Lossy Compression Service. The Lossy Compression Service supports delayed, JPEG Lossy compression of received images.
The class name of the MBean
The status of the MBean
The status of the MBean in text form
Group ID of file systems which are scanned for image files to compress in configured #TaskInterval.
Default Value: ONLINE_STORAGE
Group ID of writable file systems to which lossy compressed images are stored.
Default Value: LOSSY_STORAGE
Interval in which the database is checked for image files located on file systems of the configured #SourceFileSystemGroupID to compress.
Format: interval[!from-to] or NEVER
interval = poll interval in seconds (##s), minutes (##m) or hours (##h).
from = start hour (0-23) when no compression should be performed
to = end hour (0-23) when no compression should be performed
NEVER
= disable automatic compression
Example: 10s!9-17
means every 10 seconds, poll the database and check for images to compress, except between the hours of 9:00am and 5:00pm.
By setting this type of TaskInterval, you can ensure compression of images happens outside of peak imaging hours.
Default Value: NEVER
Current state if compression task is running. Used to avoid concurrency!
Maximum number of files that are compressed in one task.
Default Value: 1000
Specifies compression rules for particular SOP Class, Body Part Examined, Source AE Title.
Format: sop-class-name-or-uid:
body-part:
source-aet:
delay:
quality:
description:
ratio:
near
with
sop-class-name-or-uid = the UID of the SOP class, or a string name defined in the dictionary.xml file under uids type="SOPClass"
body-part = Body Part Examined or '*
'
source-aet = Source AE Title
delay = compression delay in minutes (##m), hours (##h) or days (##d)
quality = compression quality between 0 (= lowest image quality / highest compression ratio) and 1.0 (= highest quality / lowest compression ratio)
description = description stored in attribute Derivation Description (0008,2111) of compressed DICOM image
ratio = estimated compression ratio stored in attribute Lossy Image Compression Ratio (0028,2112) of compressed DICOM image
near = maximal absolute derivation of pixel sample values by lossy compression+decompression. -1 = disables validation of compressed images
Default Value:
ComputedRadiographyImageStorage:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
DigitalXRayImageStorageForPresentation:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
DigitalXRayImageStorageForProcessing:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
DigitalMammographyXRayImageStorageForPresentation:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
DigitalMammographyXRayImageStorageForProcessing:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
CTImageStorage:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
MRImageStorage:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
UltrasoundImageStorage:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
UltrasoundMultiframeImageStorage:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
UltrasoundImageStorageRetired:*:MOD_AET:5d:0.75:5.0:64
UltrasoundMultiframeImageStorageRetired:*:MOD_AET:5d:0.75:5.0:64
SecondaryCaptureImageStorage:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
XRayAngiographicImageStorage:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
XRayRadiofluoroscopicImageStorage:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
NuclearMedicineImageStorage:*:MOD_AET:5d:0.75:JPEG Lossy Compression with quality=0.75:5.0:64
Constrains lossy compression to objects which are external retrievable from specified Application Entity.
'-' = no such constrain..
Default Value: -
Constrains lossy compression to objects for which there is a copy available on a file system of the specified file system group. Only effective if #ExternalRetrieveAETitle = '-'.
'-' = no such constrain.
Default Value: -
Source AE Title used by operation #compressSeriesJPEGLossy for new created Series.
Default Value: DCM4CHEE
Series Description used by operation #compressSeriesJPEGLossy for new created Series. '{}' will be replaced by Series Description of uncompressed objects.
Default Value: JPEG Lossy compressed
{}
Size of write byte buffer.
Default Value: 8192
Directory to spool decompressed already lossless compressed files for its lossy compression. Relative path names are resolved relative to $DCM4CHEE_HOME/server/default/
.
Default Value: tmp
Used internally. Do NOT modify.
Used internally. Do NOT modify.
Used internally. Do NOT modify.
Used internally. Do NOT modify.
Standard MBean lifecycle method
The start lifecycle operation
The stop lifecycle operation
The destroy lifecycle operation
The detyped lifecycle operation (for internal use only)
Compress specified file JPEG Lossy with specified quality. Prompts Compression Ratio, measured on file length and on bits per pixel.
Compress specified Series located on file systems of the configured #SourceFileSystemGroupID JPEG Lossy with specified quality. Prompts number of compressed images and minimum/average/maximum Compression Ratio, measured on file length and on bits per pixel. If decompress = True, also prompts minimum/average/maximum of maximal absolute derivation of pixel sample values in decompressed images.
Checked for image files located on file systems of the configured #SourceFileSystemGroupID to compress according the configured #CompressionRules.