Tint Window

[Lions]

Gianluca thank you, very interesting method you have, I have not try that before, thank you.

Frikkie

[magic48]

An interesting result indeed, Brian. If I understand this correctly, choosing different white points in the pic will result in different outputs. As you're saying, the problem is finding a spot that is purely white.

The method I use is pretty simple and involves using Threshold. Threshold is found on the adjustment layers menu second from the bottom (right). When Threshold is selected, your image will be rendered in pure black and white with no graded tones as in the image below.



The only control on the Threshold function is the slider that appears in the middle of the histogram. Start by sliding the slider all the way to the right. The image should go completely black. Start sliding the slider back toward center again until the first bits of white start to appear in your image like in the image below. These are the brightest white areas of the image.



Hope this helps!

[Lions]

I must admit that I normally use the white point method to correct terminal glass colour casts. The major problem is finding something in the picture that should be white. In the Qatar shot the only sources seem to be the white part of the Qatari flag on the rear fuselage or the white marker on the tarmac in front of the forward fuselage. I tried both sources and it came out pretty well with some added brightness and contrast.

This example uses Frikke's posted original ( but it's not the "original" original remember ). The white point was set on the left side of the pic using the flag as a white point and the right side of the pic using the tarmac marker. I then set the histogram over the whole picture. The contrast and brightness was applied evenly over the whole picture after the white points were set, with +25 brightness and +10 contrast.

An interesting result which shows clearly that sometimes what seems to be white is obviously not always so.....and I think I need to revise my white balance methods ?

Very Interesting point and results there Brain
That is the reason I dont use the "white point method" but rather the method I explained above

Cheers
Frikkie

[brianw999]

I must admit that I normally use the white point method to correct terminal glass colour casts. The major problem is finding something in the picture that should be white. In the Qatar shot the only sources seem to be the white part of the Qatari flag on the rear fuselage or the white marker on the tarmac in front of the forward fuselage. I tried both sources and it came out pretty well with some added brightness and contrast.

This example uses Frikke's posted original ( but it's not the "original" original remember ). The white point was set on the left side of the pic using the flag as a white point and the right side of the pic using the tarmac marker. I then set the histogram over the whole picture. The contrast and brightness was applied evenly over the whole picture after the white points were set, with +25 brightness and +10 contrast.

An interesting result which shows clearly that sometimes what seems to be white is obviously not always so.....and I think I need to revise my white balance methods ?

[magic48]

Yea looks like that method works out very well. Nice edit!

[Lions]

Here is another example

original shot


Edit


Cheers
Frikkie

[magic48]

Thanks Frikkie, I'll give that a try next time I edit one of my shots.

[Lions]

I tried that and the result looked much worse than Frikkie's edit, which is why I asked what he did.....

I use Photoshop CS3, and when I open the program it opens in my raw converder program, Now the reason I do this is because I shoot with a Nikon D70S which has a green cast.
I then click the white balance to "custom" and play with the "temperture" and "tint" until I see the tint or the color cast is gone

Cheers
Frikkie

[magic48]

Easiest way to get red of the tint is to correct the white point

I tried that and the result looked much worse than Frikkie's edit, which is why I asked what he did.....

[LX-A343]

Easiest way to get red of the tint is to correct the white point, preferrably on a RAW file during the RAW conversion, but that's a personal preference.

The edited shot looks kinda noisy, probably also because the original is slightly underexposed.

[Lions]

Apart from the fact that the aircraft is slightly too low in the frame and that your pic could do with some more light and some more contrast, it looks pretty good. What did you do to fix the tint?

Thank you

I use the raw converder program in Photoshop CS3, even when my shots is in jpeg, I use the "temperture' and "tint", and work with it until I see no more tint or color cast

Cheers Frikkie

[magic48]

Apart from the fact that the aircraft is slightly too low in the frame and that your pic could do with some more light and some more contrast, it looks pretty good. What did you do to fix the tint?

[Lions]

Hi there everybody

I took this shot from the new Terminal 3 at Changi Airport Singapore, now the window is heavy tinted (blue/green), I try to fix it and will it be any good?

As per shot


edited


Thank you
Frikkie