|Shooting under the ray - Infrared - 2121studio on Flickr|
Every IR photograph has been manipulated in some way. Camera software starts this process by taking signals generated from the invisible spectrum and assigning visible color values.There are no visible colors in the infrared spectrum. We set white balances to get even more visible color separation and then we perform channel swaps to get blue skies. The list of “standard” IR manipulations goes on and on. The bottom line is that all colors are false colors in infrared photography. We can embrace this fact or pretend it does not exist. Ali Baha embraces this fact and his color infrared photos certainly have that "WOW" factor..
|Bungalow - Infrared - 2121studio on flickr|
The second photo, “Bungalow” was taken from a moving vehicle in Sumatera Utara, Indonesia. Ali used a moderately fast shutter speed (1/500 sec) to freeze the motion of the vehicle.
All of the featured photos were taken with a Nikon D50 and processed with Photoshop CS3. I mention these facts because we really don’t need the most expensive stuff or the latest and greatest software to produce stunning images.
|Mount Bromo, Batok & Semeru - Infrared - 2121studio on Flickr|
Ali brings the image into Photoshop and applies the Image > Autolevels function. He then performs a red/blue channel swap using a pre-defined Photoshop action. (The channel swap procedure can be found at the end of this post) This will give you the "blue sky" effect.
For his selective color technique, Ali does the following:
Duplicate layer (Ctrl + J)
Image > Adjustments > Replace colorSelect the color you want to change with the eyedropper tool
Move the 'Hue" slider to the desired color
Add a layer mask to the duplicated layer
Using a brush set to pure black, paint over the areas where you do not want the color change.
Merge all layers (Ctrl + Shift + E)
Repeat the steps above (duplicate the layer, color replacement, mask, brush, and merge) to change other colors. Ali recommends the following YouTube video that describes the color replacement procedure.
Perahu@ Lata Berkoh Infrared - 2121studio on Flickr
The fourth photo, “Perahu@ Lata Berkoh” was taken during an outing at Taman Negara, Lata Berkoh, Jerantut, Pahang, Malaysia.
The final image, “Wonderland @ Upih Guling (Infrared)” was taken at the Endau Rompin National Park (Peta), Johor, Malaysia.
|Wonderland @ Upih Guling - Infrared - 2121 studio on Flickr|
Ali Shamsul Bahar:
Flickr Feed: http://www.flickr.com/photos/87731897@N00/
How to Do a Photoshop Channel Swap
In its simplest form, a Photoshop channel swap is accomplished as follows:
Image > Adjustments > Channel Mixer
Choose the red output channel
Set the red slider value to zero
Set the blue slider to 100%
Change the output channel to blue
Set the red slider value to 100%
Set the blue slider value to zero