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Lossless data compression such as that used by the algorithms that generate TIFF or PNG files retains all the original information.
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∙ 14y ago
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How do you convert from pixel to kilobyte?
There is no straightforward conversion. An image that has (for example) 800 x 600 pixels needs to represent that many picture points. Without data compression, each picture element needs about three bytes (depending on the color depth); however, formats such as JPEG do use data compression, more precisely, lossy data compression - and the factor by which data is reduced with data compressed varies, depending on the image quality. That is, in lossy data compression, more compression means less quality.
How does compression effect images?
Any type of compression will ideally reduce the size of an image. There are two types of compression which describe how they affect images:"Lossy" compressionThis type of compression reduces the size of the image by removing some data from it. This generally cause, effect the quality of the image, which mean it will reduce your image quality."Lossless" compressionThis type of compression reduces the size of the image by changing the way in which the data is stored. Therefore this type of compression will make no changes in your image.
How does DATA compression impact the quality of data?
It shouldn't. DATA Compression just mininalizes the space it's taking up
During JPEG compression some data was discarded. Why it does not affect the overall quality of an image?
It does but not in a way that is visible to the eye as it's a reasonbly . What format is the original in? Formats such as GIF are high-compression "lossy" formats so the compression is more obvious. If you do small scale editing you'll notice the quality dropout as the image will appear blurred and then just pixels at a higher zoom. Then it's a headache.
Why you are using image compression?
Image compression is used to reduce the size of the stored data. This is done either for storage purposes or to improve transfer times.
What has the author James C Tilton written?
James C. Tilton has written: 'Space and Earth Science Data Compression Workshop' -- subject(s): Data compression, Image processing '1993 Space and Earth Science Data Compression Workshop' -- subject(s): Data compression '1995 Science Information Management and Data Compression Workshop' -- subject(s): Information management, Data compression
Could an image be displayed faster if data compression techniques were used?
Yes but it may reduce the image quality. One way to display an image faster would be to make it a smaller image. If you need image resizing software i would recommend you download fast image resizer. http://adionsoft.net/fastimageresize/
What is good and about saving your image as JPG?
This is the right format for those photo images which must be very small files; for example, for web sites or for email. The JPG file is wonderfully small, often compressed to perhaps only 1/10 of the size of the original data. However, this fantastic compression efficiency comes with a high price. JPG uses lossy compression (lossy meaning "with losses to quality") .Lossy means that some image quality is lost when the JPG data is compressed and saved, and this quality can never be recovered.
Image files that are repeatedly compressed by the JPEG algorithm suffer visible quality degradation?
There are some opinions that this is the case (see the link "JPEG Image Compression Degradation"), but I cannot agree. Normally there is no major degradation of the image by repeating the open/save jpeg operation again and again. The reason is the after the first compression step, the image colors are shifted to improve the jpeg image. After the second open the colors are already very close to the jpeg compressed data and there will be no significant change anymore. There are minimal differences, but this is it. Even with 5% quality, the output image quality remains stable. The file size remains also stable.
Which has a larger file format JPEG file or tiff file?
These are different file formats. jpeg uses a lossy compression algorithm. Tiff can use a lossless algorithm (the compression algorithithm can be defined for each image).TIFF is a flexible, adaptable file format for handling images and data within a single file, by including the header tags (size, definition, image-data arrangement, applied image compression) defining the image's geometry. For example, a TIFF file can be a container holding compressed (lossy) JPEG and (lossless) PackBits compressed images. A TIFF file also can include a vector-based Clipping path (outlines, croppings, image frames). The ability to store image data in a lossless format makes a TIFF file a useful image archive, because, unlike standard JPEG files, a TIFF file using lossless compression (or none) may be edited and re-saved without losing image quality. This is not the case when using the TIFF as a container holding compressed JPEG. Other TIFF options are layers and pages, neither are supported by JPEG.
What is the advantage of jpeg?
JPEG images (jpeg, jpg) use compression formats to reduce the data file size for digital images. While this causes a loss of image quality, it enables images to be more efficiently stored and transmitted.
What are advantages of compression?
The biggest advantage of compression is the fact that more data and other files can fit on smaller amounts of storage. A disadvantage is the quality lost when compressing.
