|Original Image Cloudia - Elephant Parade 2010|
|Curves layer applied to make a linear image.|
Having applied the curves layer the original image now appears far too dark.
|Image as captured and before processing within the camera.|
On examining the histogram, as expected with an image this dark, most of the tonal values are squashed against the left-hand side.
|Histogram of the image before being processed in camera|
|Gamma correction curve.|
The gamma correction curve brings the image back to a normal appearance.
|Histogram after gamma correction|
Although not exactly the same as the original, the tonal values are spread more evenly across the histogram. A strange exercise to do was my first impression, but it has shown me the extent of processing within camera that occurs. I knew it happened, or rather I didn't really think much about it but appreciated something technical went on inside ;o) Now I know what :o)