Advantages of Foveon sensor Locked

Started Jun 23, 2013 | Discussions thread
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OP Roland Karlsson Forum Pro • Posts: 27,660
Re: Advantages of Foveon sensor

Bobn2 wrote:

What is a 'color gradient'?

To be more specific, what is a 'color'?

A good question.

For an RGB image, a color is an RGB triple in some color space.

NOTE that most Bayer CFA sensors are reasonable good RGB sensors.

RAW Foveon images don't have any colors in the normal sense. But - you can use some method to convert it to RGB. Then, each pixel gets an RGB color. And - depending on method you get different colors.

Metamerism might make it impossible to do this conversion correct.

Then, of course, all is made more complicated by the need of color profiles for your devices, e.g. the camera and that you have image editors (e.g. SPP) that may transform the RGB triples, in arbitrary strange ways.

Sigma, and some Bayer camera, software do desaturation of dark areas and also soft clipping of bright areas. Both affecting color accuracy.

etc etc etc

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