class_docstr: Benchmark for filter routines in scikit-image.
class_docstr_tok: ["Benchmark","for","filter","routines","in","scikit-image","."]
code: def time_sobel(self):
      filters.sobel(self.image)
  
imports: import numpy
  from skimage import data, filters, color
  from skimage.filters.thresholding import threshold_li
label_desc: Use image node_id 2 for calling the FiltersSuite obj's underlying member method code with example usage: obj.time_sobel() without return types