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Hi. I am trying to grasp the consepts of histogram, channels, colors (hue, saturation, brightness, luminance) and so on. Why do the histogram show spikes for both blue and green channel when I have screenshotted a red square with the properties as viewed in the screenshot?
1) I would have guessed that it should only show a spike for red.
2) Am I correct that the histogram show the luminance of colors?
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I created (a very amateurish) Spark page to explain, in my terms and understanding, "Histograms"
Might be worth a look 🙂
https://spark.adobe.com/page/uJB2ACU1eQzHJ/