Compression File Formats

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  • #7027
    Eamonn
    Keymaster

    1) What Is File Compression? Why Is It Necessary To Compress Files?
    2) describe the differences between lossless and lossy compression and give examples
    3) Give examples of lossy and lossless image and video file formats

    #7032
    Rafael
    Participant

    1. File compression is used to reduce the file size of one or more files. File compression reduces the financial cost of running a network and takes up less storage space.
    2. Lossless means exactly it doesn’t lose any of the data. Lossless, A file can be restored in its original form. Lossless compression does not reduce the size of data. Lossless Compression is used in Text, images, sound. Lossy means it losses data when the compression occurs. It does not restore or rebuild in its original form. It also reduces the size of data. Lossy compression is mostly used in images, audio, and video.
    3. JPEG, GIF, MP4 -> Lossy
    PNG, BMP, ALAC -> Lossless

    #7033
    Aakriti14
    Participant

    1. File compression is a method of reducing the amount of disk space required to store a file. – Data may be sent success has come to file compression. – The amount of disk space required by internet servers is lowered. This enables servers to store more files/information while using less disk space.

    2. Lossy compression and lossless compression are two different types of compression. Lossless compression ensures that while the file size is reduced, the image quality remains unchanged – it does not decrease. The file can also be decompressed and restored to its original quality. Data is permanently lost when data is compressed with lossy compression.

    3. Images in the GIF and JPEG formats are lossy, but images in the PNG, BMP, and Raw formats are lossless.

    #7035
    haram
    Participant

    1. File compression is the process of reducing the disk space for storing those files.
    -Compressing files allows for faster data transfer.
    -Reduces the disk space required for Internet servers. This allows the server to store more files/information with less disk space.

    2. Compression can be lossy or lossless. Lossless compression means that the image quality remains the same and does not degrade when the file is compressed.

    3. GIF, JPEG, PNG, Mp3 and Mp4, Wav

    #7036
    Chien493
    Participant

    a file compression become smaller file. Save space on computer hard disk.
    Lossy compression will produce closely matched data after decompression, while lossless will produce accurate original data.
    .jpeg The higher the compression ratio, the worse the quality.

    #7042
    Fine
    Participant

    1. File compression is when the size of the original file is reduced. There are two types of file compression, lossy and lossless.
    2. Lossless compression is when the file that is compressed remains the same after compressing. Lossy compression is when the file loses its quality after the compression.
    3. Lossy: GIF, JPEG / Lossless: PNG, BMP

    #7044
    VashiTokyo
    Participant

    1. File compression is when an original size of a file is compressed into a smaller file. There are two types of file compression, lossy and lossless.
    2. Lossless compression will make the file remain the same after being compressed. Lossy compression is when a file is compression, it loses some of it’s quality.
    3. Lossy: GIF and JPEG / Lossless: PNG and BMP

    #7045
    Andrew
    Participant

    1.File compression is when the size of file or information getting smaller. It reduces space of the file.
    2.Lossless is when the file can be restored and remains. Lossy means when the file cannot be restore and loses the quality.
    3. GIF, PNG

    #7047
    Matthew Sparrow
    Participant

    1. File compression is when you reduce the size of a file to save more storage and space. By using compression you use save more storage.
    2. Lossless compression is reducing a size, but the file doesn’t lose any data before the compression. Lossy compression is the opposite of the lossless compression, instead it reduces it file and eliminate some of the date from the file. For example, Spotify is a music streaming, Spotify or most music apps use lossless, so the audio qualify doesn’t sound terrible. You can also use lossy compression, but there are cons when it comes to it. You reduce the file or image and loses data and the quality.
    3. Lossy includes MP3, MP4, AAC, WMA, Ogg and image formats such as JPEG.

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