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+.. _opencl-default-kernels:
+
+OpenCL default kernels
+======================
+
+This section lists all kernel functions that are available to the
+:gobj:class:`opencl` filter if no filename is specified.
+
+.. c:function:: void fix_nan_and_inf ()
+
+ Sets element to 0.0 if it is NaN or Inf.
+
+.. c:function:: void absorptivity ()
+
+ Computes :math:`f(x) = -log(x)`.
+
+.. c:function:: void nlm_noise_reduction ()
+
+ Smooths data within a local neighbourhood.