Questions tagged [perception]
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Linear Gradient Histogram
Could someone explain to me in why the histogram of a linear black and white gradient looks as follows? What I do not understand: I was told that humans are more sensitive to darker and lighter ...
Is it true that "only photographers care about noise"?
I have been doing a lot of research lately in planning an upgrade to my old D70. One thing that has really jumped out at me is that I've seen the same general phrase repeated on three different ...
Do eyeglasses affect visual perception significantly enough to impact post-processing work?
I have mild astigmatism, and some times wear eyeglasses or contact lenses. I've noticed that there is some mild visual distortion and chromatic aberration when wearing eyeglasses, as compared to not ...
Distinguishing Paintings from Photographs
Is there a simple, sure-fire, 100% accurate method one can use to distinguish paintings and other works of art from photographs? I am not asking: 'What is the difference between a painting and a photo?...
White balance setting to match the way we perceive things
A white piece of paper on my table does not look as white in the evening when the light bulb is illuminating it compared to daytime when the Sun is illuminating it. The difference is much smaller than ...
How to scale between two white balance settings for perceptually equal increments?
If I have two white balance settings (say, one for direct noon sunlight, and one for full shade) and I want to create a series of interpolated settings that span between the two, what would be the ...
Can anyone reproduce the white/gold vs. blue/black dress's binary perception effect with a totally different subject?
Yesterday I asked about the strange Internet phenomenon of the dress which people very strongly perceive as either white and gold or blue and black. Here is the original: There are many theories ...
Do Left and Right matter in how the photo is perceived?
Usually, when composing I choose if placing the subject on one side or the other depending on the subject itself, the background or other subjective or practical reasons. But abstracting out from ...
Capturing large monuments and landscapes
I recently came back from a visit to Tikal, a mayan ruin filled with majestically tall structures and vertigo inducing panoramic views when looking down from on top. Unfortunately, my (and other's) ...
How does fading light affect color vision?
It's well known that the cones in retina are unable to distinguish colors in dark, leaving us only the monochrome softer vision provided by rods. And personal experience tells this "switch" to ...
Does inattentional blindness prevent us from perceiving fresh photo opportunities?
See this article for a fascinating discussion of inattentional blindness: Inattentional Blindness and Conspicuity It says in essence that our mind discards the majority of things we perceive before ...
How do quirks of the human vision system affect photography?
When looking out at the world through our eyes, it's easy to take for granted that our perceptions are an absolute rendering of How Things Are. But in fact, it's not quite as simple as that. Most of ...