Ads
related to: reduce high resolution image size
Search results
Results from the WOW.Com Content Network
Compression of an image to reduce file size (in Kb) is usually "lossy" and is not advised for featured pictures. Image compression will reduce download times and save disk space, but it does so at the expense of fine detail and overall image quality. If in doubt, when saving JPEG files, always select the "maximum" quality setting.
An image size can be changed in several ways. Consider resizing a 160x160 pixel photo to the following 40x40 pixel thumbnail and then scaling the thumbnail to a 160x160 pixel image. Also consider doubling the size of the following image containing text.
In most cases anything which is not obviously too high a resolution is probably fine. Another approach to the rule of thumb is that if Wikipedia's software is forced to use a thumbnail of the image on the image description page, it is almost certainly an image of too high a resolution. One of the few possible exceptions would be if it were ...
A high-resolution non-free image is questionable fair use and may be deleted per Wikipedia's copyright policy. In most cases, this reduction will occur automatically: simply wait a while and a bot will resize the image file according to the guideline at WP:IMAGERES.
Image scaling can be interpreted as a form of image resampling or image reconstruction from the view of the Nyquist sampling theorem.According to the theorem, downsampling to a smaller image from a higher-resolution original can only be carried out after applying a suitable 2D anti-aliasing filter to prevent aliasing artifacts.
If it is considered impossible to find a technically superior image of a given subject, lower quality may sometimes be allowed. [1] Is of high resolution. It is of sufficiently high resolution to allow quality print reproduction. Still images should be a minimum of 1500 pixels in width and height (1500×1500px); larger sizes are generally ...
Ads
related to: reduce high resolution image size