Gaps in the his­togram?

Digital Camera World - - FOOL SCHOOL -

Have you ever no­ticed gaps in the Lev­els his­togram that make it look like a comb? This shows there are bright­ness lev­els miss­ing, which may lead to pos­ter­i­sa­tion (where gra­di­ents break up into sep­a­rate bands). Avoid this by shoot­ing in raw and open­ing 16-bit files for edit­ing. If pos­ter­i­sa­tion is un­avoid­able, try adding a touch of noise (Fil­ter > Noise > Add Noise) to mask it.

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