px) D1 and they would come out nice... now with iDVD 6 It seems to be scrunching my video (adding small black bars on top and bottom) and causing distortion. What is the optimum video pixel size for the standard and widescreen settings of iDVD??
cheers@!
c

Quoting F Shippey:
If you live in 'NTSC land', Apple suggests that you use 720x540 pixel images for standard video and 854x480 pixel images for widescreen.
See: Preparing images for iDVD slideshows at:
http://docs.info.apple.com/article.html?path=iDVD/7.0/en/6675.html
Message was edited by: SDMacuser

Export With Same Pixel Size Not Possible?

I'm exporting two photos from Aperture to another program for the purpose of creating one panoramic picture.
However, the other program (PFactory) only allows the stitching of photos with the exact same pixels and no matter how I try to export both photos with same pixels using Fit Within Pixels with Aperture they never come out the other end the eact same size.
One photo has 5195 x 3454 and the other has 5195 x 3459.
Anyone know why?
Thanks.

How are you trying to do this now? When you export using a "fit within" it's going to scale the image proportionately. It's not going to crop. The problem you're having is that the ratio of height to width of these two images doesn't match so "scaling" wont work... if it trims the height by a few pixels it's going to trim the width by a few pixels to maintain the aspect ratio.
You'll have to crop the larger image by 5 pixels. But this is what I had assumed you (or someone) had already done to the 2nd image. I've never seen a digital camera that puts out images in random sizes (were the images actually taken with the same camera on the same settings??)
Select the larger image, pick the 'adjustments' tab, click the 'crop' icon along the bottom left corner of the image frame. In the crop-window that opens, set the "Aspect Ratio" to "Custom" and then type in the dimensions that you want. It'll put a box on the screen to show the area it intends to keep but you can use your mouse to slide that box around. When you leave the crop mode (e.g. pick the "selection tool" icon (left-most icon in the lower left corner of the image -- or really any other mode) the image will be updated to reflect the crop (keep in mind Aperture doesn't really crop the master... it's just displaying it that way.)
Now when you export to TIFF or JPEG, etc. as "original size" the image sizes will match.

Confused with optimum size and publishing

It seems like it should be a fairly straightforward process to select a project size at the start of a Captivate project and then publish at the end and watching Adobe videos saying how easy it all is now to publish across platforms with HTML5 etc you would think so.
When I started my current project I selected 1024 x 768 as I have a large main screen, plus two smaller screens here at work. When I went to publish, I selected both swf and HTML5 and selected scalable HTML content. I then saved the .htm file to my web folder here at work and then viewed the new link. My default web browser is Firefox and I was horrified to see the movie appear as a tiny postage stamp size on the screen. Also when I tried it on my smartphone, clicking on the buttons caused the slides to jump too far ahead.
I then decided to re-save my project and re-size it to iPad landscape. I then published two different versions, the original 1024 x 768 version as swf with scalable HTML content and a second re-sized iPad version as HTML5 with no scalable HTML. Both versions worked fine on either pc (scaling nicely for the different sized screens I have) and also worked fine on my smartphone. However, in Firefox I still got the postage stamp sized movie.
I am now trying a new re-sized project as 995 x 627 and my intention is not to use scalable HTML content and publish it to both swf and HTML5 and see how that looks on everything.
My question is if you were tasked to create a Captivate project that needs to look great on pcs, laptops, tablets and smartphones without having to use scroll bars to view all the content on each page, firstly what size would you choose for your project and which settings would you use when publishing (i.e. would you select scalable HTML)?

There isn’t a one-size-fits-all (no pun intended) size for Captivate trainings that will look perfect on multiple devices. If you need to have the training viewable on multiple devices then you should use the scalable options when publishing. Without scaling you’ll end up with scrollbars on devices that use varying resolutions and can’t fit all the content onscreen. The only way not making content scalable would be possible is if Captivate had a device aware function that allows the content to fit the screen, like you can code in Dreamweaver, but that would seriously increase your development time.
The Firefox problem has to do with a bit of code that Captivate uses in the html templates. Open the html file that’s generated with your published files and remove the text "http://www.w3.org/TR/html4/loose.dtd" from the first line. Then when the file is opened in Firefox it won’t display the content really tiny. You can also remove this from your template files so it’s never included when you publish.

Optimum pixel size for album artwork?

When I search for artwork I see very many different sizes available such as, 50x50, 400x400, etc. What is the optimum size to use in iTunes when the artwork will be displayed on an iPod, an iPhone, and an iPad? If I understand correctly, iTunes will resize the artwork to display properly on the devices, but I was wondering if I should look for a "standard" size to add to iTunes that will still look correct whether it is on an iPod or an iPad.

Of course it also depends upon how much space you have on your drive, and how much space on a player if you add them to mp3s or whatever. Perhaps not a huge difference but if you start adding 500k image files to 20,000 tracks then it does add up to a GB or two.

Cropping while maintaining pixel size

Just got LR5 - wish it was as intuitive as PSE. A few initial questions:
1) When I crop in LR, I see no way to maintain the original pixel size as is easily done in PSE. Is it not possible?
2) When I select "Help" or press F1 in LR, I get LR Help, however the Search feature doesn't list LR as one of the Product selections in the dropdown box. I did register LR.
3) When you make an adjustment in LR, isn't there a way to Undo it? I thought you might be able to delete it from the history.
4) What is the best free source for learning LR, preferably video. I did see the ones by J. Kost on the Adobe TV website, but they weren't very detailed/complete.
Thanks.

Thanks dj. A couple of follow-ups on your responses then I'll mark it as correct:
1) So when I crop in PSE with the pixel size set at the size of the original, that is not really buying anything? I don't think it does a resample, just decreases the Document Size by a corresponding amount. There is no advantage as far as photo quality or anything else to keeping the pixel dimensions at the larger size (of the original)?
3) When you "undo" by double-clicking on the name of the slider, is this a true undo (i.e. the history item is deleted) or does it just create another history item that offsets the original adjustment?
And a couple of other items on recommended ways to do things:
- Would you recommend when making adjustments to show both the before and after in the panel to see how it is changed?
- Do you personally use shortcuts all the time? From watching videos from J. Kost and some other guy whose name I don't recall, they both seem obsessed, to the point that it is annoying, with using shortcut keys. There are so many of them that I don't see how it is a shortcut if you have to look them up.
Thanks dj.

Confusion with paper sizes in Elements 8

I have been using Photoshop Elements for years with my MAC , ever since it first came out and have never had this encounter with the paper size menu. When printing a photo I #1 designate which printer I am using ( Canon Pro9000) and then #2 try to select a paper size but the drop down menu has a list of sizes I can't decifer. US letter is there as well as legal but what is DMSIZE_MINUS_ 8x10, DMSIZE_6GIRI, DMSIZE_L, JB5, etc. Has anyone else come up with this problem? I need a translation. My daughter has the same problem with her copy of Elements. Is this a bug in the program?
Thanks,
Lorinda

When you launch print dialog of elements, the values in dropdowns are populated based on the printer selected/installed on your machine. However, in some cases it may be possible that the pritinter driver does not return the correct names of paper choices and can show junk values.
This however has not been found in latest MAC OS but may be seen in Tiger or old versions of MAC with some of the old printer of some of the manufacturers.
However, when you choose these paper sizes, the sizes are also shown in preview section.
Let me know if you have any comments.
-Garry

Determining Video Pixel Size from Still Pixel Sizes

Hello
I posted a few questions here in regard to establshing good Pixel Sizes in stills for use in FCE.
Tom, and Studio X were very helpful, and I picked up a few pointers.
One thing I still didn't grasp completley was how to determine (perhaps from a simple formula), what the Video Pixel Size would be from a photo's pixel size.
As Tom pointed out:
"A 2400x3000 pixel image may be perfectly adequate and not produce as many imaging problems when scaled in a video application"
And as I discovered in regard to print size:
"An 8" x 10" document that is scanned at 300 dpi has the pixel dimensions of 2,400 pixels (8" x 300 dpi) by 3,000 pixels (10" x 300 dpi).
So then all this being said, is there a way to easily determine what the Video Pixel Size will be from the given Pixel dimensions of a still image?
(Like from a re-sized Tiff in Photoshop)
My version of Photoshop doesn't seem to have that conversion option for determining NTSC Video image quality.
Thanx
Mike

And if I need to zoom in really tight to a small area in a particular still, I should allow myself an image size a bit larger than 1280x720. Correct?< </div>
If only it was that easy. The video screen is roughly 800 by 500 pixels. That's all there are. If you bring in a 1600x1000 JPEG (might want to try TIFF instead) and you wish to see the whole image, it will be scaled down to 25% to fit onto the small screen and all of your pixels will be thrown away or mashed together. It's terribly inefficient and the image gets mushily softened.
If you need to zoom in to a particular spot on the image, imagine that spot as filling the 800x500 pixel screen. You can use a simple ruler and measure the area you wish to be full screen (without any scaling being applied by FCP because that will destroy your image). Now measure the largest part of the image that you want to be on screen at any one time when zoomed all the way out. The ratio of those two numbers is what you will need to scan. Example (highly simplified don't try to argue about the precision) if your big image is 10x8 inches and your desired tight shot is 4x3 inches, you must provide a TIFF that is 2.5 or 2.75 times the size of the tightest area. That tight area is going to be 800x500 pixels. You will scan the 10x8 image to obtain a TIFF that is almost 2.5 times 800 pixels wide or 2000 pixels, by 2.5 times 500 pixels high or 1250 pixels. Do not bother to convert that into DPI. You are targeting an image size measured in pixels. It's got nothing to do with the size of the original image or the DPI. Repeating: Absolutely nothing.
This will give you an image into which you can zoom and suffer no image degradation. It will also give you a tremendous processing hit. FCP just doesn't like to do that kind of scaling.
Umm, doesn't look like I helped much. This issue is highly misunderstood and it's quite confusing if you come from a Photoshop background. giving up concepts like DPI is almost impossible. The only way to get it is to work through the many options Photoshop and video people offer up and try to figure out why some of them don't work for you.
bogiesan

Specific pixel size & dpi

Is it possible to set specific a combination of size (in pxls) and dpi? (in Illustrator CS5)
I need to create a .png document which is 16x16 px and 96dpi. The ability to chose the dpi size when setting up a new doc is very limited.
The only thing I've managed to do is create a 19x19 px 72dpi image, export it "for web" and then take it into photoshop and change the dpi to 96.
Is there a better, easier way? Also, we're considering upgrading to CS6 - are these features better in CS6?

Bidds, you are confusing DPI (Dots Per Inch) with PPI (Pixels Per Inch).
DPI is a technical specification of the output or input of hardware devices like a printer when you print, monitor when you display your digital image, scanner when you scan to make digital images, and etc. For printers DPI specifies the size of the ink drops when printing. For monitors, DPI specifies the monitor's resolution or in other words the size of the monitor's pixels. The term DPI for monitors came from the use of the CRT displays (those heavy monitors and TVs in the past with big tubes) which are no longer in production. These displays used guns to shoot light at the back of the screen with variable size dots and the term DPI perfectly described the monitor resolution used. Today there is only LCD displays on the market and thy use fixed cells which define the monitor resolution. Because the cells are fixed, for describing the resolution of LCD monitors, people mostly use the term Pixels Per Inch when they want to describe the size of monitors' pixels (cells). And this can cause some confusion that you are experiencing.
PPI is an attribute of a digital raster image. It specifies the output resolution of a raster image or in other words how large the pixels in the digital file will be output.
In Photoshop you are setting PPI not DPI.
Illustrator is a vector program. Vector graphics are resolution independent (have no pixels) and don't have PPI attributes. The PPI attributes are valid only when creating a raster image for outputting to devices like printers. Printers can print the pixels of your digital image with different size, and thus the image with the same number of pixels can be printed with different sizes. Monitors however don't use PPI settings of digital files to display images, instead they use the zoom level specified by the user using software, and by default the software programs (your browser for example) use 100% zoom which fits one image pixel to one monitor pixel. Because different monitors have monitor pixels (cells) with different sizes that cannot be changed on LCD screens, a digital image with the same number of pixels will be displayed at different size at the default 100% zoom on different monitors. Also have in mind that certain elements like software interfaces cannot be zoomed (changed) by the user.
So, the DPI mentioned in the link you provided does not mean PPI and it doesn't suggest in anyway that you should set PPI in Photoshop or any other program when creating images for the web. You got that wrong. It is only telling you that monitors with higher resolution (DPI) will display your image smaller so, you may want to make the image larger (with more pixels) and vice versa. The PPI settings in a raster image are simply ignored for display on monitors and thus on the web. That's why you don't have an option for PPI in Save for Web and devices. Whether an image with a certain number of pixels is 72, 96, 300, 1 million or 1 PPI (pixels per inch) this will not make any difference when displayed on the web.

Having troubles with aspect and size when exporting to CD

I would like to export my pics to a CD so i can send them out to be printed in a lab. I'm confused with the aspect ratio when I crop them i know I have to lock the aspect but should I keep it on Original? Also i'm wondering when it comes to export them what size should I be placing if I want to print all sizes. like some 8x10 and some 4x6 and so on. I'm working with Lightroom 3. Thanks in advance : )

I'm confused with the aspect ratio when I crop them i know I have to lock the aspect but should I keep it on Original? Also i'm wondering when it comes to export them what size should I be placing if I want to print all sizes.
The crop aspect lock only comes into play while you are actively resizing the crop boundary. LR always works in a freehand manner, except that if the ratio is locked, adjusting the crop frame is allowed to alter its size and location and angle - but not its shape. If the ratio is not locked, you will be changing the crop shape freely if/when you drag the corner or edge handles around. The rest of the time, the lock makes no difference; and it is just as possible BTW to lock a random freehand aspect ratio, as it is to lock one of the standard preset ones.
If you are uploading an exported copy for printing, you could simply upload a JPG made at the original resolution (as cropped for composition and angle) - that is, unchecking the whole resizing section of the Export dialog - and give the printer instructions as to how large the various prints are to be. Or I suppose, you could resize to the largest of the sizes that you require, but you will then need to negotiate a pixels-per-inch "resolution" setting that will be appropriate - since, when resizing to a page size, this figure governs the pixel content of the file produced.
I would suggest that in the case of an export without resizing, where a generous quantity of pixels are included for the sorts of page sizes mentioned, you will likely not see any discernible printed benefit from setting the highest JPG quality setting for your export, but will be fine with around quality 6 to 8 - which brings the file sizes down significantly. Most often, printing services will presume that you have selected sRGB colourspace for your export, unless something different has been pre-agreed.

Cropping images to exact pixel sizes

I'm a Photoshop user but being a recent Mac convert I'm having a go with the Aperture 2 trial.
I'm a bit confused about how to crop an image to an exact pixel size. I've watched the video tutorial several times over but I still can't achieve what I want. So ...
* My original image is 2816 x 2112
* I select a 4 x 3 aspect ratio using the Crop HUD
* I pull the rectangular box out to take in the section of the image I want to crop out of the original
* I want a finished image of 500 x 400 pixels
* I go to the Crop field in the Adjustments tab and change Width to 500 and the Height to 400
* The crop area on the image ends up as a small box in the bottom left hand corner and when I hit Return, all I end up with is that area of the image inside the box when what I want is the originally selected crop area but at 500 x 400 pixels
* If I stretch the rectangular box out to cover the original area, the pixel dimensions go up again beyond 500 x 400
Which part of the process am I missing?
Thanks for anyone's advice,
Mark

What you type in that box is just the ratio not the actual pixel number. And the box does not like to many digits in there. A ratio of 4 x 5 would work perfectly fine in your case, but more complicated ratios like 21 x 50 don't work.
To get 500 x 400 px you must then export your image with settings that restrict your image, eg, to fit into a 500 x 500 px box.
The idea behind this two-step approach is that you might think of 500 x 400 px output right now, but by doing the actual pixel generation at a later point, you can always easily export later at 1000 x 800 px if you need a higher resolution version with the same aspect ratio.

Why are .jpg files with text pixelated when projecting through Keynote?

I have a police report that I'm trying to project through Keynote as part of a larger presentation. It projects beautifully if I just mirror the screen, but for purposes of the presentation I have to use Keynote and can't switch back and forth. The text is so pixelated it's unusable and I've tried scanning at high resolution, but no luck. I'm confused about it projecting fine when not going through Keynote, so I feel like there's maybe a setting in the software I'm missing.
Any ideas?

The text is so pixelated it's unusable
The resolution of the projector will be much lower than the display connected to the Mac.
Therefore, with the projector connected and powered on, open System Preferences > Displays, in the settings window for the projector, select scaled option and set to the highest pixel size listed.
I've tried scanning at high resolution, but no luck.
You have scanned a paper document?
Then scan to at least 1200 x 800 pixels, do not use a dpi or ppi setting in the scan software, use pixels, then save as a TIFF file.
I'm confused about it projecting fine when not going through Keynote, so I feel like there's maybe a setting in the software I'm missing.
Set the slide size in: Inspector > Document > Document > Slide Size; use custom from the drop down menu and enter 1280 x 800
The inspector is the side panel on the right hand side

How resize photo to an exact pixel by pixel size?

I need to save a photo that is 3872 pixels by 2592 pixels to an new, exact dimension of 475 pixels by 265 pixels. iphoto only seems to allow me to specify either height or width as a new dimension.
Any suggestions?

OK Larry, I figured it all out. We are both correct. The issue is that there are two ways to custom crop in iPhoto and switching between them in non-intuitive. One way gives you an actual hard dimension crop (what I was talking about) and the other a ratio box where the longest size expands to the full dimension of the photo (what you were talking about).
Pick a photo and go into edit. Hit the crop button. Normally you get a slight downsized window with the constraint button UNchecked. If yours comes up checked, UNcheck it now (more on that in a minute). Now use the pull down to pick Custom the constraint button then checks and you get default values of zero in the two boxes. At this point if you then pick dimensions, such as 475 x 265, you are picking a RATIO box that stretches all the way across the longest size of the photo and the other dimension determined by the ratio. This is what you were talking about.
However, pick crop and this time start with the constraint button CHECKED. Now use the pull down and pick Custom. Instead of giving you the boxes with zeros in them, this time they start with the full size of the photo prefilled in. Now change the dimensions to 475 x 265 and this time it is an actual hard crop to 475 x 265 pixels rather than a ratio. This is what I saw when I did it and why I didn't understand your comment.
The confusing thing is that depending on how you last left the constraint check box in crop, it will come up that way next time you use crop even on a different photo. So when you go to custom again, it might act differently depending if you entered that setting with the constraint box checked or unchecked.
So anyway, add that to your list of answers for posters. The Crop function in the edit mode has two options, one is a hard crop to set pixels and the other is a ratio crop. How you pick which one is by the checkbox for Constraint before you pick the Custom crop pull down.
I am sure there we were both saying to ourselves about each other, what the heck is wrong with that guy that he doesn't get a simple concept.
Cheers,
Patrick

How do I change the pixel size of my photos?

Hello,
Please give me step by step instructions on how to change the pixel size of my photos from the time I log in.
Thank you.

There are basically two ways.
Image>Image Size... This will adjust the quality of the image, allowing you to adjust the pixel dimensions and keep the full image.
In the tool bar on left side of screen 5th icon down looks like a sliding picture frame. That is the crop tool, that will adjust the pixel size of a document by removing a portion of the image, allowing you to get rid of portions of the image you do not want.
There are some other ways to accomplish the above, but these are the basics that everyone needs to know. I recommend playing with these tools on a copy of an image, that way you won't be afraid of destroying an image.

I am confused with optimum Pixel sizes?

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