Fig. 1. Flow chart of high dynamic range image synthesis

Fig. 2. Flow chart of digital image imaging

Fig. 3. Inverse camera response function curves of Canon EOS-1DC

Fig. 4. Image registration results. (a) Image to be registered; (b) reference image; (c) image after registration

Fig. 5. Experimental platform. (a) Cameras; (b) lenses

Fig. 6. First set of images captured by different cameras at different exposure time. (a) 0.1 s; (b) 0.5 s; (c) 1.0 s; (d) 2.0 s

Fig. 7. First combination results obtained by different methods. (a) Proposed method; (b) method in Ref.[18]

Fig. 8. Second set of images captured by different cameras at different exposure time.(a) 0.05 s; (b) 0.2 s; (c) 0.8 s; (d) 3.2 s

Fig. 9. Second combination results obtained by different methods. (a) Proposed method; (b) method in Ref.[18]

Fig. 10. Target grayscale distributions in different directions. (a) x-axis; (b) y-axis