Compression of the images is the function of the Online Storage Manager. The manner in which images are effectively stored reduces storage space and traffic on the network.
The compression of the images to be stored can be performed in three different ways.
Compressed: Using JPEG / JPEG2000 compression, the user can decide how much loss to introduce and balance file size and image quality.
NOTE: This is only available for use in states that allow picture processing using this method.
Lossless Compression: With Lossless Compression it is possible to use JPEG / JPEG2000 / RICE compression. Every piece of data that was originally in the file remains after the file is uncompressed. All of the information is completely restored.
Lossy Compression Factor: Lossy Compression reduces a file by permanently eliminating certain information, especially redundant information. When the file is uncompressed, only part of the original information is still there (although the user may not notice it).
Each Online Storage Manager can be separately defined to store images in a different compression mode. In addition, it is possible to define more detailed policies to choose a particular compression method according to the source AE or even modality. The compression is determined at the time that the image is stored.
NOTE: The Lossy Compression Factor controls the amount of compression. When the value is high, the file is more compressed. When the value is low, the file is less compressed.