Fig. 1. Schematic diagram of the experimental setup of the edge enhanced imaging

Fig. 2. Schematic diagram of the detected objects

Fig. 3. Experimental results of the traditional edge-enhanced imaging. (a) and (c) are the traditional images of the amplitude object and phase object, respectively; (b) and (d) are the Fourier spectrum edge enhanced experimental results with orbital angular momentum topological charge of 1

Fig. 4. Experimental results of the thermal light non-local gradually edge enhanced imaging. (a)-(f) represent the results of the topological charges Q of 0, 0.2, 0.4, 0.6, 0.8 and 1 respectively

Fig. 5. One-dimensional profiles of the gradually edge enhanced imaging

Fig. 6. Spectrum of fractional orbital angular momentum^[5]