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Tone mapped high-dynamic-range (HDR) image of St. Kentigerns Roman Catholic Church in Blackpool, Lancashire, England, UK. Tone mapping is a technique used in image processing and computer graphics to map one set of colors to another to approximate the appearance of high-dynamic-range (HDR) images in a medium that has a more limited dynamic range.
The effect of gamma correction on an image: the original image was taken to varying powers, showing that powers larger than 1 make the shadows darker, while powers smaller than 1 make dark regions lighter.
The Grand Canyon image is the only one worth keeping from the Gallery IMHO, because it shows an example of direct (i.e. non gradient-based) tone mapping, which can be compared with the gradient-based tone mapping examples given in the sidebar pictures of the church and the beach, but I think the others should probably be deleted.
This tone mapping is done relative to what the virtual scene camera sees, combined with several full screen effects, e.g. to simulate dust in the air which is lit by direct sunlight in a dark cavern, or the scattering in the eye. Tone mapping and blooming shaders can be used together to help simulate these effects.
Software used for producing HDR tone mapped images. The main article for this category is High-dynamic-range imaging . Pages in category "HDR tone mapping software"
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A key application of dodging and burning is to improve contrast (tonal reproduction) in film print-making; today this is better known as tone mapping in digital photography – see high-dynamic-range imaging.
It can describe the aspects of color appearance phenomena and metrics of color differences, and it is used to obtain color gamut mapping calculations based on the perception of the human eye. [ 5 ] iCAM uses image's spatial aspects of vision and adapts stimulus to become a low-passing image.