Unsharp masking. Low-frequency (blurred) brightness is subtracted, to preserve and enhance local detail.
Evidently old video cameras were just Like That. I assumed it was a choice for telecine - converting high-dynamic-range film to lower-range television. After all, it can be done in analog, given a positive and a negative print.
Unsharp masking. Low-frequency (blurred) brightness is subtracted, to preserve and enhance local detail.
Evidently old video cameras were just Like That. I assumed it was a choice for telecine - converting high-dynamic-range film to lower-range television. After all, it can be done in analog, given a positive and a negative print.