AIC2020 international conference on "Natural Colours - Digital Colours" Poster Session 4. Sabina Bračko and Barbara Blaznic: Can you remember colour correctly? Ana Rabal: Effect of the size and shape of the measurement area on BRDF measurements on glossy samples LaurenceTardy: Evaluation and control of the properties and mutations of the pictorial visible Estelle Berger: Qualifying the perception of fineness in luxury watchmaking Luis Gómez-Robledo: Effect of Colorlite filters on colorblind observers