Drivers - linearization - "pleasantness" ?
2008-12-28 by the_mark_pv
Hi all, This is a xpost, I also posted on the Luminous Landscape forum, not knowing how many people read both. Pls let me know if this is bad practice. I am trying to best understand the meaning of all the settings of the Epson ABW driver (I have a R2880) I ran some experiments. I used the very useful test image Keith Cooper posted on his web site: http://tinyurl.com/5dm645 I learned a little bit about the meaning of the driver's setting from http://tinyurl.com/27jojl In all my trials I used: QIMAGE 2009.09 ABW Printer profile: sRGB (see Eric's post) Intent: Relative colorimetric (again, see Eric's post) Colormunki to read the patches Paper: Epson Ultra Premium Luster Test 1: Color Control/Advanced/Tone left to the default "neutral" setting (corresponds to darker, if I remember well) Test 2: Color Control/Advanced/Tone set to "normal" What I saw is: The "darker" print is darker than screen (calibrated monitor), and the L* of the 21-step wedge has a reasonably linear shape. The "normal" print is still darker than screen, the L* has a shape that looks like a PS curve to enhance the dark tones. The print in this case really does have much more detail in the dark shadow areas, the same as the picture shown on the PC screen. The Dmax, which is affected by the max ink, does not change Since this is called the "tone" control I assume it is normal that it would just modify the shape of the L* and not, for example, the ink limit. The questions I have are: - Why would epson set the default to something that makes the print so much darker ? - The setup that has a linear L* does come out very dark, but all experts say that you should linearize your profile. However, if I use a linear profile then I'm getting an image with no detail in the shadwos. I'm sure there's something I'm not getting, but don't know what. Thank you for your help. Marco