Since the last major post, I have acquired 3 USB microscopes. These are not full-fledged microscopes, but devices that have zoom factors and light sources. One comes with screenshot/video recording software. I used this to examine a phonograph needle on my turntable. I had enough detail to determine the source of a playback problem. As a result, I purchased a new stylus and now enjoy my LP collection.
As a precursor, let me reiterate, these blogs are for intelligent people with a university background and courses in mathematics, engineering, physics and other of the hard sciences. The first HDR image was the result of the independent work of Prof. Paul Debevec, U.C., and Gregory Ward Larson, JPL. Prof. Debevec developed an algorithm to composite several images into one. His work was published in a research paper still available online. In the back of the paper is a Matlab script of the algorithm. Matlab is published by Mathworks, Inc, and is the foremost mathematics laboratory, Matlab is widely used by scientists and professionals in a science related field. One of the unknown benefits in HDR is the ability two construct an HDR image with only two exposures (images) if the same film is used for several images. Prof. Debevec derived an additional algorithm for determining the film character and using that data to reduce the...
A lot has happened since the last post. I have acquired a Konica Minolta MAxxum 5D, replete with strap, charger and rechargable batteries. Everything works...exfept the CCD. All the pictures taken are blacked out. There's no visible physical damage to the unit. I'm considering opening up the unit and perhaps looking for a loose connection caused by a drop of the camera. I located and downloaded a service manual with diagrams and service data. I want to continue some exploration of HDR imaging. To this end, I combined my interest in my cell phone's cameras with my HDR interest and found a few programs that seem to do a good job at HDR or providing the needed lo-res images for assembling an HDR image. I prefer the assembly method. The tonemap compressor from Radiance, programmed by Eric Reinhard, is the best general purpose compressor I've run across in the years of working, albeit intermittently, with HDR. The apps for the phone are from the Apple AppStore an...
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