I have a matrix (image_spectrogram) which representing a image.
Using the imagesc function, I can shown the image.
I am trying to set the y axis to log scale, so I typed:
However, it turns out that this is a fake log scale.
The YScale did turn into log scale, but the image is absolutely identical to the linear one.
Two images are attached as following.
How to get a real log scale (y axis) image, please help me! This is the linear image:
This is the Y axis log scale image:
They are same except the fake log scale Y axis.
My original code is :
cmap = colormap('gray');