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09/29/2006 01:49:02 PM · #26
Made it linkable for y'all

//imagesocket.com/view/anti_portrait6a6.jpg

And, yes, I'd say it's high contrast.

Message edited by author 2006-09-29 13:49:30.
09/29/2006 03:08:45 PM · #27
Originally posted by gg3rd:

Originally posted by routerguy666:

Originally posted by dfstevenson:

Is there a difference between high contrast and high key?


Yes.


Can you elaborate?

I can.
(For this discussion I will ignore two types of high contrast - color contrast and emotional/content contrast - which are different forms of high contrast)

It is a little bit technical but basically it is a difference in their histogram (luminosity) displays.

'High key' images have most of their pixels in the highlight (right) side of the display and very few or none in the midtones and shadows (left or middle) areas of the display. Peaks in the luminosity display of a 'high key' image can either have a steep slope or a shallow one. 'High key' images are often distinguished from 'high contrast' when they display an incredible amount of tonal range and fine detail because they have shallow slopes in their luminosity display.

'High contrast' images ALWAYS have very sharp and very steep peaks in their histograms. Unlike 'high key' their pixels are not limited to the highlight area either, they can be in the midtones and/or the shadows to. It is the steepness of the peaks in the curve that is the distinguishing characteristic of 'high contrast' images, not where it is located on the histogram. 'High contrast' images show very little range of tonality between adjoining areas and usually display very little fine detail. That is what makes them 'high contrast'.

If an picture has a steep sloped luminosity curve residing only in the highlight area then it will be both a 'high key' and 'high contrast' image.
09/29/2006 03:24:33 PM · #28
You mean like this?



Sorry, this is a bit tongue in cheek, but this is the histogram from one of the Top 10 shots with the border cropped. Steve is quite right on what a true high contrast shot will look like, but that isn't necessarily what is going to win here...
09/29/2006 03:41:52 PM · #29
Originally posted by DrAchoo:

You mean like this?


Steve is quite right on what a true high contrast shot will look like, but that isn't necessarily what is going to win here...


Maybe we should have a mandatory histogram attached to our High Contrast challenge entry. I was wondering if my shot would be considered High Contrast. I guess by Steves definition and the detail in my histogram, it is.

Which also means i wont break into the top 100 with this right?
09/29/2006 04:40:35 PM · #30
Originally posted by timfythetoo:


Maybe we should have a mandatory histogram attached to our High Contrast challenge entry. I was wondering if my shot would be considered High Contrast. I guess by Steves definition and the detail in my histogram, it is.

Which also means i wont break into the top 100 with this right?

The only thing that requiring a histogram would do is generate arguements like, "that isn't a steep enough slope to be 'high contrast'!" or "I do things a little different and people just shoot me down!" Folks tend to take the challenge topics WAY to seriously.

Your histogram is fine, but don't underestimate the creativity of intolerant DPC voters. There is sure to be someone that would wrongly say that the level pixel density across the midtones disqualifies yours as 'high contrast'. You probably won't be accused of cheating by submitting a 'high key' picture into a 'high contrast' challenge, but even that shouldn't surprise you either. LOL!!!

Not all images will fit an 'ideal' definition but if you want to be a serious photographer you should at least know what the ideal is before ignoring it. That is what we are here to learn. ;)
09/29/2006 04:48:35 PM · #31
Originally posted by stdavidson:

Not all images will fit an 'ideal' definition but if you want to be a serious photographer you should at least know what the ideal is before ignoring it. That is what we are here to learn. ;)

Still being relatively new to all this photography stuff - especially the jargon and Ideal definitions - I am still trying to figure this stuff out. The technical aspect type challenges are surely more challenging for me. Overall I am just curious as to whether or not my shot counts as a high contrast pic. The voters will let me know soon enough.
09/29/2006 05:05:17 PM · #32
Originally posted by timfythetoo:

Originally posted by stdavidson:

Not all images will fit an 'ideal' definition but if you want to be a serious photographer you should at least know what the ideal is before ignoring it. That is what we are here to learn. ;)

Still being relatively new to all this photography stuff - especially the jargon and Ideal definitions - I am still trying to figure this stuff out. The technical aspect type challenges are surely more challenging for me. Overall I am just curious as to whether or not my shot counts as a high contrast pic. The voters will let me know soon enough.

It is entirely possible the comments you will get will be something like... "Yes, it is!"... "No, its not!!"... often right beside each other. If you get confused by voters then you might need to find a trusted mentor to help you out.

Technical challenges should be easy because the challenge descriptions are usually pretty cut and dry, but it is amazing how far off the submissions get sometimes. This challenge will be no exception. :)
09/29/2006 05:15:36 PM · #33
Originally posted by yanko:


Nice link but you probably already know that type of stuff wouldn't do very well in the challenge. Looking at High Contrast I it's clear to me the voters preferred just a pinch of high contrast nothing more.
Since I am currently out of WPL, I think I am going to go so overboard on high keyness just to see what the voters have to say :P. And then on Wed I 'll think this was a really bad idea. LOL
09/29/2006 11:08:31 PM · #34
Thank you Steve for the explanation and all you guys for pitching in, even bringing the histogram examples!
10/01/2006 03:02:34 AM · #35
Histogram, shmistogram. I took a picture, bumped the contrast by a large margin, and it's purty. Nuff said.
10/03/2006 03:55:28 AM · #36
Originally posted by jdannels:

Originally posted by yanko:


Nice link but you probably already know that type of stuff wouldn't do very well in the challenge. Looking at High Contrast I it's clear to me the voters preferred just a pinch of high contrast nothing more.
Since I am currently out of WPL, I think I am going to go so overboard on high keyness just to see what the voters have to say :P. And then on Wed I 'll think this was a really bad idea. LOL

yeah I'm in and ready for the wrath. :)
10/03/2006 03:58:03 AM · #37
Originally posted by jdannels:

Originally posted by jdannels:

Originally posted by yanko:


Nice link but you probably already know that type of stuff wouldn't do very well in the challenge. Looking at High Contrast I it's clear to me the voters preferred just a pinch of high contrast nothing more.
Since I am currently out of WPL, I think I am going to go so overboard on high keyness just to see what the voters have to say :P. And then on Wed I 'll think this was a really bad idea. LOL

yeah I'm in and ready for the wrath. :)


I bet you entered a low key, low contrast image right? :P
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