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Making an image that was incorrectly saved as JPEG fit for saving as PNG. Suppose you have a map for an island that was inadvertently saved as JPEG. Looks OK, if a bit fuzzy. 1. In your bitmap graphics editor, set your fuzzy selection ("magic wand") tool so that it only will select pixels of exactly the same color. (Here: Threshold = 0) 2.
Removal of non-free images. Shortcuts. WP:RFUI. WP:FUIR. The ninth item of Wikipedia’s policy for non-free content states that non-free images should only be used in the article namespace (not disambiguation pages), and goes further into the underlying reasons for the policy. This issue is important because copyright complaints are a very ...
Transparency (graphic) Transparency in computer graphics is possible in a number of file formats. The term "transparency" is used in various ways by different people, but at its simplest there is "full transparency" i.e. something that is completely invisible. Only part of a graphic should be fully transparent, or there would be nothing to see.
Image file format. An image file format is a file format for a digital image. There are many formats that can be used, such as JPEG, PNG, and GIF. Most formats up until 2022 were for storing 2D images, not 3D ones. The data stored in an image file format may be compressed or uncompressed. If the data is compressed, it may be done so using lossy ...
PNG images are less widely supported by older browsers. In particular, IE6 has limited support for PNG. JPEG Composite image comparing lossy compression in JPEG with lossless compression in PNG: the JPEG artifacts can be easily visible in the background of this kind of image data, where the PNG image has solid color.
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The original photo is cropped out of a very large JPEG and is saved as a PNG file. Then, this PNG version is converted to each of the aforementioned picture file formats. Each photo is 400x480 in size. The basic JPEG is the worst at compression but JPEG XR and JPEG 2000 are very similar. The JPEG 2000 is a bit on the brighter side and tends to ...
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