How to add a colormap manually as x-axis under an histogram?
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Olfa Lopez
le 18 Mar 2020
Commenté : Roger Breton
le 16 Jan 2022
Dear all,
I have created an histogram to look at the distribution of pixels per grey in an (8-bit) image. The reason for not using the imhist function is because I create an histogram with a double y-axis, one on the left (a log-axis) and one on the right (normal axis) to represent how wide the distribution is at the low values. (The function I use is attached, in case it is of interest to anyone. It is just an adaptation done quickly from a function by Araja.) The type of histogram I get is this:
I would like to add a colormap under the x-axis, like the one we can see here:
Anybody knows how to do so?
Thank you in advance!
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Steven Lord
le 18 Mar 2020
Call colorbar with the 'southoutside' location as shown in the "Add Horizontal Colorbar to Graph" example on the documentation page.
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