Using dcraw with Olympus C5050Z

[pedro_vasconcelos1]

I've conducted an experiment shooting the same images as RAW and SHQ

jpegs with my Olympus C5050Z, then using the free dcraw converter to

develop the raw files under linux.

 

I managed to get a handle on the exposure, gamma and color controls,

but I found that the resoluting images had more color aliasing than

the in-camera jpegs (particularly noticeable on metal railings, etc.).

 

I know this is a result of the Bayer pattern interpolation, but

aparently the camera does it better than dcraw, which sort of defeats

the point of using a raw converter. I was a bit disapointed because I

was under the impression that the dcraw code is used by several

third-party products and with "professional" DSLRs --- but the results

I get seem worse than a pro-summer camera internal algorithms...

 

Is this aliasing problem specific to this particular camera? Is there

is any way around it?