Ads
related to: compress images without losing quality- Remove Background
Transparent Background in Seconds.
Create Professional Looking Photos.
- Replace Photo Background
Replace background with a simple
Click ! Try inPixio software now
- Remove Background
movavi.com has been visited by 100K+ users in the past month
picmonkey.com has been visited by 10K+ users in the past month
pdfguru.com has been visited by 1M+ users in the past month
Search results
Results From The WOW.Com Content Network
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.
Most lossless compression programs do two things in sequence: the first step generates a statistical model for the input data, and the second step uses this model to map input data to bit sequences in such a way that "probable" (i.e. frequently encountered) data will produce shorter output than "improbable" data.
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.
JPEG greatly reduces the amount of data required to represent an image at the cost of a relatively small reduction in image quality and has become the most widely used image file format. [35] [36] Its highly efficient DCT-based compression algorithm was largely responsible for the wide proliferation of digital images and digital photos. [37]
Metadata – An image may have metadata stored in EXIF or XMP formats. Transparency – An image may have transparency, i.e., an alpha channel. Color Profile – An image may have an embedded ICC profile as described by the International Color Consortium. Animation – An image may have multiple frames with pauses between them, making it an ...
Instead, just eliminate JPEG artifacts as much as possible and convert to 24-bit PNG. Using the posterize option of your graphics editor with a high setting (like 40) may further reduce filesize and eliminate more artifacts without visibly reducing image quality. You can try using pngquant on the 24-bit result; this produces indexed mode images ...
Ad
related to: compress images without losing qualityinpixio.com has been visited by 10K+ users in the past month