class_docstr: Benchmark ridge filters in scikit-image.
class_docstr_tok: ["Benchmark","ridge","filters","in","scikit-image","."]
code: def time_hessian(self):
      filters.hessian(self.image)
  
imports: import numpy
  from skimage import data, filters, color
  from skimage.filters.thresholding import threshold_li
label_desc: Use image node_id 9 for calling the RidgeFilters obj's underlying member method code with example usage: obj.time_hessian() without return types