Someone on DPR asked about one of the Ansel Adams Friends of Photography workshops that I attended in 1983. In preparation for answering the question, I consulted a notebook that I used for every workshop I’ve taken. My first session was with Ruth Bernhard, who had brought her assistant, Michael Kenna, along. One of the… [Read More]
Subscribe to comments — going once…
Does anyone use the subscribe to comments feature on this site? If you do, let me know in a comment to this post. In the absence of objections, I’m planning to remove it. I like to keep the number of plugins small. I installed the feature at the request of one person, from whom I’ve… [Read More]
Observer metameric error in simulated cameras, part 3
In previous work for a project about observer metameric errors in digital cameras, I built a program that, given a target color and a set of sample reflectance spectra, will: Using principal component analysis, find a set of basis functions for the sample set Assuming the set is lit with a particular illuminant (I used… [Read More]
Observer metameric error in simulated cameras, part 2
In previous work for a project about observer metameric errors in digital cameras, I built a program that, given a target color and a set of sample reflectance spectra, will: Using principal component analysis, find a set of basis functions for the sample set Assuming the set is lit with a particular illuminant (I used… [Read More]
Observer metameric error in simulated cameras
In a previous post, I described how I had created a Matlab program to analyze sets of reflectance spectra, generate basis functions, and then use those basis functions to produce metamer sets, all with an arbitrary fixed color. For review, here is the methodology I used: Using principal component analysis, find a set of basis… [Read More]
- « Previous Page
- 1
- …
- 14
- 15
- 16
- 17
- 18
- …
- 381
- Next Page »