2 Replies Latest reply on Oct 5, 2015 10:49 AM by sarsaxen

    Blurb Book images too dark

    Matthew A Kraus Level 1

      The images in my Blurb book made from Lightroom are too dark.  When printing, because of the mismatch between viewing an image on a monitor and viewing a print, I increase the brightness with the slider in Lightroom when I print and that works fine to compensate for the differences in brightness. 

       

      My monitor is calibrated and the brightness is 100 cd, so I don't believe the issue is there when comparing my monitor's image to the Blurb book.

       

      Is there such a compensation when making a Blurb Book?  I really don't prefer adjusting all my images and then make a guess as to what brightness compensation to use.

       

      Any suggestions appreciated.

       

      Thanks,

       

      Matthew Kraus

        • 1. Re: Blurb Book images too dark
          dj_paige Level 9

          There is a long thread on this issue.

          Brightness Adjustment for Blurb Book

          • 2. Re: Blurb Book images too dark
            sarsaxen Adobe Employee (Admin)

            Hi Matthew A Kraus,

             

            Blurb does not correct anything in the uploaded pictures. This is stated clearly on their website; read up under  Color Management & Calibration Center. Match on-screen colors | Blurb Books

            It does not matter at all if your image looks fine on the monitor. What matters is if the color numbers of the image are correct. Blurb will print according to the color numbers.

            The color numbers of your image will be displayed correctly on the monitor if it is properly calibrated to the industry standard of 6500 K and a gamma 0f 2.2 and if the intensity (brightness) of the monitor is set correctly.

            Do this: calibrate both your monitors and set the target value for brightness (intensity) to a value between 100 - 110 cd/m2. This value is considered correct as it will give you prints that match the monitor in brightness.

             

            The best test for checking for how images will look in a blurb book is this: Print the images as sRGB on your own printer. You can do this in two ways:

            a) Export the image as JPG in sRGB in the size it will be printed. You can do this from the Book Module, Re-import it into Lr and print from Lr.

            b) Don't export the image just print from Lr by selecting <Managed by printer> as the profile and set your printer to sRGB.

             

            Regards

            Sarika