Image decomposition of HD 163296 through CDI. Left: coronagraph image with no probe (i.e., total intensity image). Center: PWP-estimated speckle field. Right: CDI result (estimated astrophysical scene subtracted from the total intensity image) after one sequence of PWP. The negative values, indicated by black-colored regions, show local over-subtraction in areas where PWP cannot properly estimate the speckle field.