I am using the IJG library released on 27-Mar-1998.
The version is 6b.
I walked through the code of dcmcjpeg of dcmtk-3.5.4, where we have many options for compression(lossy,lossless,etc). It seems that you have used IJG lib.
I tried +e1 (encode-lossless-sv1).But the output compressed image is distracted and blurred.
with option "+el (encode-lossless) ", it showed the error "Unsupported JPEG Process:SOF type 0xc3"
Why such errors in lossless?
I tried to read a normal bmp file using an example code given in IJG and converted it into Jpeg file.
when i tried with lossy it is working perfectly.A valid Jpeg file created with good compression ratio and a good quality.
But for lossless, it is not working.It is creating an invalid JPEG file.
Now I have 3 questions
Do we have to make any patches in IJG library for lossless?
If so what type of work to be done for it?
Or Is IJG not supporting lossless ?
Expecting for reply asap.
Thank you in advance
Shanks
