ISO 18619:2015规定了一个程序，包括计算，通过该程序，可以调整（补偿）ICC轮廓之间的转换，以考虑源颜色空间暗端和目标颜色空间暗端之间的差异。这被称为黑点补偿（BPC）。ICC轮廓变换的相对色度编码已经提供了一种调节音阶光（白）端的机制。

ISO 18619:2015 specifies a procedure, including computation, by which a transform between ICC profiles can be adjusted (compensated) to take into account differences between the dark end of the source colour space and the dark end of the destination colour space. This is referred to as black point compensation (BPC). The relative colorimetric encoding of ICC profile transforms already provides a mechanism for such adjustment of the light (white) end of the tone scale.