Photoshop :: Standardize For Variation In Light Between Photos?
Jan 15, 2013
find a good way of standarizing my photos for colour value measurements (mean and SD from the histograms in Photoshop).
This is my problem:Variation in the birds in the photos (e.g in the crown, different colours)variation between photos, independently from variation among the birdsvariation within the photos (the amount of light varies in different areas of the same photo)
How do I standarize for variation between photos for the influence of ambient ligth of the specific area of the photo I want to measure? (e.g crown of the bird)
I need to be able to withdraw the comparable colour measurements from different photos (and its too late for a better method for actually take the photos.)
I have tried to use the white background (going down to pixel level, avoiding the orange grid and dirt) and the yellow post-it note as points to standarize, but that didnt work.
Technical info:
- I use Adobe Photoshop CS6, updated this week
- On a Windows 7 Home Premium computer
- Uploading the images as NEF-files and saving them as psd-files
- RAM: 4,00 GB (3,84 GB uasable)
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