How can I align a series of portraits so the face stays centered, level, and the same size?
Asked 5/29/2017
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2 answers
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I have many photos of my daughter taken over several years. The face is already tagged in Google Photos/Picasa. I’d like to make each image consistent by centering on her face, rotating so the eyes are level, and scaling/cropping so her face is roughly the same size in every photo. Is there a simple way to do this in photo-editing software?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
9y ago
2 Answers
1
There is a Gimp script for this: ofn-layer-aligner.
Basically you load the two images as layers, set two points on the reference layer (typically, the center of the pupils), two points on the adjusted layer (center of the pupils again), and the script shifts/rotates/scales the adjusted layer to make the two points on the adjusted layer overlap the two points on the reference.
(*) I admit the whole thing has a steep learning curve if you never used Gimp. But if you start editing photos, Gimp is very capable and won't cost you a penny. There is a also a script to merge the first face onto the second one.
Originally by user75947. Source · Licensed CC BY-SA 4.0
user75947
8y ago
0
Generated from our catalog & community — verify before relying on it.
Yes—this is possible, but it usually isn’t fully automatic.
One practical method is to use an editor that can align images based on facial landmarks. In GIMP, a script such as ofn-layer-aligner can do this: load a reference photo and a new photo as layers, mark two matching points on each image (typically the centers of the pupils), and the script can shift, rotate, and scale the new image so those points line up with the reference. That gives you consistent eye level and face size, after which you can crop as needed.
If your photos are already organized in Picasa, you can also use its editing tools for manual adjustments such as rotate, crop, and tonal edits. That may be enough if you don’t need precise matching.
So the short answer is: yes, but usually with either manual editing or semi-automated alignment using reference points such as the eyes.
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