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Table 1 Specifications of image processing services (simple filters)

From: An approach towards adaptive service composition in markets of composed services

   Signature Preconditions Effects
Service s i Description \(i_{\mathsf {s_{i}}}\) \( o_{\mathsf {s_{i}}} \) \(p^{+}_{\mathsf {s_{i}}}\) \(p^{-}_{\mathsf {s_{i}}}\) \(e^{+}_{\mathsf {s_{i}}}\) \(e^{-}_{\mathsf {s_{i}}}\)
s 1 Multi-channel to single-channel Multi-channel Single-channel - - Gray Colored
s 2 Binary thresholding Single-channel Single-channel - Threshold Threshold -
s 3 Gaussian filter Single-channel Single-channel - - Blurred -
   Multi-channel Multi-channel - - Blurred -
s 4 Median filter Single-channel Single-channel - - Blurred -
   Multi-channel Multi-channel - - Blurred -