Hello there. We are trying to achieve deltaE between color proof mode in CorelDraw and actual print to be less than value of three. It's said that deltaE of 2.3 is not noticeable to human eye and we allow 0.7 to be measurement error. We've calibrated our monitor using i1Profiler and parameters according to ISO 12646:2015 (to be exact we used white point CIE D50 and luminance of 100cd/m2). To compare print copy with color proof mode we used colors of Fogra39 MW3 Subset . All comparisons has been done using spectrophotometer i1Pro. Color proofing has been done using "ISO Coated v2" color profile and absolute colorimetric rendering intent. Input image was also in ISO Coated v2 profile. First, we compared colors in Adobe Photoshop using its color proof mode. We achieved average deltaE to target color values to be 2.75, which is what we were trying to do. But, in Photoshop colorproof settings (as in all adobe products) there's a possibility to disable simulation of black ink and paper. If we do that, average deltaE becomes 6,15, which is way too big. All that these simulations do is move white point position. Secondly, we compared colors in CorelDraw in colorproof mode and got average deltaE of 6,65. Turning colorproofing on and off does not make any difference to image whatsoever. But CorelDraw changes the background of document. And that background actually becomes pretty close to the paper (deltaE=1.7). So the question is how can we achieve same behavior of colorproofing as in Photoshop? Is there any way we can get similar paper sumilation? Did we do something wrong with the setup? Does corel ignores images that have target color profile when doing color proofing? If so how can we turn that behaviour off?
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