Is it possible to display an matrix with an Bitdepth of 16 Bit (Colormap)

C++
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Hello,

I would like to display an one channel Matrix with a bitdepth of more then 8 Bit because I have integers up to 3000.

I found out that with Colormap it is only possible with CV_8UC1. So it is only possible to display integers from 0 to 255.

https://docs.opencv.org/master/d3/d50/group__imgproc__colormap.html

Do I have to scale the bigger integers down do 255 because in opencv it is only possible to plot a matrix with different color for each value with colormap. Or is there a different method where I can display Integers with a bit depth of 16 Bit.

Thanks in advance.

2

Hi,
Unfortunately there is no such function. You have to manage yourself such palette

3

you would use convertTo to map your value range of 0…3000 to 0…255. set alpha = 255.0/3000.0 and rtype = CV_8U

then you could apply a color map to these values.

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