AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2004.11.04 11:33 "[Tiff] Support for DNG tags", by Sachin Garg
2004.11.04 16:58 "Re: [Tiff] Support for DNG tags", by Chris Cox
2004.11.05 06:07 "Re: [Tiff] Support for DNG tags", by Sachin Garg
2004.11.05 14:30 "Re: [Tiff] Support for DNG tags", by Bob Friesenhahn
2004.11.06 21:06 "Re: [Tiff] Support for DNG tags", by Sachin Garg
2004.11.05 19:44 "Re: [Tiff] Support for DNG tags", by Chris Cox
2004.11.06 20:59 "Re: [Tiff] Support for DNG tags", by Sachin Garg

2004.11.06 20:59 "Re: [Tiff] Support for DNG tags", by Sachin Garg

You need to read up on what Camera RAW data is -- it isn't RGB data. The raw sensor data has to go through some pretty extensive processing to get RGB data - that processing is demosaicing. Also, Camera RAW data typically uses lossless JPEG compression.

I'm saying that LibTIFF shouldn't be decompressing and demosaicing the Camera RAW data - it's too complex (and not easy to do well).

Thanks for clearifying this Chris.

Sachin Garg [India]
http://www.geocities.com/schngrg