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http://hdl.handle.net/2248/1316
Title: | Fourier smoothing of digital photographic spectra |
Authors: | Anupama, G. C |
Keywords: | Reduction techniques Photographic spectroscopy |
Issue Date: | Mar-1990 |
Publisher: | Astronomical Society of India |
Citation: | BASI, Vol. 18, No. 1 & 2, pp. 89-96 |
Abstract: | Fourier methods of smoothing one-dimensional data are discussed with particular reference to digital photographic spectra. Data smoothed using lowpass filters with different cut-off frequencies are intercompared. A method to scale densities in order to remove the dependence of grain noise on density is described. Optimal filtering technique which models signal and noise in Fourier domain is also explained |
URI: | http://hdl.handle.net/2248/1316 |
Appears in Collections: | BASI Publications |
Files in This Item:
File | Description | Size | Format | |
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anupama.pdf | 453.57 kB | Adobe PDF | ![]() View/Open |
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