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Check color Make sure the colours look natural. If the photo looks too "cold" or too "warm", it can often be easily corrected using a color balance adjustment. Check brightness If the image seems dark or the colors are dull, correct the brightness and contrast using a "levels" or "curves" dialogue.
Image quality can refer to the level of accuracy with which different imaging systems capture, process, store, compress, transmit and display the signals that form an image. Another definition refers to image quality as "the weighted combination of all of the visually significant attributes of an image". [1]: 598 The difference between the two ...
Image scaling. In computer graphics and digital imaging, image scaling refers to the resizing of a digital image. In video technology, the magnification of digital material is known as upscaling or resolution enhancement. When scaling a vector graphic image, the graphic primitives that make up the image can be scaled using geometric ...
If it is a non-free image file, then we are required to try to use the smallest resolution that captures the image in detail to be of use to th readers, per WP:NFCC#3a. A screengrab from a 1080p television show does not need to be uploaded at that resolution but can be halved in both length and width (eg reduced to 25%) without likely harming ...
There are 4 basic choices for image file formats: SVG for simple diagrams (especially those that need to be scaled). JPEG for photographic images. GIF for animated images. PNG for everything else. While some formats offer multiple compression systems, in general the format and the compression system are tied together.
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. The pixels can be changed as a group, or individually, by the sophisticated algorithms ...
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