Hi, I have an image and the pixel values range from 0 to 180, represented by jet colorbar range.
However, I would like to differentiate my object in the image with its background by setting the background pixels out of the [0 180] range, such as 500, and make the pixels which have 500 value to be black.
But I do not want it to appear as part of the color bar. How can I go about doing that ??
Any form of help is much appreciated and happy holiday! :)
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Axes have color. You could set the color of the axes. Then you can put NaN in the image on any pixel you want to be 'empty'.