C.A.P.P.A.B.L.E. ©

C.A.P.P.A.B.L.E. ©

Anti-browning Apple Calculator Home2

Calculate ΔE*ab from CIELab variables and storage time for selected apple cultivar


Select apple cultivar:








Type in colorimetric values & storage time (ST) / [h]:


Subjective assessment of color difference by unaided average human eye:

ΔE*ab < 0.5 color difference hardly noticeable
ΔE*ab = 0.5 – 1.5 slightly noticeable color difference
ΔE*ab = 1.5 – 3.0 noticeable color difference
ΔE*ab = 3.0 – 6.0 considerable color difference
ΔE*ab = 6.0 – 12.0 large color difference
ΔE*ab > 12.0 extremely large color difference

Reference: Yang, Y.M., J. Yu, N., (2012). Color Image Quality Assessment Based on CIEDE2000. Advances in Multimedia 2012, 1-7.