Do you have a link or can you point me in the direction of precompiled binary ?
Now I open an RGB JPEG file and I CAN save it as a jp2 file.
It open the CMYK JPEG but can't save it as JPEG2000. I then save the opened CMYK JPEG and resave as a CMYK
JPEG and when I open it in Windows Photo Gallery, it shows as 24 bits per pixel (RGB).
Are you sure there is support ?
I'm sure IPP JPEG support CMYK color format (you also proved that you can open CMYK JPEG file, isn't it?)
To save to CMYK JPEG you need to have 4-channel image.
no problem should beto decode 4-channelCMYK withUIC JPEG2000 decoder (no any color conversion, so image is returned in 4-channels), image colourspace will be specified as "Unknown". Try it, if it doesn't work, pleasesubmit a bug through Intel Premier Support site (if you are registered there).
UIC JPEG 2000 encoding doesn't support CMYK coding, mostly because it's an extension of JP2 file container (part 2 of the standard). If you need this feature, please race a record through Intel Premier Support.
an RGB JPEG200 jp2 file ? If I look at the picnic app's jpeg2k.cpp file, could this be used as a good guide ? As a novice of JPEG2000, how do you control all the option it has like image quality, ROI etc.... Is there a good reference guide that describes any high level read and write jp2 streams routines ?
Update: I'm using the picnic app to open an 80MB RGB BMP file. When saving as LOSSY jp2, I'm seeing a 16MB
jp2 file using "No MCT" and an 8MB using "MCT" at EVERY ratio value. The ratio slider does not seem to change
file size at all using "MCT". If using "NoMCT" then the 16MB size goes to 8MB ONLY if the ratio value is zero.
In summary, if using "NoMCT" then file size remains the same (16MB) for ratio values >0. Goes to 8MB when zero. My WT is set to WT53.
(If using WT97 then ratio does not change file size at all, regardless of MCT)