sandymc Posted September 29, 2009 Share #21 Posted September 29, 2009 Advertisement (gone after registration) Hans, Yes. But I don't think the result will change. Regards, Sandy Link to post Share on other sites More sharing options...
Advertisement Posted September 29, 2009 Posted September 29, 2009 Hi sandymc, Take a look here 2D FFT Analysis at ISO 2500. I'm sure you'll find what you were looking for!
t024484 Posted September 29, 2009 Author Share #22 Posted September 29, 2009 Sandy, The frequency domain should of course be averaged, not the time domain. But I tend to agree with you, so far there is not enough evidence to assume that noise reduction is taking place at ISO 2500. On the other hand, processing the ISO 2500 picture takes more time, so something extra is happening. When I have more time, I will try to dig deeper in the 1D FFT analysis.Maybe something can be proven after all in a more convincing way. Hans Link to post Share on other sites More sharing options...
t024484 Posted October 20, 2009 Author Share #23 Posted October 20, 2009 Hans, Yes. But I don't think the result will change. Regards, Sandy Hi Sandy, Your feeling was right. I tried whatever I could with 1D FFT's and statistical distribution analysis, but I could not find a conclusive evidence that noise reducton is taking place within the camera. So this point can be taken from my list. Hans Link to post Share on other sites More sharing options...
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