Add functionality to compress or encapsulate compressed images. about dicom4ortho HOT 4 CLOSED

Actually, ideally, if the medical provider decides that the camera capturing resolution in lossy JPG is enough, that image should be taken as such, encapsulated in DICOM, tagged as lossy compression and archived that way. This means there are two use cases for this ticket:

Use Case 1: Ideal, Maximum Resolution, medium space

as mentioned in description

• capture image in RAW format
• pass it to dicom4ortho
• have dicom4ortho compress is using some lossless compression algorithm like JPEG2000
• save image in DICOM (as encapsulated)

Use Case 2: Compressed image, lower resolution, lowest space consumption

• Camera is set to save in JPG
• Images are converted to DICOM, untouched, as JPEG
• Encapsulation
• Proper Tagging as Lossy Compression

Use Case 3: RAW, uncompressed, max resolution, max space usage

• Camera is set to save as RAW
• RAW conversion to DICOM, no compression. Straight byte array storage

However, currently the software does none of these use cases. This documentation should probably go in ADA-1107

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Created branch feature/9-jpg-encapsulation

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Implemented and merged back into develop.

Not too happy with how i handle JPEG2000. But for the current usecase, which is to import JPEG2000 images from topsServer, it is fine, becuase these are already compressed. I'm pretty sure they are not JPEG2000 lossless, because they are too small for that. I mean, it's possible that the conversion from JPG to JPEG2000 was very clean and without information or space loss. But then i have to figure out how to keep that JPEG2000 the it is, without touching it. But encapsulation requires a byte array, so i'm not too sure how to handle this. For the moment, this works.

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Fixed issue. Now i'm happy with it. Encapsulation is exactly what the word says (for once!!): takes the JPG or JPEG2000 the way it is, with header and all, and saves it in the DICOM PixelData. TransferSyntax needs to be set appropriately. Done that now, and all works as expected.

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