import numpy as np
from bokeh.plotting import figure, show, output_file
from bokeh.models import HoverTool
N = 500
x = np.linspace(0, 10, N)
y = np.linspace(0, 10, N)
xx, yy = np.meshgrid(x, y)
d = np.sin(xx)*np.cos(yy)
p = figure(x_range=(0, 10), y_range=(0, 10),
tools=[HoverTool(tooltips=[("x", "$x"), ("y", "$y"), ("value", "@image")])])
# must give a vector of image data for image parameter
p.image(image=[d], x=0, y=0, dw=10, dh=10, palette="Spectral11")
output_file("image.html", title="image.py example")
show(p) # open a browser
