Improving Scanner Color Reproduction

In the previous post, the scanner profile was created with the same 343 patches that were used in MP4.8 for creation of rgb printer profile.

The MP reference patches are evenly distributed in the RGB space. In contrast, PM5 has more reference patches placed along the neutral and the 3 primarily axes, as shown below.

The patches were combined to form a larger reference target for generating  the scanner profile and the effect was analysed.

Results
.  The reference RGB values were extracted from the target112 tiff file.
.  The printed copy with the target112 was measured with a spectrometer, dtp41.
.  The printed copy was scanned and RGB values were extracted.

Conclusion
The extracted RGB values from the scanned data with dedicated scanner profile exhibit good correlation with the spectrometer's measurement data.