Re: Query Regarding DICOM Print

vishalkhule at gmail.com wrote:
I am implementing a DICOM Print SCU by referring to DICOM Standards PS4
Annex H for Print Management. I want to print Grayscale and Color
images together on a film. [...]
But how the SCP know which kind of Basic
Image Box SOP Instance (Grayscale or Color) to create before it
received the N-SET request of Basic Image Box SOP class. 

You already cited the right part of the standard: The presentation context
is the answer to your question. The Basic Film Box N-CREATE-RQ message,
which causes the creation of the film box and all the image boxes
(color or grayscale) is transmitted together with a presentation context ID,
which is part of the lower-level DICOM network protocol (the PDU header).
The SCP can determine from this identifier whether the N-CREATE-RQ was
intended to take place in the context of the Basic Grayscale Print Management
Meta SOP Class or the Basic Color PM Meta SOP Class.
(However, as a word of warning, most SCU and some SCP implementations
I have seen so far do not correctly implement this.)

I am mentioning below an example to make my question clear.
Requirment : Print 2 Grayscale and 2 Color Images On a single Film


That is actually not possible. All image boxes on one film will be
either color or grayscale. You can only send the grayscale images
as RGB color images, which has the downside of increasing the transfer
volume and restricting the contrast depth to 8 bits/sample.

Regards,
Marco Eichelberg
OFFIS
.

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