AUTOMATIC TONAL HARMONIZATION FOR MULTI-SPECTRAL MOSAICS

When producing a mosaic of multiple multi -spectral images one needs to harmonize the colours so that the tone transition is smooth from one image to the other. Given two images ${\rm Im}^{a}$ and ${\rm Im}^{b}$, a transform $T$ is sought to map ${\rm Im}^{b}$ to an image that is harmonious in multi-spectral appearance to ${\rm Im}^{a}$. We give the above problem of tonal harmonization an analytical framework, in which both ideal and practical …