Search found 22 matches

by Daguerre
Sat Nov 26, 2016 8:26 pm
Forum: Classic - General Support
Topic: Improving the quality of a scanned old book
Replies: 6
Views: 1282

Improving the quality of a scanned old book

I have scanned the pages of an old paperback of mine. The results are grayscale, 200dpi jpegs. Whilst the results are readable their general appearance leaves something to be desired; there are large areas of light brown (is this what is called foxing?). Is there any way of "whitening" the pages. Pu...
by Daguerre
Sat Nov 19, 2016 5:20 pm
Forum: Classic - General Support
Topic: Automatic cropping of scanned pages
Replies: 2
Views: 747

Re: Automatic cropping of scanned pages

Many thanks. Yes, increasing the tolerance to 200 (I left the colour at white) seems to solve the problem. As I'm scanning one page at a time on a platen this 'first dark pixel' could be a possible problem as there are occasional small bits of dirt on the platen. Although I suppose it would be fail-...
by Daguerre
Sat Nov 19, 2016 3:15 pm
Forum: Classic - General Support
Topic: Automatic cropping of scanned pages
Replies: 2
Views: 747

Automatic cropping of scanned pages

I am attempting to automatically crop the text from scanned book pages. The files are jpegs. My procedure is to first straighten the pages with Auto de-skew in XnView, which works perfectly. I then use XnConvert to lightly crop the borders to square up the pages. I then apply Automatic cropping in X...
by Daguerre
Sun Oct 02, 2016 11:07 am
Forum: Classic - General Support
Topic: Tidying up straightened book pages
Replies: 6
Views: 577

Re: Tidying up straightened book pages

Many thanks for the replies. Yes, now I've discovered how to use it, resetting the canvas size seems to be the way forward. My procedure now is to straighten the pages in XnView with Auto Deskew, then tidy up the results in XnConvert with Actions set consecutively to Crop and then Canvas resize. Wit...
by Daguerre
Sat Oct 01, 2016 7:43 pm
Forum: Classic - General Support
Topic: Tidying up straightened book pages
Replies: 6
Views: 577

Re: Tidying up straightened book pages

NOTE: The above figures are appearing in reverse order. The first one is the final cropped figure. The second one is the auto deskewed figure. The third one is the original figure, as scanned.
by Daguerre
Sat Oct 01, 2016 7:38 pm
Forum: Classic - General Support
Topic: Tidying up straightened book pages
Replies: 6
Views: 577

Re: Tidying up straightened book pages

As requested, here is an example. I hope it helps.
by Daguerre
Sat Oct 01, 2016 12:55 pm
Forum: Classic - General Support
Topic: Tidying up straightened book pages
Replies: 6
Views: 577

Tidying up straightened book pages

XnView 2.34 & XnConvert 1.70 running under Win 7 Professional x64 SP1. I have a scanned book (jpeg files) and the pages are slightly skew. Auto Deskew in XnView does an excellent job of batch processing and straightening the pages but I would like to tidy them up by removing the narrow black triangl...