SCTV and other Perceptual Uniformity TV online calculator (free)


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In free access online-calculations of Spot Colour Tone Value (SCTV) by ISO 20654:2017 can be done at: Perceptual Uniformity Tone Value calc • SCTV & CIE ΔE
Just copy the table with the Lab data by patterned and click "Calc".

Input data format:
Tone Value, Lab_L, Lab_a, Lab_b (split by tabs or just copy from Excel or Notepad)
Perceptual Uniformity Tone Value

There are 3 buttons with examples.


  • SCTV_calc_free_en.png
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