The histogram on digital cameras typically incorporates all of the following:
- White balance.
- Color space (sRGB or AdobeRGB).
- Vignetting, dynamic range, faux HDR, etc.
- Even when shooting RAW (only), the histogram is from a low-quality embedded JPEG with all of the above “baked in” (no true raw RGB histogram in any digital camera as of late 2012).
The test scene images are shown at the very end of this page.
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