foto_grafika's Posts

Black Imagewrap covers
Book Printing

Quick note to Blurb’s quality control: Black ImageWrap covers easily gets scratched. It doesn’t show on white covers but I have already received two black cover books and they already looked worn and scratched on arrival, presumably just by being stacked with other books in the assembly line and rubbing against them. Taking some measure like putting soft cloth between books when stacking should help prevent this.

Posted by
foto_grafika
Sep 17, 2008 9:08am PDT
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foto_grafika
 
White whites?
Book Design and Imaging

Thanks for your replies Lee and Regi. I tried the transparent PNG thing for my logo when using the custom logo option in BookSmart. Originally I had used a jpg image of my logo on a white background but it printed with a visible (albeit very slightly) grayish box around it on the white page. Switching to PNG with transparency for my logo in subsequent books solved the problem. However I didn’t feel the PNG quality was good enough for continuous tone images.

And yes Lee, I am sure the background is 255,255,255. I always make doubly sure of that by selecting the background area in the pictures in Photoshop and forcing it to white. Both the highlight clipping indicators in Curves/Levels and the info palette confirm the 255.255,255 white.

The slight tone, and it is veeery slight indeed, is actually visible in both edit and preview modes in BookSmart and on the printed page with the kind of images I described above, i.e. where the white background of the image meets the page. If I extend the background in Photoshop and drop the image into the layout as a full bleed image it isn’t noticeable any more.

With most other kinds of subject matter, like say landscape, this is not a problem since there’s no white background.

Posted by
foto_grafika
Aug 15, 2008 9:24am PDT
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foto_grafika
 
White whites?
Book Design and Imaging

Thanks Regi. I checked the RGB values in BookSmart and they are already 255 across the board for the white page background as I suspected. The page is paper white, it’s the 255-255-255 sRGB white in the photograph that doesn’t go completely paper white. This is somewhat of a drag when you do a lot of books with people photographed on silhouette white.

Posted by
foto_grafika
Aug 15, 2008 3:54am PDT
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foto_grafika
 
White whites?
Book Design and Imaging

I’ve noticed that a pure white background in photographs (RGB values 255-255-255 in PSCS3) will still have a very slight grayish tone when printed in Blurb books. As a result when printed on white pages the picture box in the layout will be visible. I want the people in the pictures who were photographed on silhouette white background to be floating freely on the page, not contained in visible (slightly) boxes.
The slightly visible gray is even visible in preview mode within Booksmart.
I’m aware of the workaround method of extending the white background in Photoshop to the extent of being able to drop the images into the layout as full bleed pictures but then I lose the page numbers and other text.
Does anyone know if this slight gray can be eliminated by a better method?

Posted by
foto_grafika
Aug 14, 2008 8:57am PDT
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foto_grafika