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Home | Communications | Broadband Internet Possibly one of the most confusing aspects of dealing with digital imagery is resolution-specifically, what it really is and how changing it affects an image. Simply put, image resolution is the number of pixels displayed per unit of printed length in an image. It's a measurement used for printing and it's usually stated in pixels per inch (ppi-used when referencing screen images) or dots per inch (dpi-used in printing because printers print dots). The way resolution affects an image is thus: For a given number of pixels in the width or height of an image, the higher the resolution, the closer the printer packs those pixels together in order to make a beautifully smooth and sharp print. The closer the pixels are packed together, the smaller the image will be physically when printed, and vice versa. Because our monitors can only display a certain amount of information that our eyeballs/brains can process, resolution matters only to printing devices. That's right, it doesn't mean a hill of beans until that image is headed for a printer because only a printer can do anything with the resolution measurement. While it might be neater to store digital images, you aren't done with organizing and storing images. There are various options for data storage, and no one answer is right for everyone. In fact, there may be more than one right answer for you. However you store your images, be sure to file them so they are easy to organize and find. Choose one system and stick to it. Create named folders on your hard drive or name compact discs, for instance, to store them. ALWAYS make copies of your images, leaving the originals intact, before you edit, alter or crop them. The hard drive is where most people store the bulk of their images. This is a good option, but isn't without problems. For instance, if you have all of your images on your hard drive and it crashes, you've lost all your precious images. A horrible thought, of course! Do use the hard drive, but also back up all images right as you transfer them to the hard drive by any secondary method. The compact disc is a wonderful way to store images; it can be rather efficient and it is relatively easy to set up. The downside is you need a CD-burner to use this method. If you do have one, simply keep a running backup of all your images. Be sure to pay special attention to organization so you don't wind up popping ten CDs in just to hunt down one photo. When you burn a new CD of images, write down the dates and descriptions of the photos on the CD. Or name the CDs and keep a notebook that lists what is on each CD. Better yet, make an index print of images on each CD and write the name on top of the print. With a photo-editing program, you can "fix" or change images acquired from a scanner, digital camera, or the Internet and print them, import them into another document, post them on a Web page and use them for desktop backgrounds. To make the choice that's right for you, check reviews in computer magazines and on the Internet to narrow your choices; look for a program that can directly import images from a scanner or digital camera; make sure the program can crop, resize, flip and rotate images; compare color adjustment capabilities of programs. You should be able to adjust contrast, brightness, sharpness, hues and color-saturation levels; change a color; and convert color to black-and-white or grayscale; and compare the ease of using the various programs available. Pictures are measured in size by how many pixels they contain. When you've taken a picture that is simply too large, you can resize the image by changing the number of pixels it contains. To make an image smaller you must reduce the pixels, and vice versa. Sometimes pictures look better smaller than the original size. Rarely do pictures look better larger, because resizing an image to make it bigger usually makes it blurry. To see what the best size for an image is, you will have to experiment until you find one that you believe looks best. Digital cameras, even relatively cheap ones, take incredibly large images. However, looks can be deceiving and, while the pictures may look big onscreen, they may look disappointing when you try to adjust them for printing, emailing, or long term storage. They're best left untouched, if possible, so that you have more flexibility later. All photo editing software will have a command for changing the pixel dimensions of an image. Look for a command called "Image Size," "Resize," or "Resample." When you use this command you will be presented with a dialog box for entering the exact pixels you wish to use. At times the subject of a picture is lost in the surrounding parts of a picture. If this happens, you can always crop your picture. This means cutting down the picture to a certain size. There are many ways to do this in terms of the size of cropping. In just about every photo editing program there is a cropping tool, and you can experiment with the size of the area that you take out of your photograph. If you don't like what you've done, all you have to do is click "undo." Article Source: http://www.articlewheel.com
Would like to find out more about editing digital photos? Don't trust anybody's tips until you read this free report
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