Application of getsf to the XMM-Newtonλ ≈ 0.0024 μm image (7″ resolution) of the supernova remnant RX J1713.7−3946, adopting {X|Y}_λ = {15, 25}″. The top row shows the original image ℐ_​λ and the backgrounds ℬ_λ{X|Y} of sources and filaments. The middle row shows the component 𝒮_λ, the footprint ellipses of 41 acceptably good sources on 𝒮_λD (red squares mark the spurious peaks), and the component ℱ_λD with 13 non-branching skeletons 𝒦_k2 corresponding to the scales S_​k ≈ 40″. The bottom row shows the standard deviations 𝒰_λ in the regularized component 𝒮_λR, the flattening image 𝒬_λ, and the standard deviations in the flattened component . Intensities (in photons cm⁻² s⁻¹) are limited in range with square-root color mapping, except for 𝒬_λ, which is shown with linear mapping.