23-05-2012, 12:45 PM
IMAGE ENHANCEMENT
IMAGE ENHANCEMENT.ppt (Size: 464.5 KB / Downloads: 122)
INTODUCTION
Image enhancement is a technique that encompasses processes that aim to improve the quality of the picture.
Augmenting the quality of an image in order to display a fine, vivid and easy to comprehend.
More about Image Enhancement
Image editing encompasses the processes of altering images, whether they be digital photographs, traditional analog photographs, or illustrations.
Traditional analog image editing is known as photo retouching, using tools such as an airbrush to modify photographs, or editing illustrations with any traditional art medium.
Graphic software programs, which can be broadly grouped intovector graphics editors, raster graphics editors, and 3d modelers, are the primary tools with which a user may manipulate, enhance, and transform images.
BASICS OF IMAGE EDITING
Raster images are stored in a computer in the form of a grid of picture elements, or pixels.
These pixels contain the image's color and brightness information.
Image editors can change the pixels to enhance the image in many ways.
Automatic Image Enhancement
Camera or computer image editing programs often offer basic automatic image enhancement features that correct color hue and brightness imbalances as well as other image editing features, such as red eye removal, sharpness adjustments, zoom features and automatic cropping.
Image Size Alteration
Image editors can resize images in a process often called image scaling, making them larger, or smaller.
High image resolution cameras can produce large images which are often reduced in size for Internet use.