saveFile after modifing pixel data

[m-ishihara]

Hi DICOM @ OFFIS,

Thank you for your everyday's support.
This time, I have wondering how to save DICOM file after internal pixel data is modified.
This process is as follows;

1. Reading original DICOM file using DcmDataset::loadFile()
2. Getting pixel data using DiPixel::getDataPtr()
3. Modifing the pixel data using some filter kernel
4. Rendering the bitmap image of the modified pixel data using DicomImage::createWindowsDIB()
5. Writing the DICOM file of the modified pixel data using DcmDataset::saveFile()

1. through 4. processes were successful, but in the last process 5. I only got the original DICOM file not the modified DICOM file.
I would appreciate it if you let me know what is wong with the last process.
I anticipate that writing process needs someting to assign some values...

Best Regards,

Maty

[Jörg Riesmeier]

First of all, DicomImage::getInterData() returns a "const DiPixel *", so you should not modify the internal pixel data as you apparently do in step 3!

Nevertheless, using DicomImage::writeFrameToDataset() or DicomImage::writeImageToDataset() between step 3 and 5 might do what you want.

[m-ishihara]

Hi Jörg,

Thank you for your reply.
For your suggestion, I could solve the problem.

Thanks,