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In Photoshop Elements 6 for Mac Essential Training, Ted LoCascio teaches casual photographers how to organize, edit, and share their digital image libraries using this powerful software package from Adobe. He tours the included Adobe Bridge application, used for importing and organizing photographs, and explores every feature of Elements itself. He demonstrates how to navigate the Elements workspace, which is used to correct and improve images, combine them into projects, and produce slideshows, photo books, web galleries, and more. Ted also explains how to get the most out of each editing mode, and shares tips for correcting, retouching, and sharpening photographs. Example files accompany the course.
The resolution value of an image ultimately affects its output quality. Therefore you must take special care when resizing images for either print or on screen web display. With this movie, I would like to show you how to resize an image properly by changing the settings in the Image Size dialog box. I'm currently in the Bridge application and in the Content panel, I'm viewing the thumbnails for the images in the catalog images folder in our exercise files and I would like to locate a specific image to open up inside of the Elements' Editing workspace. I'm going to do that by going under the Edit menu, choosing Find. Brings up the Find dialog box and in here where it says Filename Contains for our criteria, I'm going to actually type in the word Tree and then click the Find button. And that brings up all the images that have the word Tree in their file name.
So the image that I would like to work with is this one right here, tree_03.jpg. I'm going to go ahead and click on that to select it, and notice over here on the right in the Metadata panel in Bridge, we can look down where it says Dimensions in Inches, 36 x 54, and then its Resolution value, which is 72 ppi. So right here in Bridge, we can identify the resolution of the image and its dimensions. So we know that's a pretty large image and saved at 72 ppi, Pixels Per Inch. So that's useful information. We already know what we're working with.
Let's go ahead and double-click on the image in order to open it up inside of the Elements' Editing workspace. So now that we have the image opened, what I would like to do is actually downsize this image because we don't want to print it at 36 x 54. But I'm not really sure how large of a print I can get and still maintain high resolution output. It says 72 ppi at 36 x 54. So if we do the math, that means if we actually print this much smaller like say, 4 x 6 or something like that, we should be fine. We've got plenty of room to work with here. However, we're not really sure how much unless we calculate it.
So let's do that using the Image Size dialog box. I'm going to go under the Image menu, and choose Resize and then Image Size. That brings up this dialog box here. All right, now this dialog box has broken up into sections. At the top here we can see the file size of the image. This image is 28.8 MB so it's rather large. That's the first thing we can indicate here. We have the pixel amounts up here, 2592 pixels in width, by 3888 pixels in height. Down at the bottom, and here we can see the document size and this has to do with printing.
So this is the area I really want you to focus on. We're also going to take a look up here as we make some changes. All right, we know that the resolution value is 72 ppi and generally that's what you would want your image to be saved at, if you're going to display it on the web or an email, any kind of on screen display, but not necessarily good for printing. But the image is huge, which means that if we were to lower this value, we should still be okay, as far as printing is concerned. Well, we don't know how far we can go or how large of a print we can get. So let's find out. To do that, we're going to uncheck the option here, where it says Resample image, click in that check box to turn that off. And then what I would like you to do is, hover over here where it says 72 resolution and let's bring that up to high resolution value. Standard high resolution is 300 and now we can see that these numbers have changed. It's done the math for us. So that means we can get an 8.64 x 12.96 print of this image and maintain high resolution output.
Okay. That is large as we can print this file and get a good print of it. So that's useful information. It's important to understand this concept. I'm going to go ahead and turn on the Resample Image check box again. Now that I know what we're working with, notice that these numbers didn't change, but if we were to change the numbers now in here with this turned on, Resample Image, and make it smaller, let's say we want to print this only at say 4 x 6. We will type in 4 and it automatically defaults to 6.
Now, take a look at what happened to our pixel dimensions. File size is now 6.18 MB as opposed to 28, and the pixels have been reduced, 1200 x 1800. So what we have done is reduced the number of pixels and the dimensions in our image. So we have properly resized this now to be a high resolution image when it's printed at 4 x 6 or smaller. All right, so now the last step is whenever you're reducing the file and size using the Image Size dialog box, you want to choose Bicubic Sharper here.
All right. Then we will click OK. We have now reduced the file size, we made it 4 x 6 at 300 ppi and we know that we can get a high quality print at 4 x 6 of this image. The last thing I would do is maybe do a Save As of this image. File > Save As. So that we're not saving over the original and maybe save as tree_03 and then do something like 4x6_highres. Something like that. Save it in here in your catalog images, choose for if you're staying at JPEG, I will choose the highest quality possible here and then click OK.
All right, and now we can go ahead and print this image. Either send it to a printing service or print it out on our inkjet printer, we're all set to go. That's a great way to work when you're resizing images for a specific print size and ensuring that you're going to maintain high resolution output. Now if we wanted to save this for the web, we would have to do this again. Let's go ahead and zoom in on the image a little bit more. We don't have to be zoomed out like that; it does it automatically when you reduce it in the Image Size dialog box. Let's bring that dialog box up again. This time Command+Option+I to bring up that dialog box. It's a great keyboard shortcut to memorize. All right, so here we are again. If we wanted to bring this down for web display, what I would do is just hover over in here and type in 72. And all we're doing is reducing the amount of pixels, but maintaining the dimensions. Notice what happened to the file size, and this is what's really important. It's now 364.5 K as opposed to 6.18 MB.
Now you want your file size to be really small when you're saving for the web because that ultimately is going to determine how fast your image is going to download into a browser. The smaller, the better. We have got the standard value of 72 in here, maintaining the dimensions but reducing the amount of pixels. All right, click OK, and now do another Save As. File > Save As, and this time we will say lowres and save it in here. Click OK.
All right, so now we have created a 4 x 6 print version of the image, and a 4 x 6 web version of the image and we have done so using the settings inside of the Image Size dialog box.
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