vigilante
TPF Noob!
- Joined
- Feb 5, 2015
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- Can others edit my Photos
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I have a pretty good grasp of the histrogram in my cameras. I know if that any pixels found at the far left are a value of 0 and lost shadow detail. Pixels on the far right are 255 pure white and are basically blown out highlights.
What I don't understand is whether it means anything to have "spikes" in any other range between left and right.
For example, I've read that in terms of vertical space on the histogram, it just means "how many" pixels are in that tone. But what does that mean? How many pixels are there from top to bottom? I don't get that. Is it matched to the resolution of the shot?
If my shot is 4000 pixels tall (24mp) does that mean there are 4000 points from the top of the histogram to the bottom?
I guess the question is, what does it mean if you see spikes in the midrange of the histogram, that is to say, the graph smashes against the ceiling. Is this a bad thing that needs compensation or is it meaningless? What is the real differences between a spike that goes half way up and one that hits the top?
Here is just a random image of a histogram as an example: http://cdn-7.nikon-cdn.com/Images/L...s/2009/Histogram/Media/histogram-main-001.jpg
Notice the spike smashing against the ceiling. What does this mean, if anything?
Thanks
What I don't understand is whether it means anything to have "spikes" in any other range between left and right.
For example, I've read that in terms of vertical space on the histogram, it just means "how many" pixels are in that tone. But what does that mean? How many pixels are there from top to bottom? I don't get that. Is it matched to the resolution of the shot?
If my shot is 4000 pixels tall (24mp) does that mean there are 4000 points from the top of the histogram to the bottom?
I guess the question is, what does it mean if you see spikes in the midrange of the histogram, that is to say, the graph smashes against the ceiling. Is this a bad thing that needs compensation or is it meaningless? What is the real differences between a spike that goes half way up and one that hits the top?
Here is just a random image of a histogram as an example: http://cdn-7.nikon-cdn.com/Images/L...s/2009/Histogram/Media/histogram-main-001.jpg
Notice the spike smashing against the ceiling. What does this mean, if anything?
Thanks