![]() ![]() With the popularity of digital photography, most image editing programs offer image effects specifically designed for use on digital photographs. Some graphics programs will offer a few predefined effects, others designed with effects in mind may offer hundreds of image effects to choose from. Also, you may find your program offers an effects browser, which will open your image as a thumbnail in a browser window that allows you to quickly preview how each effect will look before performing the action. You can also choose “undo” if you don’t like the change and select another one to try. With most programs you can simply select the name of the image effect and the program will produce the image with the effect, so you can save the image. Effects let you do things like change the edges of your image, adjust the noise level, add textures, change the gradient and fine-tune many other aspects of your image. There are some standard image effects that you can expect to find in a good program. Image effects are used as a way to change your image to add an artistic look, make textured patterns, or produce an enhanced real-world view. Many image editing programs come with predefined algorithms that enable you to add special effects to your images. The more colors your image contains, the larger the file size. Computer-generated graphics and clip art are best suited to a lower color depth, while photos and realistic images are best suited to 24 and 32-bit color depth. Common values for color depth include the following: 256 colors 16-bit, which is up to 65,000 colors and 24-bit, which is 16,777,216 colors. The more colors used in an image, the more realistic it will look. In computer graphics, color depth is how you describe the range of colors that can be used in an image. Because of the difference between resize and resample, it is generally best to use resize on computer-generated graphics and resample on photo images containing more than 256 colors. If you choose resample it will smooth out edges and fill in missing pixels with the appropriate color. The resize algorithm duplicates or deletes pixels. When you resize or resample an image, you’re basically specifying a new pixel dimension (length and width) for that image. The Difference Between Image Resize and Resample ![]() You will have a couple choices: resize or resample. For example, if you are using a high-resolution digital photograph, you may want to make the image smaller for publishing on your blog or website. ![]() Depending on what you plan to use your image for, you may want to change the image size. Some graphics programs will allow you to view and work with your image in the equivalent inches or centimeters. Image dimensions are the length and width of your image, measured in pixels. In this Webopedia Quick Reference article, we’ll explain the common terms to help you learn the basics of editing digital images. Adding to the confusion for novices, most programs tend to use different names for the basic functions used to edit images. There are countless image editing and manipulation software packages available, each with its own options and features. ![]() Image (or graphics) editing jargon can be confusing, especially for those who are just learning how to edit digital photographs. ![]()
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