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It is possible to compress some inflated PNGs to a size below 1% of the original file. [4] PNGOUT was also available as a plug-in for the freeware image viewer IrfanView and can be enabled as an option when saving files. It allows editing of various PNGOUT settings via a dialog box. [5]
Left side of the image is from a low-quality JPEG image, showing lossy artefacts; the right side is from a PNG image. In information technology , lossy compression or irreversible compression is the class of data compression methods that uses inexact approximations and partial data discarding to represent the content.
IrfanView (/ ˈ ɪər f æ n v j uː /) is an image viewer, editor, organiser and converter program for Microsoft Windows. [5] [6] [7] It can also play video and audio files, and has some image creation and painting capabilities. IrfanView is free for non-commercial use; commercial use requires paid registration. [5]
One of the simpler ways of increasing the size, replacing every pixel with a number of pixels of the same color. The resulting image is larger than the original, and preserves all the original detail, but has (possibly undesirable) jaggedness. The diagonal lines of the "W", for example, now show the "stairway" shape characteristic of nearest ...
name, size, date IrfanView: Yes Yes Yes 1:1, fit width and/or height, lock No Yes 18 predefined sizes: 50×50–800×800 No dir-tree, search results Yes Yes name, date, file size, image width/height, type, user-defined KPhotoAlbum: Yes Yes Yes fit, in/out, presets Yes views search results by date Phase One Media Pro: Yes Yes Yes
JBIG2 is an image compression standard for bi-level images, developed by the Joint Bi-level Image Experts Group.It is suitable for both lossless and lossy compression. . According to a press release [1] from the Group, in its lossless mode JBIG2 typically generates files 3–5 times smaller than Fax Group 4 and 2–4 times smaller than JBIG, the previous bi-level compression standard released by
Free MIT: F-Spot: Image viewer and organizer for GNOME: Ettore Perazzoli 2005: 0.8.2 [5] [6] [7] 2010-12-19 Free MIT: G'MIC: Free command line software for 2D or 3D image processing and visualization David Tschumperlé October 2008: 3.5.0 [8] 2024-12-31 Free CECILL-2.1 or CECILL-C: GIMP: Free image editor and graphics creator Spencer Kimball ...
WebP-related software is released under a BSD free software license. [ 12 ] On 3 October 2011, [ 13 ] Google added an "Extended File Format" [ 14 ] allowing WebP support for animation , ICC profile , XMP and Exif metadata , and tiling (compositing very large images from maximum 16 384 × 16 384 tiles).