The RAW Image File Format Problem - Applications of Digital SLR Cameras in Astronomy and Science
نویسنده
چکیده
This work describes the application of digital single lens reflex (SLR) cameras in astronomy science. A definition of the term raw file format is given. As with formats like FITS or TIFF, the CR2 file format is explained beeing a disclosed, and well documented raw file format. Results from raw image file decomposition with different software tools, and a comparison of imaging with a digital SLR camera and a professional grade CCD detector are presented. The analysis of noise and image histograms will help to recover problems with raw file format decomposition tools and their adjustment. Without doubt, digital SLR cameras are suited for special scientific applications. Further implications from this work are a detailed analysis of noise characteristics to achieve high quality imaging at very low light levels from raw files taken with digital SLR cameras.
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