RGB Values Extraction with PatchTool 3.5

In handling of spot colors,  rendering intent used is either Absolute or Relative.
1) Tiff with ProPhoto color space
      Rendering intent :  Absolute or Relative

2) Tiff with aRGB or sRGB color space
      Rendering intent : Relative

 3) Scanned Tiff image with scanner icc profile
       Rendering intent : Absolute
       Illuminant: D50


Following shows the effect due to rendering intent used for RGB value extraction with PatchTool .
Image will be too cool if wrong rendering intent was selected.

Left: correct rendering intent used                                           Right: wrong rendering intent used