Saturday, 9 July 2016

color - Why does the red area in this photo look very un-natural?


I was looking through some photos I took at RAF Cosford a few weeks ago, and noticed this big red area (it's a large door surround on the floor below)


In the photoshop RAW preview, it looked almost like it was a highlighted area, but when i opened the image fully, no, its just part of the image.


It looks very un-natural to me, it appears almost better focused than the posters and door logo, but it is at the same distance. could this be a wavelength difference?


It also looks a bit blown out, which may well be part of the issue.


enter image description here


enter image description here



Answer



As Guffa said, the red channel is blown. All the RGB values are (255,0,0)



In the other red parts of the image, it's more like (190, 35, 40) and all the red, green and blue luminance values fluctuate and there is some texture/detail/noise.


enter image description here


Histogram of the blown area:


enter image description here


And of the nearby red area:


enter image description here


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