IMPAX 6.5.1 Server Knowledge Base home > Web compressing images using Curator > Understanding how Curator manages web images
The following changes are made to images processed by Curator:
PALETTE data is converted to RGB without loss of data. Photometric interpretation is also changed to RGB.
YBR_PARTIAL data is converted to YBR_FULL without loss of data.
Any embedded overlays are burned into bit 11, with some loss of data.
A slope/intercept is applied to pixel data to reduce the effective bits_stored to 12 bits, with some loss of data. Special logic is applied to CT images to preserve the Hounsfield Units.
If the pixel data is not equivalent to the original, it is marked as lossy compressed. The Derivation description in the DICOM header file details the changes applied to the pixel data.
See also
Configuring curation based on object type
Configuring Curator INI settings
Frequently asked questions about wavelet compression
Topic number: 7057 Applies to: IMPAX 6.5.1 Server Knowledge Base |