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# This is a CamiTK python action
#
# Compute and plot image histogram using numpy and matplotlib
import camitk
import numpy as np
import matplotlib
matplotlib.use('qtagg')
import matplotlib.pyplot as plt
def process(self:camitk.Action):
image_component = self.getTargets()[0]
image_data = image_component.getImageDataAsNumpy()
flattened = image_data.ravel() # or array3d.flatten()
# Plot histogram
plt.hist(flattened, bins=50, color='blue', alpha=0.7)
plt.title("Histogram '" + image_component.getName() + "' voxel values")
plt.xlabel("Value")
plt.ylabel("Frequency")
plt.grid(True)
plt.show()
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