[HDRI] Re: Contents of HDRI Digest, Vol 24, Issue 1

[Martin Moeck]

Hi Apipam,

I have no experience with the EOS 450D, but I tested the Canon EOS350D
together with Photosphere and it performed well with respect to luminance
estimation. See

"Accuracy of Luminance Maps Obtained from High Dynamic Range Images" in the
IESNA journal Leukos Vol 4 No 2, Oct 2007, pp. 99-112.

The typical RMSE for colors with low chroma is around 11%, depending on what
gray card you pick (I recommend Munsell N6). The Nikon Coolpix 5400 with a
CCD sensor used to have 20%. The luminance of saturated colors cannot be
estimated. Polychromatic LED illumination is also not suited, but broad
continuous spectra should be ok.

Regards

Martin Moeck

On Fri, May 15, 2009 at 4:21 AM, <apiparn.borisuit at epfl.ch> wrote:

> Hi All,
>
> I am newbie and I am looking for Canon EOS cameras that we can use with
> HDRcapOSX. The ideal EOS model, Canon 5D is quite expensive, so we look for
> other (much) low-cost models, such as Canon EOS450D or Canon EOS40D.
>
> Anyone has any idea does they 're matched for Photosphere?
>
> I asked Canon supplier bringing the cameras soon for testing with HDRcapOSX
> software (developed by Greg Ward and re-written by Denis Fan).
> Unfortunately,
> we do not have yet an updated Mac OSX 10.4 to run this software, we cannot
> yet
> test with the inexpensive EOS models. If I test it and have any result, I
> will
> keep you list on posted.
>
> Cheers,
> Apiparn
>
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