MobileRead Forums - View Single Post - KPV: a PDF reader for Kindle, based on muPDF, GPLv3

markom · 12-07-2012, 02:28 AM

I think that nobody asked about possible implementation of white-threshold before.

It would be nice to have possibility to just choose between 0 and 255 for pdf scans with darker background.

Kindle DX White has poorer contrast, 7:1 to Graphite's 10:1, so I usually transform such pdfs directly with A-Pdf-to-Black-White application or k2pdfopt or sometimes indirectly by exporting pdf to images and then back to pdf after tone adjustment.

Will this pose a problem ?

12-07-2012, 02:28 AM	#795
markom Banned Posts: 488 Karma: 1080260 Join Date: Sep 2012 Device: sony prs t1 kindle dx ipad	I think that nobody asked about possible implementation of white-threshold before. It would be nice to have possibility to just choose between 0 and 255 for pdf scans with darker background. Kindle DX White has poorer contrast, 7:1 to Graphite's 10:1, so I usually transform such pdfs directly with A-Pdf-to-Black-White application or k2pdfopt or sometimes indirectly by exporting pdf to images and then back to pdf after tone adjustment. Will this pose a problem ? Last edited by markom; 12-07-2012 at 03:29 AM.