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Get more secrets to Editing Digital Photography

An image editor is a computer program that enables you to adjust a photo to improve its appearance. With image editing software, you can darken or lighten a photo, rotate it, adjust its contrast, crop out extraneous detail, remove red-eye and more. Most graphics programs have the ability to import and export one or more graphics file formats. Several graphics programs support animation, or digital video. Vector graphics animation can be described as a series of mathematical transformations that are applied in sequence to one or more shapes in a scene. Raster graphics animation works in a similar fashion to film-based animation, where a series of still images produces the illusion of continuous movement.

The display resolution of a digital television or computer display typically refers to the number of distinct pixels in each dimension that can be displayed. Some commentators also use this term to indicate a range of input formats that the display's input electronics will accept and often include formats greater than the screen's native grid size even though they have to be down-scaled to match the screen's parameters. An example of pixel shape affecting "resolution" or perceived sharpness is displaying more information in a smaller area using a higher resolution, which makes the image much clearer. However, newer LCD displays and such are fixed at a certain resolution; making the resolution lower on these kinds of screens will greatly decrease sharpness, as an interpolation process is used to "fix" the non-native resolution input into the displays native resolution output.

There are many different photo-editing programs out there. Many people believe that the level of difficulty of the program indicates its quality. However, many programs are quite simple to use and are of high quality. Several programs will make adjustments for you based on one entered specification, whereas others require you to perform several steps yourself to get the desired effect. Depending on what you're most comfortable with, whether it's pressing a button and having the rest done for you, or doing it all yourself, not every program will be for you. Choose according to your level of experience and your needs in the program.

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.

Sharpen filters bring out detail in images by increasing the contrast of pixels next to one another. More advanced image editing programs offer several options such as Sharpen, Sharpen More, Sharpen Edges and Unsharp Mask (USM). Unsharp Mask gives you a lot of control over how an image is sharpened. Sometimes a photo will benefit from selective sharpening. You select an area with a programs selection tool and only sharpen the area. The important thing is not sharpen an image too much. The sharpening tool that is most useful for photographs is the Unsharp Mask, now available in most raster programs. The Unsharp Mask searches through your image looking for where colors change, and sharpens those areas. The Unsharp Mask is superior to any other sharpening because it makes decisions based on adjacent pixels, not random color changes, so it usually can find and sharpen just the true edges of color areas.

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.

Cropping refers to the removal of the outer parts of an image to improve framing, accentuate subject matter or change aspect ratio. In the printing, graphic design and photography industries, cropping refers to removing unwanted areas from a photographic or illustrated image. One of the most basic photo manipulation processes, it is performed in order to remove an unwanted subject or irrelevant detail from a photo, change its aspect ratio, or to improve the overall composition. It is considered one of the few editing actions permissable in modern photojournalism along with tonal balance, colour correction and sharpening.
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