DIY Book Scanner

You're correct. We don't know how much brighter the light is at the lower edge than the upper corners, only that it is brighter. What I wanted to make apparent is that in that image the light is brighter near the bottom of the page and that distinctive circular pattern across the various levels indi...

Thanks for posting your progress. I took one of the images that you posted and reduced the number of levels in Photoshop to reveal the uneven lighting you have across the pages. In the image of both of the book's pages, the light looks as if it were pointed at the lower half of the page: 2PpmMjC_2.j...

Something to try.... Put a piece of white paper over one side of the platen glass (place OVER the glass, not underneath). Put a black piece of paper (or better, a piece of black velvet fabric) over the other side of the platen glass. Photograph the white paper. Next, replace the black paper with ano...

You can do image color-correction as a post-processing step. This thread discusses the technique somewhat.

If I were going to do this I'd get a 12"x12" piece of 1/4" MDF, put a 1/4" dowel coming out the center of it and stick that to the wall with double-stick tape. I'd put a camera on a tripod about 6' back, pointed at that dowel, and have two clip-on lights to the right and left of the tripod to light ...

cday is right. It's worth determining if you can type the info you need from the label rather than scan the entire lot. If you were going to save the images of the record label for some reason (i.e. to display onscreen of a jukebox app) then it would probably be worth it to do the image mask, color ...

i also design this Interesting design. You could make it fold up like a step ladder and make it easier to store away. Those black triangular pieces (light shields?) could be made from black fabric instead to allow the framework to fold. You may want to consider making the glass/plastic platens sit ...

Are the scanner's cameras capable of capturing images at this point? If so, after having mounted the light, do you see a reflection of the light source in the camera's view? Looking at the dimensions and angles of the platen and camera configuration shown in your first video, it looks like the camer...

I'm so pissed right now! I typed up a response comprising multiple pages explaining the formulas and examples of how to use them to calculate light and camera distances based on page sizes and platen angles and when I clicked on 'Preview' to check the formatting this POS website took me to the login...

Dan's original post regarding platen angles here: https://forum.diybookscanner.org/viewtopic.php?f=17&t=1149 For some odd reason the links to the associated videos don't appear to be in that post any longer. Here they are: Part I Part II Part III I can provide the mathematical routines for determini...