Asked by Manar Aqqad
What is the difference between JPEG and png in data compression?
We need you to answer this question!
If you know the answer to this question, please register to join our limited beta program and start the conversation right now!
What is the difference between lz77 and lz78 in data compression?
Whats the difference between a JPEG and bmp images?
JPEG and BMP image types use different programs and algorithms to record and store the data. The BMP (bitmap) is the older format while the JPEG (Joint Photographic Experts Group) format is more recent. One difference between a JPEG and a BMP file is that the bitmap file is larger in size. This is due to the JPEG file being compressed which in turn causes a loss in picture quality.
What is the advantage of jpeg?
Asked in Technology
Which JPEG file tahes up the least amount of memory?
What is the difference between a JPEG file and a tif?
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.
TIFF files can be edited and resaved without compression loss?
Asked in Computer Terminology, Math and Arithmetic
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.
Difference between lossy and lossless data compression techniques?
How do you compress gb to MB?
To reduce the physical size of a file you can use compression technology, which comes in two types, Lossy and lossless. Lossless compression technology (The type used for storing data and executables) is limited to around a 2:1 ratio at maximum compression dependent on input data. Lossy compression technologies such as Jpeg for images or MP3 Psychoacoustic compression can exceed this many times over but looses data integrity. Newer graphics compression technologies such as fractal compression can have startling compression ratios of 100's:1 compression ratios.
Asked in Photography, Publishing, File Formats
Why do professional printers prefer TIFF over other formats?
Asked in Computers
What is difference between symmetric and asymmetric compression?
symmetric compression A data compression technique that takes about the same amount of time to compress as it does to decompress. asymmetric compression A data compression technique that typically takes more time to compress than it does to decompress. Some asymmetric compression methods take longer to decompress, which would be suited for backup files that are constantly being compressed and rarely decompressed.
Explain the difference between data and information?
Asked in Database Programming, Mining
What is the difference between data mining and OLAP?
What makes an image a bitmap or a JPEG?
What difference between DBMS and Data warehousing?
Asked in Computer Programming
What is the difference between allocation and search data structure?
Explain the difference between data and information and give an example of each?
Asked in The Difference Between
What is the difference between data communication and data communication information2010to2013?
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.
What is the difference between primary data and secondary data Don't make it complicated please?
What is the difference between a data type and a data structure?
What is the difference between compression file and decompression file?
File Compression and Decompression The NTFS file system volumes support file compression on an individual file basis. The file compression algorithm used by the NTFS file system is Lempel-Ziv compression. This is a lossless compression algorithm, which means that no data is lost when compressing and decompressing the file, as opposed to lossy compression algorithms such as JPEG, where some data is lost each time data compression and decompression occur. Data compression reduces the size of a file by minimizing redundant data. In a text file, redundant data can be frequently occurring characters, such as the space character, or common vowels, such as the letters e and a; it can also be frequently occurring character strings. Data compression creates a compressed version of a file by minimizing this redundant data. Each type of data-compression algorithm minimizes redundant data in a unique manner. For example, the Huffman encoding algorithm assigns a code to characters in a file based on how frequently those characters occur. Another compression algorithm, called run-length encoding, generates a two-part value for repeated characters: the first part specifies the number of times the character is repeated, and the second part identifies the character. Another compression algorithm, known as the Lempel-Ziv algorithm, converts variable-length strings into fixed-length codes that consume less space than the original strings. The NTFS File System File Compression On the NTFS file system, compression is performed transparently. This means it can be used without requiring changes to existing applications. The compressed bytes of the file are not accessible to applications; they see only the uncompressed data. Therefore, applications that open a compressed file can operate on it as if it were not compressed. However, these files cannot be copied to another file system. If you compress a file that is larger than 30 gigabytes, the compression may not succeed. The following topics identify the NTFS file system file compression: