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Image editing refers to modifying or improving digital or traditional photographic images using different techniques, tools or software. Images produced by scanners, digital cameras or other image-capturing devices may be good, but not perfect. Image editing is done to create the best possible look for the images and also to improve the overall quality of the image according to different parameters.
Image editing is considered a creative, artistic act. Image editing is done for removing unwanted elements such as dust specks and scratches, adjusting the geometry of the image like rotating and cropping, correcting for lens aberrations, sharpening or softening the image, making color changes or adding special effects to the image. Often the tasks involved in image editing are repetitive and need intense processing. Manual image editing done on traditional analog photographs requires a high level of expertise and attention to detail. Image editing software applications are also available for editing images. Unlike other conventional methods, these tools provide advanced image editing operations like data compression, photo organization and selection of image properties.
In digital image processing, image editing is basically categorized into pixel editing and parametric image editing. Pixel editing focuses on altering the image by working at the pixel level. Parametric image editing, on other hand, focuses on changing the appearance of the image without altering the original image.
There are benefits associated with image editing. It enhances the original images in accordance to the user's requirements. They can bring more color and life to the image. It helps in bringing the best possible image in the interests of the viewers.
There are a few drawbacks for image editing. Advanced software for image editing is expensive and often requires time for an individual to understand and become familiarized with its features. Furthermore, some consider edited images to be false or misleading, causing a negative reputation for some people toward image editing.