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Fig. 3 | Heritage Science

Fig. 3

From: A study of the relationship between the migration of image silver and perceived yellowing of silver gelatine photographs

Fig. 3

The ΔL* Δa* Δb* values for the well processed (WP) and insufficiently washed (IW) fibre based matt test photographs. Top left: well processed aged at 50 °C and 70% RH, top right: well processed aged at 50 °C and 90% RH, bottom left: insufficiently washed aged at 50 °C and 70% RH, bottom right: insufficiently washed aged at 50 °C and 90% RH

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