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2. Image conversion - Wikipedia

   en.wikipedia.org/wiki/Image_conversion

   An example of this is Adobe Photoshop's native PSD-format (Prevention of Significant Deterioration), which cannot be opened in less sophisticated programs for image viewing or editing, such as Microsoft Paint. Most image editing software is capable of importing and exporting in a variety of formats though, and a number of dedicated image ...

3. Comparison of graphics file formats - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_graphics...

   PDF: Portable Document Format Adobe Systems.pdf, .epdf application/pdf PEF: PENTAX RAW PENTAX TIFF .pef PGF: Progressive Graphics File xeraina GmbH .pgf Photographic images, eventual replacement for JPEG. Yes PGM: Portable Graymap File Format ASCII.pgm image/x-portable-graymap Yes PGML: Precision Graphics Markup Language Adobe Systems, IBM,

4. Image compression - Wikipedia

   en.wikipedia.org/wiki/Image_compression

   Image compression is a type of data compression applied to digital images, to reduce their cost for storage or transmission. Algorithms may take advantage of visual perception and the statistical properties of image data to provide superior results compared with generic data compression methods which are used for other digital data.

5. JPEG compression - Wikipedia

   en.wikipedia.org/wiki/JPEG

   An example of a stereoscopic .JPS file. JPS is a stereoscopic JPEG image used for creating 3D effects from 2D images. It contains two static images, one for the left eye and one for the right eye; encoded as two side-by-side images in a single JPG file. JPEG Stereoscopic (JPS, extension .jps) is a JPEG-based format for stereoscopic images.

6. Image scaling - Wikipedia

   en.wikipedia.org/wiki/Image_scaling

   In the case of decreasing the pixel number (scaling down), this usually results in a visible quality loss. From the standpoint of digital signal processing, the scaling of raster graphics is a two-dimensional example of sample-rate conversion, the conversion of a discrete signal from a sampling rate (in this case, the local sampling rate) to ...

7. Image file format - Wikipedia

   en.wikipedia.org/wiki/Image_file_format

   Lossy compression algorithms preserve a representation of the original uncompressed image that may appear to be a perfect copy, but is not a perfect copy. Often lossy compression is able to achieve smaller file sizes than lossless compression. Most lossy compression algorithms allow for variable compression that trades image quality for file size.