Timeline for Can I color-balance a photo if I know the light source within the photo?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 11, 2016 at 6:58 | vote | accept | Kartick Vaddadi | ||
| Dec 10, 2016 at 21:30 | history | tweeted | twitter.com/StackPhotos/status/807699121054289920 | ||
| Dec 10, 2016 at 1:02 | answer | added | Rafael | timeline score: 1 | |
| Dec 9, 2016 at 15:22 | comment | added | junkyardsparkle | See also What white balance settings do I need to capture the cast of a coloured streetlight? | |
| Dec 9, 2016 at 15:12 | answer | added | junkyardsparkle | timeline score: 1 | |
| Dec 9, 2016 at 8:13 | comment | added | Kartick Vaddadi | I want the latter. | |
| Dec 9, 2016 at 7:45 | comment | added | junkyardsparkle | It's slightly unclear whether you're trying to white-balance the photo to remove the color cast of the lights (the grey card, which doesn't work well with the narrow spectrum of sodium lights), or recreate the color of the scene as it appeared to you (which is mostly subjective, probably a setting between "daylight" and the extreme "corrective" adjustment for the color cast on the scene ). | |
| Dec 9, 2016 at 5:59 | comment | added | Count Iblis | Sodium light has a wavelength of 589 nm, you can see here that monochromatic light with that wavelength corresponds to x = 0.57 and y = 0.43. So, what you can do is transform to XYZ space and rescale X and Z such that x and y take the values corresponding to the D65 white point and then transform back to sRGB | |
| Dec 9, 2016 at 4:50 | history | asked | Kartick Vaddadi | CC BY-SA 3.0 |
