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The other day the light in the sky was pretty weird, the weather was very variable: half an hour of rain with peaks and relapses, and also sprazi of calm here and the. You do not always happen the good fortune to find a time like this, but a few days ago I happened. In these weather conditions it is not uncommon to be able to take a picture blacks with clouds in the background and the foreground in light, the clouds permit.

Today we see how apply a rainbow ad a photo. Of course you can use any photo, but specifically it is more truthful a picture with the sun behind us, and the background of the picture itself clouded.

The original photo

The end result

The process is very simple. Create a new layer clicking on the button in the tab of the levels, then select the toolGradient” () and the gradient called “Full Saturation Spectrum CW“.

Once you have selected the gradient we trace the rainbow where we want it to appear.

Now we have eleiminare the red parts Gradient, To do this we will use the tool “Select by Color” () clicking on any red space. Then will press “Ctrl + X” to cancel the selection.

Now change the “Mode” level (in Taxes, levels in the tab) in “Weak light“.

Sfochiamo via the “Blur” – “Gaussian” and we set a radius of 100px. Then reduce the opacity (always from the tab levels) the 50%.

Last step: remove the rainbow from the first floor (the walls of houses in the lower part of the picture). In this case we can not be too precise, the rainbow on white background rainbow appears, and on the first floor you may cross without the risk of known.


TheJoe

I keep this blog as a hobby by 2009. I am passionate about graphic, technology, software Open Source. Among my articles will be easy to find music, and some personal thoughts, but I prefer the direct line of the blog mainly to technology. For more information contact me.

1 Comment

voucher · 4 August 2010 at 7:18 PM

Great nice tutorial .. and very good photo!!! 😀
Perfect result!!!

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