Hi everyone,
After much development on my thesis, I have a few queries I am hoping some
of you will be able to help me out on.
First of, my supervisor pointed out an application on the iPhone called
iPhotoLux which maps the luminance measurement of an HDR image taken by the
iPhone camera. So I am hoping what I am trying to produce in my thesis does
work.
Secondly, I have been using a Nikon DSLR camera to create HDR images in the
lighting laboratory using a scale model, so that my skills in creating a
accurate HDR image. I have also used both luminance and illuminance meters
to ensure the photos are accurate.
Therefore, after experimenting in the lighting laboratory, I got my
Smartphone camera back out and using a HDR Camera application available in
the Android market. I put both cameras side by side and took images of the
same scene on a tripod. However, I am still receiving the same error message
as before, then I found out that the HDR Camera application does not write
the EXIF data required to create a camera response curve. Therefore, just to
try the images produced by the Smartphone out, I coped the EXIF data from
the DSLR camera and inserted into the images produced by the Smartphone
camera ensuring that all the exposure value information are the same. I then
try and fuse these Smartphone camera produced images together, but the same
error message reappears.
Therefore, I was just wondering if anyone knows why the camera response
curve cannot be created even with the comparison done between the DSLR
camera and the Smartphone camera.
Thank you for all your help.
Kind regards,
Peony
--
Peony Au
Masters of Building Science Candidate
Victoria University of Wellington
New Zealand
Mobile (+64) (0)277514389
-----Original Message-----
From: Lars O. Grobe
Sent: Tuesday, August 28, 2012 12:59 AM
To: High Dynamic Range Imaging
Subject: Re: [HDRI] Photosphere "Cannot solve for response function"
Hi Peony!
Is there anything else, apart from switching to a DSLR camera, I can do
to create a camera response curve?
I guess there is something in between mobile phones and DSLR. There are
compact cameras around, some of which can be remote controlled.
Cheers, Lars.
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