adobe illustrator demonstration
Goal of this tutorial:
Bring life back to precious old color photos. This demonstration shows the steps for one old Kodacolor. It should give you a process for tackling your own family photos.
Level: Intermediate – assumes you know your way around Photoshop.
Software: Adobe Photoshop.
Image
My image: a classic 1956 group picture of the Price cousins, scanned it at 300 dpi (about 900 pixels square). I’m working in 8-bit color mode, but 16-bit is preferred for the least risk to the final image as you rearrange the pixels. Crop off (or otherwise turn off) any white border because it will distort your color analysis.
HistoCombo_1 Amazing Color Photo Restoration
The Histogram Palette (Window > Histogram > All Channels View, Show Histograms In Color) demonstrates the off-kilter color distributions. I originally thought the photo was “too red” and that the correction would require subtracting out the red somehow. But it is the red dye that has apparently broken down – as seen by the shift to the right in the histogram and the faded red channel view (thumbnail at the right).
Step 1. Correct Red Channel
Add a Levels Adjustment Layer from the Layers Palette button. Isolate the Red channel. (See the Figure to the right.)
Move the black and white sliders to where the red color begins. Adjust the gray slider till the photo color looks most balanced.
The result will look something like the corrected photo below. The red channel histogram and thumbnail look much healthier – even though the spikiness of the histogram mean some information is lost. (Too much and the photo will start to posterize – the reason for trying to work in 16-bit color mode.)
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